Blood Vessels and Circulation
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| show | away...arteries
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| show | arterioles...capillaries of the organs
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| show | venule...larger veins that carry blood towards the heart
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| pattern of oxygenated/deoxygenated blood applies to both the | show 🗑
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| pulmonary circulation; in lungs.. | show 🗑
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| systemic circulation; in rest of the body... | show 🗑
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| three tunics or layers of blood vessel walls | show 🗑
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| show | ct layer consisting of collagen and elastic fibers (cells and fibers run longitudinally)
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| show | sheets of smooth muscle cells arranged circularly with circular sheets of elastin and collagen in between
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| show | simple squamous epithelium...>1mm in diameter...subendothelial layer that lies just external to the endothelium
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| show | protects the vessel, further strengthens vessel walls and anchors the vessel to surrounding sturctures
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| tunica media; vasoconstriction | show 🗑
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| show | increase diamter of blood vessel when relaxed
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| tunica media's...convey..for.. | show 🗑
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| tunica intima has | show 🗑
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| arteries conduct...and veins conduct.... | show 🗑
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| arterial... | show 🗑
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| show | wider lumens
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| arteries have ...compared to veins | show 🗑
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| veins have | show 🗑
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| show | valves
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| show | ticker (retain their round shape) whereas veins tend to collapse
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| elastic laminae exist in | show 🗑
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| show | arteries, capillaries, veins
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| 3 subtypes of arteries | show 🗑
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| arteries conduct blood | show 🗑
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| in the systemic circuit, arteries carry | show 🗑
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| in the pulmonary circuit, arteries carry | show 🗑
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| show | thicker than the tunica externa in arteries
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| elastic arteries are in the | show 🗑
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| elastic arteries are the | show 🗑
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| show | resistance conduits meaning that they are conducting arteries
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| elastic arteries have increased | show 🗑
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| show | elastin...surges of BP
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| muscular arteries = | show 🗑
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| muscular arteries lie distal to the | show 🗑
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| show | organs
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| muscular arteries are muscular because | show 🗑
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| unique feature of muscular arteries: especially | show 🗑
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| show | tunica intima and tunica media
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| (muscular arteries) external elastic lamina between the | show 🗑
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| show | smallest of the arteries
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| show | resistant conduits meaning they are conducting arteries
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| the tunica media of the arterioles consists of only | show 🗑
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| show | 3 tunics and internal elastic lamina
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| show | just a layer of smooth muscle cells and underlying endothelium
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| arterioles regulate the amount of blood flow to | show 🗑
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| show | continuous, fenestrated, sinusoidal cappillaries
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| show | smallest...large...erythrocytes
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| show | a single layer of endothelium is surrounded by basal lamina
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| show | important blood vessel type because they renew and refresh interstitial fluid
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| show | oxygen and nutrients
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| capillaries remove | show 🗑
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| show | oxygen enters the blood and co2 leaves it
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| show | receive digested nutrients
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| show | pick up hormones
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| show | nitrogenous wastes are removed from the blood
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| capillary beds are structures by which | show 🗑
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| metarteriole | show 🗑
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| show | structural intermediate between capillary and venule
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| show | venules, receive true capillaries along the way
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| show | smooth muscle cells that wrap around the root of each true capillary where it leaves the metarteriole
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| precapillary sphincter functions to regulate | show 🗑
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| most tissues and organs contain a | show 🗑
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| tendons and ligaments have | show 🗑
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| show | no capillary supply, blood supply from CTs
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| cornea and the lens also have | show 🗑
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| capillary permeability is the anatomical basis of how | show 🗑
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| show | well suited for their function in the exchange of nutrients and wastes between the blood and the tissues through the tissue fluid
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| show | block passage of small molecules
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| intercellular clefts | show 🗑
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| pericytes are...shaped cells whose... | show 🗑
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| pericytes | show 🗑
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| show | common type
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| show | endothelial...tight junctions...organs such as skeletal muscles, skin and the central nervous system
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| fenestrated capillaries have...that span the...and occur only where there are... | show 🗑
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| show | sinusoidal capillaries
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| sinusoids are...capillaries containing both | show 🗑
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| show | fenestrated
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| show | endothelial...cell junctions
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| show | intercellular clefts are wide open
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| sinusoids occur wherever | show 🗑
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| sinusoids function in decreasing | show 🗑
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| show | four
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| show | oxygen and co2...endothelium
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| show | most of small molecules to enter and exit capillaries
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| caveolae allow | show 🗑
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| show | fenestrated capillaries...small molecules to enter and exit
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| show | blood brain barrier
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| low permeability capillaries prevents all but the most | show 🗑
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| show | structural features that account for capillary permeability
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| low perm caps have complete | show 🗑
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| there are no...in low perm caps | show 🗑
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| show | cont. caps...fenestrated
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| low perm caps lack | show 🗑
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| ...and...may cross the BBB | show 🗑
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| show | venules, veins, vena cavae
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| show | capillaries toward the heart
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| in systemic circuit | show 🗑
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| show | o2 rich blood from the lungs
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| show | < arterial BP
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| venules are the | show 🗑
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| show | 1-2 layers of smooth muscle in tunica media and tunica externa
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| postcapillaryvenules are the..venules which are comprised of... | show 🗑
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| show | capillaries
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| show | veins
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| veins hold fully | show 🗑
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| tunica externa of veins is...than... | show 🗑
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| vena cavae is the | show 🗑
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| vena cavae has a tunica externa that is...by... | show 🗑
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| vena cavae have decreased | show 🗑
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| show | low venous BP and help blood flow along its course towards the heart
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| show | backflow of blood away from the heart
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| valves are | show 🗑
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| valves are most abundant in | show 🗑
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| valves found in...counteract the low venous BP | show 🗑
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| show | thoracic and abdominal cavities
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| ...of our body and limbs counteract the low venous BP | show 🗑
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| skeletal muscular pump | show 🗑
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| show | thinner walls, wider lumen, thinner tunica media, thicker tunica externa
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| vascular anastomoses have...channels where... | show 🗑
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| vascular anastomoses provide | show 🗑
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| arterial anastomoses; most organs receive blood from | show 🗑
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| show | joints...active body movements...hinder blood flow through one channel
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| occlusion in arterial anastomoses causes | show 🗑
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| show | frequently than arterial anastomoses
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| show | skin on dorsum of hand
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| show | blocks blood flow or leads to tissue death
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| vasa vasorum are | show 🗑
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| vasa vasorum function as the | show 🗑
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| vasa vasorum nourish the | show 🗑
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| show | small blood vessels
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| vasa vasorum may arise as | show 🗑
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| show | o2 poor blood leaves the right ventricle of the heart via the pulmonary trunk...anterior to the aorta and splits into right and left pulmonary arteries inferior to the aortic arch
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| each pulmonary artery enters | show 🗑
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| lobar arteries | show 🗑
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| pulmonary capillaries that surround the..where...occurs across the... | show 🗑
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| show | newly oxygenated blood...superior and inferior pulmonary veins
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| show | medial aspect of each lung
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| each pair of pulmonary veins extend from the | show 🗑
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| show | o2 rich blood leaving the left ventricle of the heart through the aorta which progressively decrease in size
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| size of arteries (largest to smallest) | show 🗑
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| arterioles become...in capillary beds, which... | show 🗑
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| show | thoroughfare channels...veins...two large vena cavae and the coronary sinus which empty into the right atrium of the heart
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| show | heart...aorta...three parts (ascending aorta, aortic arch, descending aorta)
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| ascending aorta branches into | show 🗑
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| aortic arch branches into | show 🗑
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| show | braciocephalic trunk, left common carotid artery, left subclavian artery
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| brachiocephalic trunk ascends to the | show 🗑
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| show | right common carotid artery and the right subclavian artery
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| the r and l subclavian arteries give off branches...to the...and run.. | show 🗑
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| show | the thoracic cavity...outer border of the first rib...upper limb
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| show | specific region of the upper limb it supplies
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| show | axillary, brachial, radial, ulnar, plamar, digital
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| most parts of the head and neck are supplied by the | show 🗑
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| show | most tissues of the head external to the brain and orbit and send branches
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| show | superior thyroid artery, lingual artery, facial artery, occipital artery
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| superior thyroid artery supplies the | show 🗑
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| lingual artery supplies the | show 🗑
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| show | skin and muscles of the anterior face
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| show | posterior part of the scalp
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| show | temporomandibular joint
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| show | superficial temporal artery and maxillary artery
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| show | most of the scalp
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| maxillary artery branches also to the | show 🗑
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| show | orbits and most of the cerebrum
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| show | sella turcica of sphenoid bone just posterior to the foramen and branches off
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| show | opthalamic artery(eyes and orbits), anterior and middle cerebral arteries(supplies 80% of the cerebrum)
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| show | each oter through a short anterior communicating artyer
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| show | r and l vertebral arteries...vertebral column...vertebrae and cervical spinal cord
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| show | unpaired basilar artery within the cranium
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| at the border of the pons and medulla, the basilar artery divides into a pair of...and is connected to the...by the.. | show 🗑
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| show | arterial anastomosis called the cerebral arterial circle
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| the cerebral arterial circle forms a | show 🗑
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| the cerebral arterial circle unites the | show 🗑
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| the cerebral arterial circle provides | show 🗑
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| show | posterior to the heart and inferiorly on the bodies of the thoracic and lumbar vertebrae
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| the descending aorta has two sections | show 🗑
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| show | T3-T12...thoracic organs and body wall
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| abdominal aorta goes from...and supplies the...and divides into the...which supply the... | show 🗑
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| the common iliac arteries descend...and each section is named according to the | show 🗑
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| the common iliac artery supplies the | show 🗑
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| show | bodywall, kidneys...structures outside the peritoneal cavity...paired
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| branches to the body wall, kidneys and other non peritoneal cavity structures originate along the | show 🗑
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| the major branches to visceral organs are...and arise on the... | show 🗑
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| three unpaired arteries are the | show 🗑
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| the celiac trunk is superiorly located branch that delivers... | show 🗑
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| show | left gastric artery, splenic artery and common hepatic artery
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| left gastric artery supplies | show 🗑
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| splenic artery supplies the | show 🗑
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| common hepatic trunk supplies arteries to the | show 🗑
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| the superior mesenteric artery arises about...inferior to the...to supply arteries to the | show 🗑
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| show | blood to the terminal portions of the colon and rectum
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| show | ...with corresponding arteries...distribution of arteries and veins
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| show | merging of the r and l brachiocephalic veins
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| the r and l brachiocephalic veins are each formed by the | show 🗑
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| show | union of the two common iliac veins at the level of vertebra L5
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| show | abdominopelvic viscera and the abdominal wall reaches the heart via the IVC
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| show | corresponding arteries
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| show | head and neck enters 3 pairs of veins
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| show | internal jugular veins from the dural sinuses, external jugular veins, vertebral veins
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| show | deep or superficial
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| show | palmar venous arches to the radial and ulnar veins which unite and form the brachial veins of the arm and enter the axilla as the axillary veins which become the subclavian vein at the first rib
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| show | hand
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| show | cephalic veins, basilic veins, median cubital veins, median veins of the forearm
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| show | first few intercostal spaces...brachiocephalic veins...other intercostals spaces...thoracic viscera...azygos system
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| the azygos system of veins is a group of...which flank the..and ultimately empty into the... | show 🗑
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| show | azygos vein, hemiazygos vein, and the accessory hemiazygos vein
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| show | lumbar, gonadal, renal, suprarenal, hepatic veins
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| portal system is a set of...in which...lie between the | show 🗑
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| hepatic portal system is a special | show 🗑
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| show | deep or superficial and ascend and merge to ultimately become the IVC
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| deep veins of the pelvis annd lower limbs share the names of the | show 🗑
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| the deep veins of the pelvis and lower limbs include the | show 🗑
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| superficial veins of the pelvis and lower limbs includes the | show 🗑
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