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Lecture Ch. 19
Part 3: Circulatory Pathways
Question | Answer |
---|---|
how many systemic arteries leave the heart and how many return blood to the heart | 1 leaves and 3 return |
have same names and run alongside the arteries | deep veins |
run in the subcutaneous tissues and don't have corresponding arteries | superficial veins |
Veins tend to be more interconnected and have more variable courses t or F | True |
high O2 levels what color. low what color | red-high low-blue |
how does the pulmonary trunk divide | right and left pulmonoary arteries |
pulmonary trunk blood that is low in O2 and high in CO2 t or F | TRUE |
the systemic cessels are named by body region traversed organ served, or bone followed | TRUE |
not all vessels are symmetrical or paired | TRUE |
division of the aorta | ascending, aortic arch, decending abdominal aorta |
ascending aorta | gives off the right and left coronary arteries only |
aortic arch | gives off the brachiocephalic trunk, the left common carotid, and the left subclavian. The brachiocephalic trunk divides into the right common carotid and the right subclavian. |
T or F. The thoracic aorta becomes the abdominal aorta after passing through the diaphraghm. The abdominal aorta divides to become the left and right common iliac arteries | TRUE |
the common carotid arteries divide in | the upper neck,, into the internal and external carotids |
the external carotids give off multiple branches which supply most of the head except for the brain and the eye. T or F | TRUE |
internal carotids supply what % of the cerebrum as well as the eye. They give off the ophthalmic arteries to the eyes and then divide into the anterior and middle cerebral arteries | 80% |
the first part of the internal carotid is called the | carotid sinus=site of baroreceptors |
verebral artereis rise from teh subclavian arteries and provide what % of blood supply to the cerebrum | 20% |
vertebral arteries pass through the foramen magnum then unite on the anterior surface of the brainstem to form the basilar artery which then divides into the posterior cerebral arteries | TRUE |
the internal carotids and vertebral sprovide all of the blood supply to the brain; | TRUE |
they are connected by the anterior and posterior communicating arteries which forms the circle of Willis. this can provide alternate routes of blood flow in the event that one vessels is blocked. | TRUE |
when the subclavian artery passes ove rthe 1st rib it becomes | the axillary artery |
the axillary has several branches and becomes the | brachial artery |
the brachial artery divides and becomes | radial and ulnar arteries |
ulnar and radial anastamose and form | the palmar arches |
the internal thoracic (mammary) artery brances from teh subclavian and gives off the anterior intercostal arteries; supplies ant. chest wall and used for coronary bypass surgery | TRUE |
the descending aorta gives off the posterior intercostal artereis, along with branches to the lungs. esophagus and diaphragm. | TRUE |
the abdominal aorta divides at about the level of the umbilicus into the common iliac arteries. | TRUE |
common iliac arteries divide into | internal and external iliacs |
they supply the pelvic organs the exteranl genitalia and the gluteus muscles | internal iliacs |
pass out of the abdominal cavity and become the femoral artery | external iliac |
gives of the deep femoral artery which supplies the thigh muscles | femoral artery |
passes post through an opening in the adductor muscles called the adductor hiatus and becomes the popliteal artery | femoral artery |
runs post to the knee joint and divides into the ant and post tibial arteries | popliteal artery |
supplies the anterior muscle compartment of the leg and becomes the dorslis pedis artery on the dorsum of the foot | anterior tibial artery |
gives off the fibular artery which supplies the muscles of the lateral calf | post tibial artery |
anastamose in the foot to form the plantar arch | dorsalis pedis and post tibial arteries |
drains everything above the diaphragm except for the coronary and pulmonary circulations | sup vena cava |
unite to form the sup vena cava | right and left brachiocephalic veins |
form the brachiocephalic veins | internal jugular and subclavian veins |
drains everything below the diaphragm and is located to the right of the abdominal aorta | inferior vena cava |
come together to form the inf vena cava | common iliac veins |
beins in the brain drain into | dural sinuses which drain to the internal jugular veins |
drain the scalp and face | external jugular veins. empty into the subclavian vein |
drain into the subclavian veins | verebral veins |
run alongside the common carotid arereis and join the subclaian veins to form the brachiocephalic veins | inernal jugular veins |
2 deep veins w/ same name found along side the areries in the limbs | TRUE |
radial, ulnar, brachial, axillary, an subclavian veins | deep veins |
cephalic bsilic and median cubital veins | superficial veins |
runs along the lateral side of the upper limb and drains into the exillary vein | cephalic vein |
runs along the medial side and joins the brachial vein to form the exillary vein | basili vein |
connects the two and often used for DRAWING BLOOD | median cubital vein |
drains the posterior thoracic wall and empties into the sup vena cava it can also provide collateral flow between the IVC and SC in certain situations | azygos vein system |
veins of the abdomen have the same names as the corresponding arteries | TRUE |
anterior tibial, fibular,post tibial, popliteal, femoral, external iliac, inernal iliac, and common iliac | deep veins |
great saphenous and samll saphenous | superficial vins of the lower limbs |
runs along the medial side of the lower limb and empties into teh femoral VEIN | great saphenous |
The longest vein in teh body and commonly used for coronary bypass grafting | great saphenous vein |
runs along the post calf and drains into the popliteal vein | small saphenous |