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2274 Lec1
Question | Answer |
---|---|
Categories of Anatomy | Gross Anatomy, Microscopic Anatomy, Functional Anatomy |
Superior | Towards head |
Inferior | Towards feet |
Proximal | Towards core |
Distal | Away from core |
Medial | Towards the center line |
Lateral | Away from the center line |
Coronal plane | Divides the body into anterior and posterior parts |
Transverse plane | Divides the body into superior and inferior parts |
Midsagittal plane | Divides the body into equal right and left parts |
Axial region | head, neck, and trunk |
Appendicular region | upper and lower limbs |
Body Cavities | Cranial cavity, Thoracic cavity, Abdominal cavity, pelvic cavity, spinal cavity |
parietal peritoneum | Outer membrane |
visceral peritoneum | inner membrane (around organs) |
Thoracic cavity | mediastinum, pleura cavity, pericardial cavity |
Integumentary system | Protect tissues, regulate body temperature, house sensory receptors |
Skeletal system | provide support, provide attachments for muscles, produce blood cells, store inorganic salts |
Muscular system | movement, maintain posture, produce body heat |
Nervous system | receive and interpret sensory information, trigger, muscles and glands |
Endocrine system | control metabolic activities |
Cardiovascular system | shuttle blood through vessels and transport substances throughout the body |
Lymphatic system | return interstitial fluid to blood, carry certain absorbed food molecules, defend the body against infection |
Respiratory system | intake and output of air exchange gases between air and blood |
Digestive system | digests food and chemicals, expels waste products |
Urinary system | remove waste from blood, maintain water and electrolyte balance, store and transport urine |
Male reproductive system | produce and maintain sperm cells, transfer sperm cells into female reproductive tract |
Female reproductive system | produce and maintain eggs cells, receive sperm cells, support development of an embryo, function in the birth process |
Homeostasis | The tendency of an organism to maintain a stable internal environment even though the external environment changes continuously |
Components of a Physiological system | Stimulus-receptors-control center(set point)-effectors (muscles or glands)-Responce (change is corrected) |
Control Pathway: Setpoints | Oscillation around the setpoint |
Control Pathways: Feedback Loops | Initial stimulus-response-stimulus-response loop shuts off |
Negative feedback: homeostatic | Prevents sudden, severe changes in the body, Counteracts bodily disruption, most common type of feedback loop |
Positive feedback: not homeostatic | Increases (amplifies) the actions of the body, produces more instability in the body, positive feedback mechanisms are short-lived, controls only infrequent events that do not require continuous adjustments, cycle does not terminate by itself |