Exam (elaborations)
WCU - PHYS 261 FINAL EXAM LATEST ANSWERS .
- Course
- PHYS 261 Human Physiology
- Institution
- West Coast University
WCU - PHYS 261 FINAL EXAM LATEST ANSWERS .
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1 / WCU PHYS 261 Final1.Physiology: Normal functioning of a living organism and its components (parts; including chemical and physical)
2.Homeostasis: Maintaining a stable internal environment
3.Placebo: A drug treatment that is expected to have no pharmaceutical effect on humans/animals
4.Cations: positively charged ions
5.Isotopes: two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei. differ in relative atomic mass but not in chemical properties.
6.Active cellular transport: is the movement of molecules across a membrane from a region of their lower concentration to a region of their higher concentra- tion—against the concentration gradient. Requires cellular energy.
7.Absolute Refractory period: during which a second action potential cannot be triggered no matter how large the stimulus
8.Isotonic muscle contraction: Creates force and moves the load EX) lifting weights .isometric muscle contraction: creates force without moving a load Ex) wall planks
10.Intercalated disc: Located in the heart, allows communication between the different heart cells for uniformed contraction. Gap junction of the heart
11.Myocardial infraction: when blood flow to the heart muscle is abruptly
cut off, causing tissue damage. This is usually the result of a blockage in
one or more of the coronary arteries.
12.Isovolumic ventricular systole: an event occurring in early systole during which the ventricles contract with no corresponding volume change
13.Cardiac output: The amount of blood pumped per ventricle per unit CO= HR x SV
14.Angiogenesis: formation of new blood vessels, especially after birth. Example: wound healing and tumors
15.Mean Arterial Pressure: Driving force of pressure, pressure driving the
blood throughout the body. Average blood pressure in the arteries, estimated as diastolic pressure plus one third of the pulse pressure
16.Erythropoietin: A hormone produced and released by the kidney that
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