Match each of the terms with its definition or description.
a. atria
b. ventricles
c. tricuspid valve
d. bicuspid valve
e. chordae tendineae
f. semilunar
g. parietal pericardium
h. myocardium
i. epicardium
j. endocardium
1. _____ Innermost layer of the heart wall
2. _____ Valve separating the right atrium from the right ventricle
3. _____ Valve separating the left atrium from the left ventricle
4. _____ Another term for the visceral pericardium
5. _____ Receiving chambers of the heart
6. _____ Fibrous sac surrounding the heart
7. _____ Valve between a ventricle and an artery
8. _____ Discharging chambers of the heart
9. _____ Stringlike structures that attach to the atrioventricular valves of the heart
10. _____ Muscle layer of the heart
1. j. endocardium
2. c. tricuspid valve
3. d. bicuspid valve
4. i. epicardium
5. a. atria
6. g. parietal pericardium
7. f. semilunar
8. b. ventricles
9. e. chordae tendineae
10. h. myocardium
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Describing a physiological variable as "homeostatic" means that it
A. has varied from the normal value, and will remain constant at the new value. B. is in an equilibrium state that requires no energy input to stay at the normal value. C. has no normal range, but will just change to match the outside environmental conditions. D. never varies from an exact set point value. E. is in a state of dynamic constancy that is regulated to remain near a stable set point value.
Sensory neurons that are always active are called ________ receptors
A) tonic B) static C) phasic D) isometric E) isotonic
Briefly explain the difference between chronic and acute renal failure
A) Chronic renal failure is a sudden loss of renal function, whereas acute renal failure is a gradual loss of renal function. B) Chronic renal failure is a gradual loss of renal function, whereas acute renal failure is a sudden loss of renal function. C) Chronic renal failure is a sudden loss in the ability to concentrate urine, whereas acute renal failure is a gradual loss in the ability to concentrate urine. D) Chronic renal failure is a gradual loss in the ability to concentrate urine, whereas acute renal failure is a sudden loss in the ability to concentrate urine. E) Chronic renal failure is the gradual loss in the ability to reabsorb glucose, whereas acute renal failure is a sudden loss in the ability to reabsorb glucose.
Protein hormones are secreted in a regulated manner, through a mechanism referred to as:
A. stimulus-secretion coupling B. constitutive secretion C. endocytotosis recycling D. signal peptidase-induced cleavage E. membrane shedding