There are four types of encapsulated receptors. Select the exception.
A. Arrector pili corpuscles
B. Ruffini corpuscles
C. Lamellated corpuscles
D. Tactile corpuscles
E. Krause bulbs
Answer: A
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About 85% of the fluid that moves out of bloodstream at the arterial end of capillary beds is returned to the capillaries at the venous end of the capillary bed. How is the other 15% recovered?
A) it is not recovered; it is excreted by sweat glands and other excretory organs. B) it is collected by lymphatic capillaries and returned to circulation via the lymphatic system. C) it is forced back into venules through the action of surrounding muscles. D) it circulates in interstitial areas, eventually being excreted by the intestine.
The sequence of symptoms of heatstroke is
A) neurological symptoms, dizziness, skin reddening, and then headache and racing heart. B) intense itching, profuse sweating, kidney failure, racing pulse, headache. C) fever, itching, redness, headache, numb extremities, vomiting. D) headache, dizziness, exhaustion, then sweating, which stops as the skin becomes red, hot, and dry.
What substance is released by platelets to aid in the vascular spasm?
A. Histamine B. Heparin C. Thrombin D. Serotonin
Which of the following factors assists in the return of venous blood to the heart? (1) arterial dilation (2) valves in the veins (3) sympathetic stimulation (4) compression of veins by muscular movements
A. 1 and 2 B. 1, 2, 3 C. 1, 2, 3, 4 D. 2, 3, 4 E. 1, 3, 4