Which type of blood vessel holds the greatest volume of blood?
A) Artery B) Capillary C) Vein D) Arteriole
C
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Matching
A) Tetanus B) Maximal stimulus C) Wave summation D) Muscle tone E) Multiple motor unit summation 17) The stimulus above which no stronger contraction can be elicited, because all motor units are firing in the muscle. 18) Determined by alternating motor units of a muscle organ even when the muscle is at rest. 19) Continued sustained smooth contraction due to rapid stimulation. 20) The situation in which contractions become stronger due to stimulation before complete relaxation occurs. 21) How a smooth increase in muscle force is produced.
Tidal volume is ________
A) the amount of air that can be forcefully inhaled after a normal inhalation B) the amount of air that can be forcefully exhaled after a normal exhalation C) the amount of air inhaled or exhaled with each resting breath D) the maximum amount of air that can be exhaled after a maximal inspiration
Which of the following is a normal response to excessive loss of body heat in a cold
environment? A) Dermal blood vessels dilate. B) Dermal blood vessels constrict. C) Smooth muscles relax. D) Sweat glands become active.
The diagram illustrates accessory structures of the skin. What does "D" represent?
A. Hair follicle B. Duct of eccrine sweat gland C. Sweat pore D. Eccrine sweat gland E. Sebaceous gland