When the baroreceptor reflex is triggered by a decline in blood pressure,
A) cardiac output increases.
B) sympathetic activity increases, cardiac output increases, and peripheral resistance decreases.
C) sympathetic activity increases and cardiac output increases.
D) sympathetic activity increases.
E) peripheral resistance decreases.
C) sympathetic activity increases and cardiac output increases.
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Answer the following statements true (T) or false (F)
1. The largest volume of fluid in the body is in the plasma. 2. The three main fluid compartments of the body are intracellular fluid, extracellular fluid, and plasma. 3. Two fluid compartments make up the interstitial fluid compartment, the extracellular fluid and the plasma. 4. Infants have less water per pound of body weight than do adults. 5. Obese people tend to have more water per pound of body weight than do slender people.
Which of the following is not a function associated with the spinal cord?
A. To conduct motor information down the cord B. To conduct sensory information up to the brain C. To coordinate the alternating contraction of several muscle groups associated with locomotion D. To protect neurons in both the ascending and descending tracts E. To mediate a reflex, such as the withdrawal of a hand from pain
All of the following are regions of the colon except which one?
A. Anal canal B. Sigmoid C. Rectum D. Cecum
What process converts a spermatid to a mature sperm cell?
A. spermatogenesis B. cryptorchidism C. gubernaculum D. spermiogenesis