Answer the following questions true (T) or false (F)
1. The digestive system is regulated by the sympathetic, parasympathetic, and enteric nervous systems.
2. The mucosa of the alimentary canal from esophagus to anus is composed of simple columnar epithelium.
3. The teeth are involved in mechanical digestion as they are the major organs of mastication.
1. TRUE
2. FALSE
3. TRUE
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Which of the labeled structures in the diagram of the trigeminothalamic pathway is the first-order neuron?
a) A b) B c) C d) D e) E
Nerves that carry impulses toward the CNS only are ________
A) afferent nerves B) mixed nerves C) efferent nerves D) motor nerves
The zona fasciculata in the adrenal gland secretes ___________.
A. glucagon B. epinephrine C. estradiol D. aldosterone E. cortisol
A defect in which one or both testis fails to descend into the scrotum is:
A) azoospermia B) pseudocyesis C) orchitis D) cryptorchidism