Which of the following structures contains central pattern generators that help regulate the breathing rhythm?
A. Pons
B. Forebrain
C. Cerebellum
D. Limbic system
E. Thalamus
Answer: A
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The oropharyngeal and cloacal membranes, when opened, allow the ________ to open to the outside.
A. digestive tract B. ears C. liver D. skin E. lungs
If vitamins do not provide a source of energy, what is their role in nutrition?
A) they serve as plasma membrane constituents B) they are chemical messengers C) they increase absorption of nutrients D) they absorb excess toxins E) they serve as coenzymes in metabolic pathways
The stretch reflex
A) is an example of a polysynaptic reflex. B) is important in regulating muscle length. C) involves a receptor called the Golgi tendon organ. D) is activated when a smooth muscle lengthens. E) is voluntary.
Gonadotropins include FSH and LH
Indicate whether the statement is true or false