Answer the following questions true (T) or false (F)
1. Ejaculation is accomplished by the parasympathetic nervous system.
2. Most organs experience dual innervation from the sympathetic and parasympathetic nervous systems.
3. The reticular formation can exercise control over autonomic centers if its connection with the hypothalamus is severed.
1. FALSE
2. TRUE
3. TRUE
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Which correctly describes the cause of the increase in alveolar ventilation that occurs when a person ascends to high altitude?
A. The decrease in PCO2 of inspired air decreases alveolar PCO2, stimulating the central chemoreceptors. B. The decrease in total atmospheric pressure causes a greater negative pressure in the intrapleural space, resulting in deeper and more frequent breathing. C. The decrease in PCO2 of inspired air decreases alveolar PCO2, stimulating the peripheral chemoreceptors. D. The decrease in PO2 of inspired air decreases alveolar and arterial PO2, stimulating the peripheral chemoreceptors. E. The decrease in the total barometric pressure at high altitude causes hypocapnea, which stimulates peripheral chemoreceptors.
Normal functioning of the reproductive system is not aimed toward homeostasis and is not necessary for survival of the individual
Indicate whether the statement is true or false
Bones are constantly undergoing resorption for various reasons. Which of the following cells accomplishes this process?
osteocyte osteoblast osteoclast
The pons and cerebellum arise from which secondary embryonic vesicle?
A. Metencephalon B. Myelencephalon C. Diencephalon D. Mesencephalon E. Telencephalon