Question

question 9 (2.5 points)
the anterior pituitary gland secretes ______.

a) calcitonin

b) growth hormone

c) vasopressin

d) oxytocin

question 10 (2.5 points)
which of the following systems consists of the brain and spinal cord?

a) central nervous system

b) autonomic nervous system

c) peripheral nervous system

Explanation:

Question 9

• Option a: Calcitonin is secreted by the thyroid gland's parafollicular cells, not the anterior pituitary.
• Option b: Growth hormone (somatotropin) is secreted by the anterior pituitary gland, which is correct.
• Option c: Vasopressin (antidiuretic hormone) is secreted by the posterior pituitary (though synthesized in the hypothalamus).
• Option d: Oxytocin is also secreted by the posterior pituitary (synthesized in the hypothalamus).

• Option a: The central nervous system (CNS) is defined as consisting of the brain and spinal cord, which matches the question.
• Option b: The autonomic nervous system is part of the peripheral nervous system, controlling involuntary functions, and does not include the brain/spinal cord as its core structure.
• Option c: The peripheral nervous system consists of nerves outside the brain and spinal cord (e.g., cranial and spinal nerves), so it does not match.

Answer:

b) growth hormone

Question 10