Assignment Directions

Task:

Answer the following 10 questions based on the material covered in Chapter 16 of the textbook and the accompanying presentation notes.

Format:

• Multiple Choice: Select the best answer from the options provided.
• Short Answer: Provide a concise and accurate response in your own words.

Source Citations:

• For questions based on the textbook, include the relevant page number(s) in parentheses after the question.
• For questions based on the presentation notes, include the relevant slide number(s) in parentheses after the question.

Grading:

• Each question is worth 1 point.
• Total possible points: 10

1. The anterior pituitary secretes all but
   (a) antidiuretic hormone, (b) growth hormone, (c) gonadotropins, (d) TSH.
2. Parathyroid hormone
   (a) increases bone formation and lowers blood calcium levels, (b) increases calcium excretion from the body, (c) decreases calcium absorption from the gut, (d) demineralizes bone and raises blood calcium levels.

3. Choose from the following key to identify the hormones described.

Key:

(a) aldosterone

(b) antidiuretic hormone

(c) growth hormone

(d) luteinizing hormone

(e) oxytocin

(f) prolactin

(g) T4 and T3

(h) TSH

___ (1) important anabolic hormone; many of its effects mediated by IGFs

___ (2) cause the kidneys to conserve water and/or salt (two choices)

___ (3) stimulates milk production

___ (4) tropic hormone that stimulates the gonads to secrete sex hormones

___ (5) increases uterine contractions during birth

___ (6) major metabolic hormone(s) of the body

___ (7) causes reabsorption of sodium ions by the kidneys

___ (8) tropic hormone that stimulates the thyroid gland to secrete thyroid hormone

___ (9) secreted by the posterior pituitary (two choices)

___ (10) the only steroid hormone in the list

4. Testosterone is to the male as which hormone is to the female?
(a) luteinizing hormone, (b) progesterone, (c) estrogen, (d) prolactin.

5. If anterior pituitary secretion is deficient in a growing child, the child will
(a) develop acromegaly, (b) become a dwarf but have fairly normal body proportions, (c) mature sexually at an earlier than normal age, (d) be in constant danger of becoming dehydrated.

6. If there is adequate carbohydrate intake, secretion of insulin results in
(a) lower blood glucose levels, (b) increased cell utilization of glucose, (c) storage of glycogen, (d) all of these.

7. Hormones
(a) are produced by exocrine glands, (b) are carried to all parts of the body in blood, (c) remain at constant concentration in the blood, (d) affect only non-hormone-producing organs.
8. Some hormones act by

(a) increasing the synthesis of enzymes, (b) converting an inactive enzyme into an active enzyme, (c) affecting only specific target organs, (d) all of these.

9. Define hormone and explain the importance of its function.

10. Absence of thyroid hormone would result in
(a) increased heart rate and increased force of heart contraction, (b) depression of the CNS and lethargy, (c) exophthalmos, (d) high metabolic rate.