A&P - Chapter 26 (Part 2)

Question 1

What does TSH act on?

Answer 1

The thyroid gland

Question 2

What does TSH do?

Answer 2

Promotes and maintains growth and development of the thyroid gland

Question 3

What does the TSH stimulate?

Answer 3

The thyroid to secrete hormones

Question 4

What does the ACTH act on?

Answer 4

The adrenal cortex

Question 5

What does ACTH do?

Answer 5

Promotes and maintains normal growth and development of the adrenal cortex

Question 6

What does the ACTH stimulate?

Answer 6

The adrenal cortex in order to secrete some of its hormones

- mainly cortisol

Question 7

What does FSH act on?

Answer 7

Male and female gonads

- testes/ovaries

Question 8

What does FSH do in females? (2)

Answer 8

1. Stimulates the primary follicles of the ovary to mature in preparation for ovulation
2. Stimulates follicle cells to secrete estrogen

Question 9

What does FSH do in males?

Answer 9

Stimulates the development of the seminiferous tubules of the testes and maintains tubules sperm production

Question 10

What is another word for LH?

Answer 10

Ovulating hormone

Question 11

What does LH act on?

Answer 11

Males and females gonads with FSH

Question 12

What does LH do in females? (3)

Answer 12

1. Stimulates the formation and activity of the corpus luteum in the ovary after luteinization
2. Stimulates progesterone and estrogen secretion by corpus luteum
3. Supports FSH in stimulating maturation of follicles

Question 13

Luteninization

Answer 13

Follicle rupture

Question 14

What does LH do in males?

Answer 14

Stimulates testes to produce and secrete testosterone

Question 15

What are FSH and LH also known as?

Answer 15

Gonadotropins

- stimulate growth and maintance of the gonads

Question 16

When do gonadotropin hormones peak?

Answer 16

At puberty

Question 17

What does the hypophyseal portal system do?

Answer 17

Control the adenohypophysis secretion

Question 18

What synthesizes releasing hormones?

Answer 18

Cell bodies or neurons in certain parts of the hypothalamus

Question 19

Where do releasing hormones travel?

Answer 19

Down axons that secrete them into the blood

Question 20

How do releasing hormones enter the blood?

Answer 20

Through the hypophyseal portal system

Question 21

What do adenohypophysis contain?

Answer 21

Target cells of the releasing hormone

Question 22

What happens when the target cells are stimulated?

Answer 22

Secretion of the hormones from the adenohypophysis

Question 23

How are secretions controlled in the hypophyseal portal system?

Answer 23

By the hypothalamus

- along with negative feedback loops

Question 24

Where are ADH and oxytocin produce?

Answer 24

In nerve cell bodies in the hypothalamus

Question 25

What does ADH act on? (2)

Answer 25

1. Kidneys

2. Tubules

Question 26

What does oxytocin act on? (2)

Answer 26

1. Uterus

2. Mammary glands