Hormones and Sexual Development

Question 1

What tropic hormone does CRF release?

Answer 1

Adrenocorticotropic Hormone (ACTH)

Question 2

What peripheral organ and hormone does ACTH affect?

Answer 2

Adrenal Cortex and Cortisol

Question 3

What peripheral actions are a result of the release of ACTH and cortisol?

Answer 3

Stress Response

Question 4

What is the releasing factor for ACTH and cortisol?

Answer 4

CRF (corticotropin releasing factor)

Question 5

What tropic hormone does TRH release?

Answer 5

TSH- Thyroid Stimulating Hormone

Question 6

What peripheral organ and hormone does TSH affect?

Answer 6

Thyroid Gland and T3/T4

Question 7

What peripheral actions are a result of the release of TSH and T3/T4?

Answer 7

Thermoregulation and Metabolism

Question 8

What is the releasing factor for TSH and T3/T4?

Answer 8

TRH- Thyrotropin Releasing Hormone

Question 9

What tropic hormones does GnRH release?

Answer 9

LH- Luteinizing Hormone and FSH-Follicle Stimulating Hormone

Question 10

What peripheral organ and hormone does LH and FSH affect?

Answer 10

Gonads and sex hormones

Question 11

What peripheral actions are a result of the release of LH, FSH and sex hormones?

Answer 11

Menstrual Cycle, Sperm Production, etc.

Question 12

What is the releasing factor for LH and FSH?

Answer 12

GnRH- Gonadotropin Releasing Hormone

Question 13

What tropic hormone does GHRH release?

Answer 13

GH- growth hormone

Question 14

What peripheral organ(s) does GH affect?

Answer 14

Muscles. bones, etc.

Question 15

What peripheral actions are a result of the release of GH?

Answer 15

Growth throughout the body

Question 16

What is the releasing factor for GH?

Answer 16

GHRH- Growth Hormone Releasing Hormone

Question 17

What tropic hormone does serotonin and TRH release?

Answer 17

Prolactin

Question 18

What peripheral organ does prolactin affect?

Answer 18

Mammary glands

Question 19

What peripheral action is a result of the release of prolactin?

Answer 19

Milk Production

Question 20

What is the releasing factor(s) for prolactin?

Answer 20

Serotonin and TRH

Question 21

Describe the process of the milk letdown reflex

Answer 21

A stimulus sends a signal to the hypothalamus which then releases oxytocin into the blood, which then acts in the milk ducts to cause the milk letdown

Question 22

Where is the oxytocin in the milk letdown reflex produced?

Answer 22

Posterior Pituitary Gland

Question 23

What type of receptors are used by peptide hormones?

Answer 23

Metabotropic

Question 24

What type of receptors are used by steroid hormones?

Answer 24

Intracellular

Question 25

What are some examples of steroid hormones?

Answer 25

Cortisol, testosterone, DHT, estradiol, and progesterone

Question 26

During what stage of the menstrual cycle is fertility highest in women?

Answer 26

Periovulatory

Question 27

How do oral contraceptives block pregnancy?

Answer 27

Exert negative feedback on the hypothalamus and pituitary to block the LH surge therefore blocking ovulation

Question 28

What are the effects of oxytocin on the body?

Answer 28

Milk letdown, olfactory memory, and orgasm

Question 29

What are the effects of vasopressin on the body?

Answer 29

Fluid balance and pair bonding

Question 30

Where are posterior pituitary hormones made?

Answer 30

Hypothalamus

Question 31

Describe the synthesis pathway for sex hormones

Answer 31

Cholesterol, Progesterone, Testosterone, Estradiol OR Dihydratetestosterone (DHT)

Question 32

Which sex hormone does the process of aromatase produce?

Answer 32

Estradiol

Question 33

Which sex hormone does the process of 5-alpha reductase produce?

Answer 33

DHT