Endocrine Lab Histology & Lab Models

What is this?

The Hypophysis

What part of the Hypophysis is this?

What is the hormones released?

Function of each hormone?

This part is the posterior pituitary

the hormones released are (ADH, Oxytocin)

ADH - increased water reabsorption by the kidneys

Oxytocin - Stimulates uterine contractions during childbirth

What part of the Hypophysis is this?

What is the hormones released?

Anterior pituitary

the hormones released are GH, TSH, ACTH, FSH, LH, PRL, MSH,

What are the functions of each hormone released by the anterior pituitary? q

1. GH (growth hormone) - stimulates body growth and cell growth

2. TSH (thyroid stimulating hormone) - Stimulates the thyroid gland to release thyroid hormones

3. ACTH - Stimulates the adrenal cortex to release cortisol

4. FSH - Helps with egg development in females and sperm production in males

5. LH - Triggers ovulation in females and stimulates testosterone in males

6. PRL - Stimulates milk produciton

7. MSH - Influences melanin production and skin pigmentation

What is this?

What are the secretions?

What are the function of the 2 secretions?

Thyroid gland follicles

the secretions are t3 and t4

t3 & t4 regulate / increase metabolism, growth, and development.

What is this?

The Adrenal Gland

What subregion is in BLACK, and what does it secrete? what are its functions

Zona glomerulosa

The hormone secreted is aldosterone

Function of aldosterone is help increase & maintain blood pressure

What subregion is in BLUE, and what does it secrete? what are its functions

Zona fasiculata

The hormone secreted is cortisol

FUnction of cortisol is to increase blood glucose levels, and helps body response to strress

What subregion is in GREEN, and what does it secrete? what are its functions

Zona reticularis

The hormone secreted is androgens

The function is to contribute to development of sex characterstics, & contribute to libido and body hair growth

What region is in ORANGE, and what does it secrete? what are its functions

Cortex,

Aldosterone, cortisol, and androgens

What is this?

What are the regions?

What are its secretions?
What are the functions?

Testes

The regions are leydig cells, and interstitial cells

Secretions are testosterone, and androgens

testosterone : promotes development of male sex charactersitcs, sperm

androgens : contribute male sex characrestics, sex drive

What is this?

What are the secretions?

What are the functions?

Ovaries

Secretions: Estrogen, Prosgesterone

Estrogen: develops female secondary sex characteristics and help regulate menstrual cycle.

Progesterone: Prepares and maintains the uterus for pregnancy

What is this?

What are the secretions?

What are the functions?

Pancreas

Secretions : Insulin, glucagon

Insulin : Lowers blood glucose

Glucose : Raises blood glucose