Question

1- what are the 4 GH (growth hormone) effects?

2- cells that produce prolactin -----

3- prolactin is not under feedback control by peripheral hormone.

a- true

b- false

4- Ergot compounds (bromocriptin and Cabergolin) interact highly with what 3 receptor types?

5- Do GnRH work in the hypothalamus or anterior pituitary?

6- Which anterior hormones are single chain hormones with significant homology?

7- which anterior pituitary hormones is a peptide cleaved from POMC?

Answer 1

QUESTION-1

THE FOUR GROWTH HORMONE EFFECTS

Growth hormones are the hormones help for the tissue growth,muscle and bones growth and also regulates cell metabolism;The effects are as follows;

-1-GROWTH EFFECTS

The process includes ;

-facilitate growth of various tissues

-increases the size and number of cells in the body

-it increases the bone growth

-it increases muscle growth

-increases bone massminerals

2-METABOLIC EFFECTS

--METABOLISM OF CARBOHYDRATES

-METABOLISM OF FATS

-METABOLISM OF PROTEIN

-METABOLISM OF

3-EFFECTS ON BONES

-during embryonic development it help for the differentiations and growth of bone cells

-stimulates the growth of skeleton

-increases osteoblast and chondrocytes activity ,thus increasing muscle and bone growth

-facilitate the formation of new bones

-stimulates the process of calcification in the bones

-improves thickness and length of the bones

-improves osteoblast activity

4-LACTOGENIC EFFECTS

-improves milk production and synthesis

QUESTION-2

Cells that produce prolactin -------LACTOTROPH

LACTOTROPH

- Is a ells present in anterior pituitary glands

-anterior pituitary glands consist of five major cells that are help for the maintanance of some vital physiological functions such as;

-GROWTH AND DEVELOPMENT

-METABOLISM

-HOMEOSTASIS

-REPRODUCTION

-ADRENAL FUNCTIONS

-THYROID FUNCTIONS

-LACTATION

QUESTION-3

Answer is FALSE

Prolactin secreations is regulated by several hormones including peripheral hormones

QUESTION-4

Ergot compounds are highly interact with three receptors such as ;

-ADRENERGIC RECEPTORS

-DOPAMINERGIC RECEPTORS

-SEROTONERGIC EFFECTS

QUESTION-5

  - Growth hormone releasing hormone work in the anterior pituitary glands not in the hypothalamus

-- -it is a hypothalamic peptide hormone which stimulates anterior pituitary glands for the synthesis and the production of growth hormones

-So anterior pituitary glands may produce growth hormones

QUESTION-6

Answer is GROWTH HORMONES OR SOMATOTROPHIN

Somatotrophin is a single chain hormones produced by the anterior pituitary glands

-Somatotrophin is a protein hormones

-increases growth in bones ,cartilages and tissues

QUESTION-7

- The answer is ADENOCORTICOTROPHIC HORMONES(ACTH)

- ACTH is a hormones produced by the anterior pituitary glands

- ACTH is responsible for;

-the production of cortisol;

-cortisol is a steroid hormones regulating some vital functions such as;

-balancing the level of glucose

-regulating protein and fat metabolism

-decreasing the immune system responses

-maintain blood blood sugar levels

-maintain blood pressure

-maintain blood cholesterol levels