Endocrine Glands Within The Brain Flashcards Preview

Endocrine System > Endocrine Glands Within The Brain > Flashcards

Flashcards in Endocrine Glands Within The Brain Deck (16):
1

The pineal gland location

Small pine-cone shaped gland hanging from the roof of the third ventricle (middle) of the brain.
The pituitary, or hypophysis, is divided into 2 lobes:
Anterior pituitary
Posterior pituitary

2

Hypothalamus

Part of the brain that conrols the production and secretion of hormones by the pituitary gland

3

The pituitary gland function

Secretory product is melatonin.
The mater gland - secretes 9 hormones that regulate most other endocrine glands in the body.

4

Pituitary-hypothalamic Relationships
Posterior pituitary gland:

A downgrowth of hypothalamic neural tissue
Neural hormones stored in capillary beds/axon terminals
- oxytocin
- ADH

5

Pituitary-hypothalamic relationships
Anterior pituitary gland

Hypothalamus controls the release of hormones by the anterior pituitary gland

6

Oxytocin

- stimulates concentration of smooth muscle in uterus
Secretion at birth (labour) and during breast feeding
Also released by males

7

Anti-diurectic hormone (ADH)

-released in response to:
Decrease in blood volume
Decrease in blood pressure
Increase blood concentration
- causes kidney to reabsorb H2O , reduces sweating and constriction of arterioles

8

Pituitary-hypothalamic relationship - anterior pituitary gland

Hypothalamus controls the release of hormones by the anterior pituitary gland

9

Hormones of the pituitary gland

- growth hormone
- thyroid stimulating hormone
-adrenocorticotropic hormones
- prolactin
- follicle stimulating hormone
-luteinizing hormone
- melanocytes stimulating hormone

10

Growth hormone (GH)

Promotes protein synthesis &a growth of body cells
Influences carbohydrate and fat metabolism

11

Thyroid stimulating hormone

Controls the production and release of thyroid hormone by the thyroid gland

12

Adrenocorticotropic hormone

Controls hormone production and release by the adrenal cortex

13

Prolactin

Starts/maintains milk production

14

Follicle stimulating hormone

Woman: stimulates the development of the ova and production of oestrogen

Men: stimulates sperm production

15

Luteinizing hormone

Woman: stimulates ovulation, formation of corpus luteum & secretion of progesterone

Men: stimulates the development of interstitial cells of testes & production/ s creation of testosterone

16

Melanocyte stimulating hormone

Controls production and secretion of melanin