Hormonal Sectretion Flashcards Preview

Abdominal And Pelvis Anatomy > Hormonal Sectretion > Flashcards

Flashcards in Hormonal Sectretion Deck (21):
1

Name 6 of the endocrine glands?

Pituitary
Thyroid
Parathyroid
Isles of langerhans
Adrenal
Gonads

2

Where is erythropoietin made and what’s its purpose?

Made in kidney, increases rbc

3

What hormone does the heart produce? And what’s its purpose

Atrial natreric peptide, increases na2 secreted by kidney

4

Where is Von Willie brand factor made and what does it do?

Vascular endothelium and used for blood clotting

5

What are the ways hormones can be delivered around body?

Endocrine
Neauroendocrine
Paracrine
Autocrine

6

What type of hormones are produced by hypothalamus

Protein/peptide

7

What are the 3 types of hormones

Peptide
Steroid
Amines

8

What are the 2 main types of amines?

Thyroid- behave like steroids
Catecholamines- adrenaline, noradrenaline act like protein hormones

9

Hat can tyrosine be made into?

Thyroxine
Adrenaline

10

What is dimerisation? And where does it occur

Steroid hormone receptors
2 receptor bits get together, attach onto coding part of dna, change dna replication ... producing an affect

11

What’s the origin of the posterior pituitary

Invagination of forebrain- neuronal

12

What’s the origin of the anterior pituitary

Outgrowth of buccaneer cavity, Rathske pouch- glandular

13

What’s an infudibulum?

Stalk that joins the 2 pituitary

14

How does the posterior pituitary work?

Has Loads of axons, hormone stored in nerve ending, ending of it reaches the pituitary vein where its released into the blood

15

What are the 2 main nucleus’s in the posterior pituitary and what do they produce?

Supraoptic-adh
Paraventricularr- oxytocin and adh

16

How does the anterior pituitary work?

No neaural connection, hormone released by hypothalamus and travels to anterior via blood vessels, once inside, travels down portal blood vessels- dense network of capillaries

17

What are the 2 main arteries of the pituitary portal blood system

Superior and inferior hypophseal

18

What’s the accumulation of hormones in axon

Herring bodies

19

What are pituicytes

Glial like cells in posterior

20

Somatostatin has a negative feedback affect on what 2 cells

Somatotroph and thyrotroph

21

Dopamine has -ve feedback affects on...

Lactotroph