Pituitary And Hypothalamus

Question 1

Endocrine system

Answer 1

Consists of a series of different glands which produce hormones

Question 2

What is Endocrinology?

Answer 2

The study of hormones and how they can cause disease
The endocrine system consists of a series of ductless glands throughout the body, is the release hormones directly into the bloodstream

Question 3

Autocrine signaling

Answer 3

Where a cell produces a chemical that stimulates the same cell?

Question 4

Paracrine signalling

Answer 4

A chemical substance, secreted by one cell type that has an effect upon a neighbouring cell

Question 5

The Endocrine system

Answer 5

Glands release, hormones
Hormones communicate within and among local and distance cells on the nervous system
Signals received by glands, promote synthesis and release of hormones

Question 6

The anterior pituitary gland

Answer 6

Releasing and inhibitory factors from the hypothalamus, neurosecretory cells are transported within axons and are released at axon terminals
From there, they diffuse into the capillary network of the portal system, and are carried to the cells of the anterior pituitary

Question 7

The posterior pituitary

Answer 7

Oxytocin and ADH are synthesised in the hypothalamus, and released into the capillary plexus of the posterior pituitary
Doesn’t synthesise hormones
Stores to hypothalamic hormones = ADH and oxytocin

Question 8

The anterior pituitary hormones

Answer 8

Consist of glycoproteins and single chain, poly, peptide, hormones
Examples of the hormones= Glycoproteins and single chain polypeptides

Question 9

Regulation of the pituitary gland

Answer 9

The anterior pituitary is regulated by the hypothalamus that releases a series of releasing factors
There is also a series of positive and negative feedback loops regulate the whole hypothalamic –pituitary-end organ system