Download MBBS Physiology Presentations 10 Endocine Introduction Lecture Notes

Download MBBS (Bachelor of Medicine, Bachelor of Surgery) 1st Year, 2nd Year, 3rd Year and Final year Physiology 10 Endocine Introduction PPT-Powerpoint Presentations and lecture notes


Endocrine system maintains homeostasis

Endocrine glands are ductless glands which

secrete secretions, hormones directly into

the blood stream

Hormones are chemical substances that

transfer information from one set of cells

into the other.
The word hormone is derived from a Greek

word "Hormaein" ? to excite or set in motion

The term "Hormone" was first used by

E.H.Starling in 1905 to describe Secretin

Target organs: express receptors that bind

the specific hormones to initiate a cellular

response

In the dark ages, victors of battle used to eat

the organs (brain, heart, gonads) as they

considered them to have powers.

Aristotle noted the behavioral and physical

effects of castration of roosters

Charles Brown Sequard, French physician

gave the concept of endocrine replacement

therapy

Bayliss and Starling, first described hormone -

Secretin
Change in cell function
Control of growth and development
Alteration in body mass and its composition
Reproductive functions
Digestion, utilization and storage of nutrients
Regulation of volume and composition of

fluid compartments

Behavioral changes
Control of senescence

Proteins or peptides:

Insulin

Secretin

IGF (Insulin like Growth

Glucagon

Factors)

VIP

LH

GIP

FSH

ANP

TSH

Calcitonin

HCG

CCK

GH

ADH

Prolactin

Inhibin

HPL

Somatostatin

PTH

ACTH
Amino Acid

Steroid Hormones:

derivatives:

Glucocorticoids

Epinephrine

Mineralocorticoids

Norepinephrine

Estrogen

Dopamine

Progesterone

Serotonin

Testosterone

Thyroxine (T4)

1,25-

Tri-iodothyronine

Dihydroxycholecalcif

(T3)

erol
Feedback control
Neural control
Rhythmic or chronotropic control
Humoral control

Hypothalamus

Hypothalamic

hormones (RH/IH)

Ant. Pituitary

Trophic

hormones

Target organ

Physiological

effects

This post was last modified on 08 April 2022