The Endocrine System

Question 1

What are the functions of the endocrine system?

Answer 1

sodium and water balance- blood volumes
calcium and phosphate balance- preserves extracellular fluid concentration for cell survival
energy balance and control of macronutrient utilisation and storage
responses to stress
reproduction, sexual development and growth

Question 2

What are chemical messengers?

Answer 2

glands or organs that secrete hormones

Question 3

What are glands?

Answer 3

they are ductless- they don’t have channels

secrete hormones into the bloodstream

Question 4

Structure of the endocrine system

Answer 4

Plentiful supply of blood around the endocrine gland

Question 5

What do the hormones do?

Answer 5

carried around the body to excite or inhibit activity of other organs or tissues

Question 6

Whta is a non-steroidal hormone?

Answer 6

attach to specific membrane receptors and work by a second messenger mechanism

Question 7

What is the steroidal hormone?

Answer 7

small and lipid soluble

can pass through the cell membrane of the target organ

Question 8

Role of thyroid hormones

Answer 8

Stimulating metabolism
Facilitates the breakdown of carbohydrates, proteins, fats for energy, stimulating heat and glucose production
Production of structural proteins, enzymes and other hormones
Promote growth and development in children