Topic 8

Question 1

Order of endocrine organs in body

Answer 1

Pineal Gland, Hypothalamus, Pituitary Gland, Thyroid Gland, Adrenal glands, Pancreas, Testes and Ovaries

Question 2

Function Pineal gland

Answer 2

Receives information about the state of light and secrete melatonin

Question 3

Hypothalamus function

Answer 3

The link between the nervous system and endocrine systems through its connection with Pituitary gland.

Question 4

Pituitary Gland.

Answer 4

THE MASTER GLAND. Secrets hormones into the bloodstream eg ADH and Growth Hormone

Question 5

Thyroid gland

Answer 5

Regulates several processes such as growth, metabolism and development by the releases of thyroxin

Question 6

Adrenal Gland

Answer 6

Produces adrenaline which regulates metabolism, immune system and blood pressure

Question 7

Pancreas

Answer 7

Releases hormones into the blood stream eg glucagon and insulin which regulate blood glucose levels

Question 8

Testes

Answer 8

Secretes testosterone

Question 9

Ovaries

Answer 9

Secretes estrogen and progesterone

Question 10

Role of Circulating hormones

Answer 10

Hormones which travel around the body in the blood eg adrenaline and testosterone

Question 11

Role of local hormones

Answer 11

Hormones which act on neighboring cells without entering the bloodstream eg glucagon

Question 12

Role of hormones

Answer 12

Hormones are secreted by endocrine glands to regulate and maintain bodily functions

Most often release of hormones occur in short burst however some are released over a longer period of time to stimulate permanent change

Question 13

How are circulating hormones regulated

Answer 13

They are controlled by complex feedback mechanisms which can be influenced by

Signals from nervous system, chemical changes in the blood and other hormones like Growth Hormone

Question 14

Negative feedback

Answer 14

Reveres systems in the controlled conditions. Most in human body are

Question 15

Role of Endocrine System and Nervous system in regulating circulatory hormones

Answer 15

Endocrine System- Produces and secretes the hormones required

Central Nervous System- Signals inputs and outputs from the control centre done by nerve impulse or chemical signals

Question 16

Relationship between the Pituitary Gland and Hypothalamus

Answer 16

Hypothalamus and Pituitary gland together responsible for homeostasis.

The hypothalamus is in control of the Pituitary Gland

Neurohormones- From the hypothalamus influence the Pituitary Gland stimulating the gland to work. Also nerve impulses from the hypothalamus.

The Pituitary Gland secretes hormones such as ADH that help regulate body functions