The endocrine system

Question 1

Another way to send information around the body is by using hormones
Define hormones

Answer 1

• Chemical molecules released directly into the blood, there carried into the blood to other part of the body but only affect target organs

Question 2

What do hormones control and secreted by?

Answer 2

They control things in organs and cells that need constant adjustment
- Hormones are secreted by hormonal glands, these glands make up the hormonal system.
-Hormones tend to have relatively long lasting effect

Question 3

6 examples of glands

Answer 3

-Adrenal gland
-Pituitary gland
-Ovaries
-Testes
-Thyroid
-Pancreas

Question 4

What does the adrenal gland do?

Answer 4

• This produces adrenaline which prepares the body for ‘fight or flight’ response

Question 5

What does the ovaries do?

Answer 5

• Produces oestrogen, which is involved in the menstrual cycle

Question 6

What do testes do?

Answer 6

• Produces testosterone, which controls puberty and sperm in male production

Question 7

What does the pituitary gland do?

Answer 7

• Produces many hormones that regulate body conditions
  -Sometimes called the ‘master gland’ as it acts on other glands directing them to release hormones to bring about change

Question 8

What does the pancreas do

Answer 8

produces insulin which is used to regulate the blood glucose

Question 9

What does the thyroid do?

Answer 9

• Produces thyroxine which is involved in regulating things like rate of metabolism, heart rate and temperature

Question 10

Factors of Nerve

Answer 10

• Very fast action
• Act for very short time
• Act on a very precise area

Question 11

Factors of hormones

Answer 11

• Slower action
• Act for a very long time
  -Act in a more general way