Nervous system

Question 1

What is the PNS?

Answer 1

The peripheral nervous system

Question 2

What is the CNS composed of?

Answer 2

The Brain and the Spinal cord

Question 3

What are the two components of the PNS?

Answer 3

Somatic system and the autonomic system

Question 4

What does the somatic system do?

Answer 4

• send sensory info to the brain and spinal cord. These include:
  
  • skin, muscle, bones and joints (touch, pressure, temp and pain)
• have motor fibres that object to the skeletal muscles

Question 5

What are the main sources of info for the somatic system?

Answer 5

Vision
Audition
Olfaction
Gustration

Question 6

What is the CNS

Answer 6

Central nervous system

Question 7

What does the autonomic system do?

Answer 7

Regulates bodily functions. Including:

• breathing
• heart rate
• blood pressure
• kidney function
• digestion

Question 8

What are the two systems in the autonomic nervous system? And what do they do?

Answer 8

Sympathetic
- increases activity to prepare body for physical exertion, stressful anticipation or emergencies (fight or flight)

Parasympathetic nervous systems

• normalises or reverses the effect of the sympathetic system
• acts to conserve energy and maintain resting bodily functions

Question 9

What is the endocrine system? And what are its components?

Answer 9

The endocrine system is a bunch of glands scattered around the body that secrets hormones

It consists of:

• thyroid
• thymus
• adrenal glands
• gonads

Question 10

What controls the endocrine system?

Answer 10

The pituitary gland - which is considered the master gland

however the pituitary gland is under the control of the hypothalamus