biopsychology

Question 1

what is the perioheral nervous system

Answer 1

a system that transmits messages via millions on neurons to and from the CNS. It’s divided into the “autonomic” and “Somatic” nervous system.

Question 2

what does the autonomic nervous system do

Answer 2

The ANS Governs vital functions in the body such as breathing, heart rate, digestion, sexual arousal and stress responses. it has an involuntary effect

Question 3

whatbis the ANS split into

Answer 3

The “Sympathetic nervous system” which activates internal organs and increases bodily activities
Ths “parasympathetic nervous system” which relaxes internal organs and decreases activites

Question 4

what is the somatic nervous system?

Answer 4

it transmits information from receptor cells in the sense organs to the CNS. Its divided into recieves information from the CNS that directs muscles to act. has a voluntary effect

Question 5

Types on neuron: Sensory

Answer 5

• It carries the nerve impulses from the sensory receptors to the spinal cord/ brain. (From PNS to CNS)
• usually located near the bodies surface.
• length of axon is short
• length of dendrite is long

Question 6

Types of neuron relay

Answer 6

-It allows the sensory and motor neurons to comunicate with each other (most common neuron)
-found in the brain, spinal cord and visual system
axon is short
dendrite is short

Question 7

types of neuron motor

Answer 7

• it carries nerve impulses from the spinal cord and brain to the effectors( muscles and glands) (from CNS to PNS)
• The axons are directly or indirectly linked to muscles
  axon is long
  dendrite is short

Question 8

how to tell the difference between the neurons

Answer 8

Relay is always the flat/ squashed neuron
Motor neuron has its cell body inside the cell whilst the sensory neurons cell body is outside on the cell