nervous system and endocrine system

Question 1

what is the central nervous system made up of

Answer 1

brain and spinal cord

Question 2

what is the cns responsible for

Answer 2

responsible for relfex actions e.g pulling away from fire

Question 3

what is the peripheral ns made up. of

Answer 3

neurons outside the brain and spinal cord

Question 4

what is the pns divided into

Answer 4

autonomic ns and somatic ns

Question 5

what does the autonomic ns do

functional

Answer 5

governs automatic , vital bodily functions e.g heart rate

• is involuntary movements

Question 6

what does the somatic ns do

functional

Answer 6

• controls voluntary muscle movement based on sensory information
• is under conscious control

Question 7

what does automatic ns do

structural

Answer 7

can be divided further into sympathetic and parasymaptheic pathways

Question 8

what does the somatic ns do

structural

Answer 8

can’t be divided into further pathways

Question 9

what is the ans sympathetic

Answer 9

• flight or flight
• increase heart rate
• increase breathing rate
• inhibits saliva production

Question 10

what is ans parasympathetic

Answer 10

• rest and digest
• decrease heart rate
• decrease breathing rate
• stimulates saliva production

Question 11

functions and structure of motor neurons

Answer 11

function -
they connect the cns to the effectors such as muscles or glands, allowing movement

structure
- they have short dendrites and long axons

Question 12

functions and structure of relay neurons

Answer 12

function
- these connect the sensory neurons to the motor neurons

structure-
they have short dentures and short axons

Question 13

functions and structure of sensory neurons

Answer 13

function
- carry messages from the senses (pns) to the cns

structure -
cell body in the middle, they have long dendrites and short axons