human nervous system

Question 1

peripheral nervous system. PNS

Answer 1

send information to the CNS from the outside world and transmits messages from the CNS to muscles and glands in the body

Question 2

Central nervous system CNS

Answer 2

consist of brain and spinal cord and is the origin of all complex commands and decisions

Question 3

PNS is divided into what

Answer 3

autonomic nervous system ANS and somatic nervous system SNS

Question 4

Autonomic nervous system

Answer 4

transmit info to and from the internal bodily organs it is in-automatic so operates involuntarily

Question 5

Somatic nervous system

Answer 5

Transmit info from receptor cells in the sense organs to the CNS, receives info from the CNS that directs muscles to act

Question 6

What is the ANS divided into

Answer 6

sympathetic which prepares the body for fight or flight (eg increased heart rate) and parasympathetic which relaxes the body and returns to normal resting state (eg reduced blood pressure)

Question 7

what is CNS divided into

Answer 7

Brain which is divided into the hindbrain midbrain for brain and spinal cord which is responsible for reflex actions and controls voluntary movement

Question 8

what is the nervous system

Answer 8

specialised network of cells that communicate around the body

• collect info from the environment
• let major organs co-iron date and communicate