Coordination and response

Question 1

what does the nervous system do?

Answer 1

enables humans to react to their environment and coordinate their behaviour and regulate bodily functions

Question 2

what is a nervous system?

Answer 2

organ system

Question 3

what is the central nervous system?

Answer 3

the brain and spinal chord

Question 4

what is the peripheral nervous system?

Answer 4

nerves, muscles and glands outside of this

Question 5

what does the peripheral nervous system change?

Answer 5

it changes in the internal and external environment and effect changes in the body

Question 6

nervous system - signal?

Answer 6

electrical

Question 7

endocrine system- signal?

Answer 7

chemical

Question 8

nervous system- transmission?

Answer 8

neurons

Question 9

endocrine system- transmission?

Answer 9

blood

Question 10

nervous system- speed?

Answer 10

fast

Question 11

endocrine system- speed?

Answer 11

slow

Question 12

nervous system- duration?

Answer 12

short term

Question 13

endocrine system- duration?

Answer 13

long term

Question 14

reflex?

Answer 14

• prevents damage done to the organisms and death
• fast responses

Question 15

reflex arc?

Answer 15

a pathway that the reflex action takes

Question 16

stimulus?

Answer 16

something in the outside environment

Question 17

receptor?

Answer 17

a cell that detects change

Question 18

coordinator?

Answer 18

the cell that decides what the body should do

Question 19

effector?

Answer 19

the muscles or glands that reacts to the change

Question 20

response?

Answer 20

what the body does to react to change

Question 21

relay neurone?

Answer 21

• short
• lots of connections
• connects the sensory to the motor

Question 22

motor neurone?

Answer 22

• long
• lots of connections
• nucleus at one end
• carries signals to the effector

Question 23

sensory neurone?

Answer 23

• long
• carries signals from the receptor to central neurone system
• nucleus in the middle

Question 24

detection - skin?

Answer 24

pressure, temp, change, pain

Question 25

detection - eye?

Answer 25

light colour

Question 26

detection - tounge?

Answer 26

chemicals in the mouth

Question 27

detection - nose?

Answer 27

chemicals in the air

Question 28

detection - ear?

Answer 28

vibrations

Question 29

what happens to your eye in bright light?

Answer 29

• closes
• radial relaxes
• circular contracts
• less light

Question 30

what happens to your eye in dim light?

Answer 30

• opens
• radial contracts
• circular relaxes
• more light

Question 31

how does the radial and circular muscle protect the eye?

Answer 31

so the light does not damage the retina

Question 32

voluntary action

Answer 32

• blinking
• skeletal muscle
• smiling
• breathing

Question 33

involuntary action

Answer 33

• any glands
• blood vessels or iris dilating
• heart beating
• sneezing

Question 34

voluntary

Answer 34

• fast
• requires thinking
• in the brain
• used for decision making