control and regulate

Question 1

how are sense organs important to an organisms environment

Answer 1

key the organisms surroundings

Question 2

what are the five sense organs and their stimulus

Answer 2

skin - pressure, temperature, movement 
tongue- chemical substances sweet, sour, slaty, bitter
eye- light 
nose- chemical odours 
ear- sound

Question 3

receptor for the tongue and nose

Answer 3

chemoreceptor- tongue & nose

Question 4

define stimulus, receptor & respons

Answer 4

stimulus - information that the body receives causing it to respond

receptor- structure that detects a stimulus or changes in the normal functioning of the body

respons- an action or movement due to a stimulus

Question 5

explain the function of the nervous system

Answer 5

transmit signal between the brain & the rest of the body, including internal organs

Question 6

list the parts of the nervous system

Answer 6

central nervous system is made of the brain and spinal cord that extend to all parts of the body

peripheral nervous system made of nerves that branch from the spinal cord extending to the rest of the body.

Question 7

explain the overall function of the neurons

Answer 7

to pass signals through the body

Question 8

explain how neutrons function

Answer 8

dendrites-> cell body-> axons(covered in myelin sheath)->axon terminals-> synapse-> neurone transmit

Question 9

what travels through neurons

Answer 9

nerve impulse

Question 10

different types of neurons

Answer 10

motor, sensory and interneurons

Question 11

what’s the difference of the three types of neurones

Answer 11

sensory- carry signals from the outside of the body

motor - carry signals from the central nervous system to the outer body

interneurons- connect various neurons within the brain and spinal cord

Question 12

diagram of stimulus and respons

Answer 12

stimulus -> receptor-> control center-> affector-> respons

Question 13

what is automatic

Answer 13

involuntary or unconscious action

Question 14

define reflex arc

Answer 14

when actions need to be carried out quickly, meaning it doesn’t pass fully through to the brain and stops at the spinal cord

Question 15

endocrine glands

Answer 15

release hormones into bloodstream allowing it to pass in cells all around the body

Question 16

endocrine hormones

Answer 16

control mood. growth, development, metabolism & reproduction

Question 17

parts of the endocrine system

Answer 17

pancreases
testical 
adrenal glands 
pituitary 
pineal gland 
ovary (when pregnant)

Question 18

define homeostasis

Answer 18

state of balance among the whole body system for the body to survive and function

Question 19

is the nervous system faster than the endocrine system?

Answer 19

yes

Question 20

how do endocrine system and nervous system send their signals differently

Answer 20

endocrine send it through the bloodstream & nervous through the spinal cord to brain

Question 21

what is somatic

Answer 21

voluntary actions (e.g walking)

Question 22

what is reflex arc

Answer 22

an instinct caused by adrenal

Question 23

receptor for the ear

Answer 23

mechanoreceptor- ear

Question 24

receptor for the eye

Answer 24

photoreceptor

Question 25

receptor for the skin

Answer 25

thermoreceptor

Question 26

receptor for the ear

Answer 26

mechanoreceptor- ear