sensory organs and nervous response Flashcards
1
Q
what is a stimulus?
A
a detectable change in an organisms environment
2
Q
what is a sensory organ?
A
an organ that can detect a stimulus
3
Q
what are all of the sensory organs?
A
eyes ears nose tongue skin
4
Q
what do eyes detect?
A
light intensity
5
Q
what do ears detect?
A
sound waves
6
Q
what does a nose detect?
A
chemicals in the air
7
Q
what does a tongue detect?
A
chemicals in food
8
Q
what does skin detect?
A
pressure and temperature
9
Q
where are receptor cells located?
A
in the sensory organs
10
Q
what do receptor cells do?
A
detect the stimulus
11
Q
what is in the nervous system?
A
brain and spinal cord
12
Q
what is a synapses?
A
the gaps between the neurones
13
Q
what are the types of effectors?
A
muscles and glands
14
Q
what is the response of the muscle?
A
it contracts
15
Q
what is the response of the gland?
A
release hormones
