Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

animal biology > the nervous system > Flashcards

the nervous system Flashcards

1
Q

what are the three types of neurons

A
  1. sensory neurons
  2. motor neurons
  3. inter neurons
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is the function of the sensory neuron

A

transmits impulse from sensory organs to the CNS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what is the function of motor neurons

A

sends impulses from the CNS to specific muscles/ organs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what is the function of interneurons

A

transmit impulses between sensory and motor neurons within brain or spinal cord

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

the CNS is surrounded by a shock absorbing fluid called _______ ______ (CSF)

A

cerebrospinal fluid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what is the advantage of keeping the circulating blood separate from the brain and spinal cord tissues

A

it gives the brain and spinal cord some protection from changes to blood composition, toxins and pathogens

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

step one in responding to a stimulus

A

receptors detect a stimulus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

step two in responding to a stimulus

A

the impulse is sent along the sensory neuron to the spinal cord

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

step three in responding to a stimulus

A

the CNS integrates the information and, if necessary sends it to the brain for processing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

step 4 in responding to a stimulus

A

impulse is sent from the CNS along the motor neurons to the effector

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

step 5 in responding to a stimulus

A

the effector generates the response

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

the sympathetic nervous system-

A

prepares the body for flight flight fright and sex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

the parasympathetic nervous system-

A

prepares the body for rest and calms it down

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

parts of the body that detect stimuli and change as a result of the stimuli

A

receptors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

the type of receptor that detects the presence of chemicals

A

chemoreceptors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

the type of receptor that detects changes in temperature

A

thermoreceptors

17
Q

the type of receptor that detects mechanical changes in the environment

A

mechanoreceptors

18
Q

the type of receptor that detects the presence of light

A

photoreceptors

19
Q

the fold of skin that covers the eye to clean and protect it

A

eyelid

20
Q

the transparent covering on the eye that protects it and help to converge light rays that enter the eye

A

cornea

21
Q

the white part of the eye that is made of collagen that provides protections dan support

A

sclera

22
Q

the layer of light sensitive cells at the back of the eye that detect rays that are focused by the cornea and lens

A

retina

23
Q

the layer of blood vessels with a black pigment that nourishes the eye and absorbes light

A

choroid

24
Q

the ring of muscles that is coloured. it controls the amount of light entering the eye

A

iris

25
Q

the hole in the middle of the iris that allows light to enter the eye

A

pupil

26
Q

the hole in the middle of the iris that allows light to enter the eye

A

pupil

27
Q

the structure in the eye that is transparent and can change shape that focuses light onto retina and focus objects

A

lens

28
Q

the structure in the eye that is attached to the underside of the lens and produces aqueous humour and helps focus by altering shape of lens

A

ciliary body

29
Q

the structure in the eye that is located behind the lens that give the eyeball its shape

A

vitereous

30
Q

the structure in the eye that is found behind the cornea and provides nutrients to the cornea and lens

A

aqueous humour

31
Q

the structure in the eye that is found in the lateral side of the eye and helps orientate the pupil away from the centre of the body

A

lateral rectus muscles

32
Q

the structure in the eye that is found on the medial side of the eye which orientates the pupil towards the centre of the body

A

medial rectus muscle

33
Q

the spot located in the macula which has a high density of cone cells. gives sharp central vision and is where light is focused into

A

fovea

34
Q

the blind spot where there are no photoreceptors where the optic nerve leaves the eye

A

optic disk

35
Q

the bundle of fibres that relay information from the retina and fovea to the brain

A

optic nerve

36
Q

the photoreceptor of the retina that is sensitive to light and can function in dim light/darkness

A

rods

37
Q

the photoreceptor of the retina that work best in higher light intensity and allow some species to see in colour

A

cones

animal biology (21 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions