Brainscape's Knowledge GenomeTM

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


See full index

Bio Final Part 2 > Sensory > Flashcards

Sensory Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Receptor Types (4)

A

1) Chemoreceptors
2) Mechanoreceptors
3) Proprioceptors
4) Thermoreceptors

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

Receptor Types - do each respond to their own stimulus?

A

yes, except for pain

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

Receptor Types - Mechanoreceptors

A

Recognize any mechanical sensation

1) Vibration
2) Stretch
3) Touch
4) Hair follicles
5) balance

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

Receptor Types - Thermoreceptors

A

Senses heat

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

Receptor Types - Chemoreceptors`

A

1) Taste

2) Smell

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

What are Receptor Fields?

A

Areas of skin that a sensory receptor innervates

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

Receptor Fields? Does size matter of the Receptor Fields?

A

Yes, the smaller the area the more sensitive

1) Fingers
2) Cockadoo

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

Intensity

A

higher frequency - will encode for to stimulate more fibres

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

Adaptation from neurons

A

When neurons stop sending AP in response to continuous stimulus

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

Types of Adaptation from Neurons (2)

A

1) Phasic or fast- adapting receptors

2) Tonic or slow-adapting receptors

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

Types of Adaptation from Neurons - Phasic / fast-adapting receptors

A

Respond to change in stimulus

ex) touch , smell,temp

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

Types of Adaptation from Neurons - Tonic or slow-adapting receptors

A

Continuous to send AP’s in response to constant stimulus

ex) pain,vision (NON ADAPTING)

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

What is the pain receptor called?

A

Nocireceptors

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

Nocireceptors - pain receptors (3)

A

1) Mechanical Nocireceptors
2) Thermal Nocireceptors
3) Polymodal Nocireceptors

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

1) Mechanical Nocireceptors

A

responses to mechanical damage

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

Thermal Nocireceptors

A

Responses to temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Characteristics of Pain -Fast / Phasic Pain

A

1)Carried by large, myelinated A-delta fibers
2) Occurs on stimulation of mechanical and thermal
nociceptors
3) Easily located & sharp pain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Characteristics of Pain -Slow / Tonic Pain

A

1) Carried by small, unmyelinated C fibers
2) Poorly localized
3) Occurs on stimulation of polymodal nociceptors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Vitreous and Aqueous Humour of the eye- Vitreous humour (3)

A

1) Maitains shape of the eye
2) Gelatinious
3) middle of eye

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Vitreous and Aqueous Humour of the eye- Aqueous humour (3)

A

1) Provides nutrient to the cornea
2) 5mL/day
3) Infront of iris & behind cornea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Iris and Pupil - Pupil

A

Opening of the eye for light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Iris and Pupil - Iris (2)

A

1) Colour of the eye

2) Controls amount of light in via it’s contractions

23
Q

Lens of the eye, what to they do?

A

Regulate focus - where is it? Big ovul behind Iris

24
Q

Eye’s Optic Nerve

A

Transmits information to the brain

big veins leading away from eye to the brain

25
Q

Lens and Cornea -

A

Changes lens shape so image is focussed on retina Controlled by ciliary muscle and suspensory ligaments

26
Q

Lens and Cornea - Near object vs Far (2)

A

1) Lens must be flat to increase
bending of light
2) Far objects Flatter lens Less bending

27
Q

Eye Conditions - Myopia what is it and cause

A

1) Near-sighted
2) Lens is too strong or eye too long
3) CONCAVE correction

28
Q

Eye Condition - Hypermetropia or hyperopia (2)

A

1) Far sighted
2) Lens too weak or eye to short
3) CONVEX CORRECTION

29
Q

What is Emmetropia?

A

Normal vision

30
Q

Retina (2)

A

1) Cones

2) Rods

31
Q

Retina - Rods

A

Black and white vision - better in low light

32
Q

Retina Cones

A

Colour and brightness accustomed

33
Q

Retina where is it?

A

The inside of the eye - first layer back of it

34
Q

Retina - What is the Fovea?

A

1) Pinhead- sized depression in the centre of the retina

2) Cones only - most distinct vision

35
Q

What is the Macula lutea?

A

Area surrounding the Fovea

36
Q

Macular degeneration

A

Donut vision due to loss of cones and central vision

37
Q

Disorders of the Eyes and Vision (2)

A

1) Retinal Datachment

2) Cataracts

38
Q

Disorders of the Eyes and Vision - Retinal Detachment (2)

A

1) Retina separates from choroid

2) Symptoms: Flashes of light, blurred vision, loss of peripheral vision

39
Q

Disorders of the Eyes and Vision- Cataracts (2)

A

1) Lens become opaque

2) Treatment: Replace lens artificially

40
Q

Disorders of the Eyes and Vision - Colour Blindness (3)

A

1)Lack of one of the three types of cones
2) Red-Green blindness- often inherited
3) Symptoms: inability to distinguish the full
range of colors

41
Q

Three aspects of Hearing (3)

A

1) Pitch (tone) of soun
2) Intensity (loudness)
3) Timbre (quality)

42
Q

Ear Structure - Outer (3)

A

1) Pinna- visible ear
2) External Auditory Meatus - Ear Canal
3) Tympanic Membrane - Ear drum - first thing you see along the external auditory meatus

43
Q

Ear Structure- Middle ear (3)

A

1) Amplifies sound 20x30 times
2) Ear Ossicles -
3) Eustachian Tube

44
Q

Ear Structure- Middle ear - Ear Ossicle (3)

A

1) Malleus
2) Incus
3) Stapes

45
Q

Ear Structure- Middle ear - Eustachian Tube ?

A

Equalizes ear pressure - it looks like the external auditory meatus but it’s at the furthest back canal

46
Q

Ear Structure: Inner ear

A

Cochlea

47
Q

Ear Structure: Inner ear- Cochlea (2)

A

1) Contain Organ of Corti

2) Transduction of waves (ripples) to AP’s

48
Q

Organ of Corti - Receptors (3)

A

1) Hair cells
2) Gets bend as pressure waves move through the endolymph move the basilar mebrane
3) Pitch is determined by the location of the bend cells

49
Q

Bending of hairs on deflection of Basilar Membrane

A

the stecreocila (hairs) from the hair cells of the basilar membrane are embedded in the overlying tectorial membrane/ The hairs are ben when the basilar membrane is deflected in relation to the stationary tectorial membrane. This bending opens channels leading to ion movements that results in a receptor potential

50
Q

Deafness (2)

A

1) Conduction of deafness - problem amplifying sound

2) Sensory deafness - Problems with hair cells or auditory nerve

51
Q

Inner ear - Equilibrium - Vestibular apparatus

A

-Inner ear
-Balance and body
position

52
Q

What maintains your balance in your ear?

A

Vestibular apparatus

53
Q

What does the Vestibular Apparatus consist of?

A
  • Semicircular Canal

- Utricle and Saccule

Bio Final Part 2 (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions