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Anatomy > 10 Sensory (Lecture) > Flashcards

10 Sensory (Lecture) Flashcards

0
Q

3 types if maechanoreceptors

A

Baroreceptors-blood vessels monitors BP Tactile- touch Proprioceptors- stretch receptors at a joint

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1
Q

Mechanoreceptors

A

Respond to physical force applied to the body

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2
Q

Thermoreceptors

A

Respond to temperature changes

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3
Q

Chemoreceptors

A

Respond to specific chemicals

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4
Q

2 types of chemoreceptors

A

Osmoreceptors -particle concentration in the blood Nociceptors- pain damage to body can cause ATP to leak into blood stream causing pain

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5
Q

Photoreceptors

A

Respond to light

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6
Q

Gustation

A

Taste

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7
Q

Lingual papillae

A

Peg like structures on surface of tongue 4 types

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8
Q

Circumvallate papillae

A

Largest of the 4. Posterior of tongue. 7-12 total. Contain many taste buds.

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9
Q

Fungiform papillae

A

Intermediate sized. Most numerous with a taste bud. Can be seen with eye.

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10
Q

Foliate papillae

A

Lateral and posterior in the tongue. Contains taste buds

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11
Q

Filiform papillae

A

Smallest of the 4 and most numerous. DO NOT contain taste bud.

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12
Q

Tastants

A

Any chemical that a taste bud can detect. Must dissolve in saliva or it will not be tasted.

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13
Q

4 primary taste sensations

A

Sweet sour salty bitter

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14
Q

Olfactory receptors are located

A

In the roof of the nasal cavity. Holes in the cribriform plate are smell foramen

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15
Q

Olfactory gland

A

Makes mucus

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16
Q

Vomer nasal organ VNO

A

Just post to nose maybe free one receptor

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17
Q

Oderants

A

A chemical that stimulates an olfactory receptor. Must dissolve in mucus or it cannot be smelled.

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18
Q

Adaptation (smell)

A

Smell receptors adapt very quickly. You can only smell new smells.

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19
Q

What type of receptors replace them selves

A

Taste and smell

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20
Q

Auricle (pinna)

A

Flap of tissue with grooves and ridges that directs sound toward the ear canal.

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21
Q

Ceruminous glands

A

Produce ear wax (outer ear)

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22
Q

Tympanum

A

Ear drum converts sound pressure waves into mechanical motion (vibration).

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23
Q

Auditory ossicles

A

Transmit vibration to the choclea

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24
Q

What are the 3 occicles

A

Malleous, incus, stapes

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25
Q

Auditory eustation tubes

A

Connects to the throat equalizes air pressure

26
Q

Bony labyrinth

A

Entire snail body shell and antenna

27
Q

Cochlea

A

Snail contains sensory receptors for hearing

28
Q

Scala

A

Fluid filled ducts within the 3 coils

29
Q

3 types of Scala

A

Scala vestibuli- largest and longest Scala media- contains organ of corti Scala tympani

30
Q

Vestibule

A

Includes maculae, saccule, utricle. Responsible for balance. Senses gravity and linear acceleration.

31
Q

Oval window

A

Membrane covered opening that leads from the middle ear to the vestibule of the inner ear.

32
Q

Round window

A

Opening in the inner ear that is closed off to the middle ear

33
Q

Semicircular canals

A

Detect head movement

34
Q

Cristae ampullaris

A

Senses angular acceleration and deceleration.

35
Q

Ear structures in order

A

External ear - Auricle, external acoustical meatus Middle ear - tympanic membrane, ossicles (malleous, incus, stapes), oval window. Inner ear - round window, vestibule, semicircular canals, cochlea, bony labyrinth, eustation tube

36
Q

Conjunctiva

A

Inside of eyelids helps lubricate eyes.

37
Q

Lacrimal apparatus

A

Tear production and drainage

38
Q

Eye muscles

A

Lateral rectus - pulls eye lateral Medial rectus - pulls eye medial Superior rectus - pulls eye up Inferior rectus - pulls eye down Obliques - rotates eyes

39
Q

Review orbital bones

40
Q

Fibrous layer of the eye

A

Sclera, and cornea

41
Q

Vascular layer if the eye

A

Choroid, layer that holds vessels Iris (intrinsic muscle) smooth muscle that controls the size of the pupil. Pupil - opening

42
Q

Neural layer of the eye ( retina )

A

Contains photo receptors

43
Q

Anterior cavity

A

Under the cornea contains the iris and lens

44
Q

Anterior chamber

A

From cornea to iris

45
Q

Aqueous humor

A

Watery fluid that fills the anterior cavity

46
Q

Scleral venous sinuses

A

Drain aqueous humor out of the eye ( if defective glaucoma)

47
Q

Posterior chamber

A

Iris to the back of lens

48
Q

Posterior cavity

A

Everything behind the len

49
Q

Vitreous humor

A

Gel that fills the posterior cavity

50
Q

Lens accommodation

A

A change in the shape of the lens

51
Q

Ciliary muscles ( intrinsic )

A

Pull on lens to change it’s shape

52
Q

Ciliary body

A

Suspensory ligaments white threads that pull on lens and also aques humor is made by the ciliary body

53
Q

Retina

A

Innermost layer contains photoreceptors.

54
Q

Macula lutea (of retina)

A

Dark spot in the center of the back of the eye

55
Q

Fovea centralis (of retina)

A

This is the center of the macula has the highest density of photo receptors.

56
Q

Optic disc

A

Light spot where optic nerve exits the eye, no photo receptors

57
Q

3 primary colors of vision

A

Red blue green

58
Q

Cones

A

Bright light receptors (color vision)

59
Q

Rods

A

Dim light receptors black and white vision

60
Q

Eyes convert?

A

Light to electricity

61
Q

Optic chiasim

A

Where optic nerve partially crosses over Temporal side does not crossover Nasal side does crossover

62
Q

Occipital lobe

A

Constructs a visual image

Anatomy (30 decks)

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