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Anatomy Lec > Special Senses part 2 > Flashcards

Special Senses part 2 Flashcards

(79 cards)

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1
Q

The ear houses two senses which are

A

Hearing
Equilibrium

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2
Q

equilibrium means

A

balance

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3
Q

The Receptors of the ear are called

A

mechanoreceptors

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4
Q

The ear is divided into three areas

A

Outer (external) ear
Middle ear
Inner ear

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5
Q

It Involved in hearing only and is where the Pinna and external auditory canal is located

A

External Ear

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6
Q

2 Structures of the external ear
are

A

Pinna (auricle)
External auditory canal

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7
Q

A Narrow chamber in the temporal bone that is Lined with skin.

A

External Auditory Canal

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8
Q

Ceruminous glands are also called

A

wax glands

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9
Q

The external auditory canal has ____________ _____ that are present

A

Ceruminous glands

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10
Q

The external Auditory canal Ends at the

A

Tympanic membrane

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11
Q

The Middle Ear is also known as the

A

Tympanic cavity

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12
Q

An Air-filled cavity within the temporal bone that is also Only involved in the sense of hearing

A

Middle ear/Tympanic Cavity

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13
Q

The opening from the ________ _____ is covered by the tympanic membrane

A

auditory canal

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14
Q

It connects the middle ear with the throat

A

Auditory tube

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15
Q

Allows for equalizing pressure during yawning or swallowing or this tube is otherwise collapsed.

A

Eustachian tubes

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16
Q

Three bones span the tympanic cavity are

A

Malleus (hammer)
Incus (anvil)
Stapes (stirrip)

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17
Q

Vibrations from eardrum move the

A

Malleus

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18
Q

These bones transfer sound to the ______ ____

A

inner ear

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19
Q

Inner Ear is also known as the

A

Bony Labyrinth

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20
Q

It includes sense organs for hearing and balance

A

Inner ear or Bony Labyrinth

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21
Q

The inner ear is Filled with

A

perilymph

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22
Q

A maze of bony chambers within the temporal bone of the inner ear are

A

Cochlea
Vestibule
Semicircular canals

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23
Q

A maze of bony chambers in the inner ear are within the

A

Temporal bone

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24
Q

It is Located within the cochlea which is a Gel-like tectorial membrane is capable of bending hair cells

A

Organ of Corti

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25
The hair cells on the basilar membrane =
mechanoreceptors
26
They are attached to hair cells which transmits nerve impulses to auditory cortex on temporal lobe
Cochlear nerve
27
This is where vibrations from sound waves move
Tectorial Membrane
28
They are bent by the tectorial membrane
Hair cells
29
An action potential starts in the
Cochlear nerve
30
the Receptor cells for the equilibrium are in two structures
Vestibule Semicircular canals
31
Equilibrium has two functional parts
Static equilibrium Dynamic equilibrium
32
The receptors in the vestibule. They Report on the position of the head
Maculae
33
The Maculae Send information via the
vestibular nerve
34
In the Anatomy of the maculae, Hair cells are embedded in the
otolithic membrane
35
They float in a gel around the hair cells. They also look like tiny stones
Otoliths (tiny stones)
36
Movements cause otoliths to bend the
hair cells
37
receptors in the semicircular canals which consists of the tuft of hair cells and cupula
Crista ampullaris
38
A gelatinous cap that covers the hair cells
Cupula
39
Action of angular head movements
Dynamic Equilibrium
40
It stimulates the hair cells when there are angular head movements happening
Cupula
41
In dynamic equilibrium, An impulse is sent via the vestibular nerve to the
Cerebellum
42
The Chemical Senses are
Taste and smell
43
both Chemical Senses use
chemoreceptors
44
These receptors are Stimulated by chemicals in solution
Chemoreceptors
45
Taste has __ types of receptors
four
46
The Sense of Smell
Olfaction
47
These receptors are in the roof of the nasal cavity
Olfactory receptors
48
In the sense of smell, this is use to dissolve chemicals for detection
mucus
49
The olfactory receptors have neurons with long
cilia
50
Impulses felt by the olfactory receptors are transmitted via the
Olfactory nerve
51
Interpretation of smells is made in the
Cortex
52
It house the receptor organs of the tongue
Taste buds
53
Location of taste buds are in
Most are on the tongue Soft palate Cheeks
54
The tongue is covered with projections called
papillae
55
They are sharp with no taste buds
Filiform papillae
56
They are rounded with taste buds
Fungifiorm papillae
57
They are large papillae with taste buds
Circumvallate papillae
58
Taste buds are found on the
Sides of Papillae
59
The receptors of the taste buds are also known as
Gustatory cells
60
The gustatory cells have long microvilli called
gustatory hair
61
Gustatory Hairs are stimulated by chemicals dissolved in
saliva
62
several cranial nerves that carries impulses to the gustatory complex
Facial nerve Glossopharyngeal nerve Vagus nerve
63
The Impulses of the taste buds are carried to the
Gustatory complex
64
The 4 Taste Sensations are
Sweet receptors Sour receptors Bitter receptors Salty receptors
65
Sweet receptors senses
Sugars Saccharine Some amino acids
66
Sour receptors senses
Acids
67
Bitter receptors senses
Alkaloids
68
Salty receptors senses
Metal ions
69
the Special Senses are developed in early
embryonic development
70
Organ that are outgrowths of the brain
eyes
71
All special senses are functional at
birth
72
Swallowing or yawning opens this tube and allows air to flow into or out of the middle ear. This helps equalize pressure on either side of the ear drum
eustachian tube
73
the smallest bone in the body. It convey sound vibrations to the bone's flat base.
Stapes
74
transmits vibrations from the malleus to the stapes
Incus
75
Contain fibers from the lateral side of the eye on the same side and the medial side of the opposite eye
Optic tracts
76
Location where the optic nerves cross o Fibers from the medial side of each eye cross over to the opposite side of the brain
Optic chiasma
77
fluid contained within the bony labyrinth, surrounding and protecting the membranous labyrinth
Perilymph
78
a physiological fluid that fills the inner ear's labyrinth and serves crucial sensory functions.
Endolymph
79
The receptors og the organ of corti are hair cells on the _______________ ____________
Basilar membrane

Anatomy Lec (18 decks)

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