Mod 10 - test review Flashcards
(33 cards)
1
Q
Cranial nerves order
A
- olfactory
- optic
- oculomotor
- trochlear
- trigeminal
- abducens
- facial
- vestibulocochlear
- glossopharyngeal
- vagus
- accessory
- hypoglossal
2
Q
Sensory cranial nerves
A
- olfactory
- optic
- vestibulocochlear
3
Q
Motor cranial nerves
A
- oculomotor
- trochlear
- abducens
- hypoglossal
- accessory
4
Q
mixed cranial nerves
A
- facial
- trigeminal
- glossopharyngeal
- vagus
5
Q
Olfactory
A
- smell
6
Q
Optic
A
- vision
7
Q
oculomotor
A
- superior, medial, and inferior rectus, and inferior oblique
8
Q
Trochlear
A
- superior oblique
9
Q
Trigeminal
A
- skin of face
- tongue sensation (anterior 2/3)
- muscles of mastication (only V3)
10
Q
Abducens
A
- lateral rectus
11
Q
Facial
A
- muscles of facial expression
- taste of tongue (anterior 2/3)
- lacrimal glands
12
Q
Hypoglossal
A
- tongue muscles
13
Q
glossopharyngeal
A
- stylopharyngeus
- parotid salivary gland
- all sensory of posterior 1/3 of tongue
14
Q
Vagus
A
- parasympathetic/autonomic viscera
- all sensation of pharynx
- movement of pharynx
15
Q
Vestibulocochlear
A
- hearing and balance
16
Q
- spinal accessory
A
- movement of trapezius and sternocleidomastoid
17
Q
External ear structures
A
- auricle
- external auditory meatus
- tympanic membrane
18
Q
Middle ear Structures
A
- tympanic cavity
- malleus, incus, and stapes
- auditory tube: connects middle to internal ear (round and oval window)
- tympanic membrane: connects external and middle ear
- tensor tympani muscle
- stapedius muscle
19
Q
Inner Ear structures
A
Bony labyrinth
- semicircular canals
- vestibule
- cochlea
Membranous Labyrinth
- walls and space inside the bony labyrinth
20
Q
Cochlea function
A
- turns vibrations into nerve impulses for the vestibulocochlear nerve
21
Q
Vestibule functions
A
- equilibrium: acceleration
22
Q
Semicircular canals functions
A
- equilibrium: rotation
23
Q
Lacrimal apparatus structures
A
Lacrimal gland
- supero-lateral corner of orbit
- supplies eye with lacrimal fluid
Lacrimal sac
- lacrimal fluid drains here
Nasolacrimal duct
- drains from lacrimal sac
24
Q
Fibrous layer of eye
A
- external layer
- sclera: tough outer layer covering the eye, protection
- cornea: continuation of sclera, transparent, allows light into eye, fixed lens for focusing
25
Vascular layer of eye
- middle layer
- choroid: pigmented vascular layer, melanin helps absorb light, posterior 2/3 of eye
- ciliary body/muscles: surround the lens and control lens for shape for precise focusing (near/far vision)
- iris: colored part of eye, regulates light entering eye, controls pupil diameter, anterior portion of layer
26
Retinal layer of eye
-
- deepest layer
- retina: converts light to nerve impulses
- optic nerve: transmits nerve impulses to the brain
27
Structures in Retina
Pigment layer
- melanocytes
- absorbs light and keep it from scattering
- superficial to neural layer
Neural layer
- nervous tissue with photoreceptor cells
- rod: dim light
- cones: bright light and color
28
Macula lutea
- areas of concentrated cone cells posterior
29
Fovea Centralis
- area of only cone cells in center of macula lutea
- highest visual activity
30
Optic Disc
- blind spot where optic nerve attaches
- no photoreceptor cells
31
Focusing on near and far things
Lens
- adjust focus on near items (accommodation)
- becomes more spherical
- ciliary muscles contract to change shape
- distance vision is out natural state
32
Structures found in the vascular layer of the eye
- choroid
- ciliary body and muscles
- iris
- pupil
33
What changes the shape of the pupil
sphincter papillae
- contract to make pupil smaller
- controlled by parasympathetic nervous system
Dilator pupillae
- low light and high stress
- contracts to make pupil larger
- sympathetic innervation
