Lab Quiz 5 Flashcards
CN I
Olfactory
Special sensory
Foramina = olfactory foramina
Function: olfactory epithelium
CN II
Optic
- special sensory
Foramen: Optic foramen
Function: retina of eye
CNIII
Occulomotor
- motor
Foramina: - superior orbital fissure
- Internal Acoustic meatus
Function: - 4 extrinsic of eye
- 3 intrinsic of eyeCN IV
Trochlear
motor
Foramina: - superior orbital fissure
Function: - 1 extrinsic of eye
CN V
V 1
Trigeminal
V1 - opthalmic - sensory - upper 1/3 of face
- superior orbital foramen
- duperior orbital fissure
CN V
V 2
V2 - maxillary - sensory - middle 1/3 of face
- foramen rotundum - infraorbital foramen
CN V
V3
V3 - mandibular - sensory - 1 motor = lower 1/3 of face- muscles of mastication, anything attached to mandible
Foramen: - foramen ovale
- Mandibular foramen
- mental foramen
- foramen ovale (motor)
CN VI
Adducens
- motor
Foramen: Superior orbital fissure
Function: 1 extrinsic M.S. of eye
CN VII
Facial
- motor and sensory
Foramen: - Foramen Rotundum
- Stylomastoid formen
Function: - Muscles of facial expression
- Taste buds on anterior 2/3 of tongueCN VIII
Vestibulocochlear
- special sensory
Foramen: Foramen ovale
Function: - inner ear ( cochlea and vestibular apparatus)
CN IX
Glossopharyngeal
- special sensory
- motor
Foramen: jugular foramen
Function: - taste buds of posterior
1/3 of tongue
- muscles of PharynxCN X
Vagus - special sensory - sensory - motor Foramen: - Jugular foramen Function: - Skinn across the throat and external acoustic meatus - taste/gag reflex - smooth muscle of pharynx and gut
CN XI
Accessory (spinal)
- motor
Foramen: - jugular foramen
- Foramen Magnum
Function: Muscles of pharynx, trapezius, and sternocledomastoidCili
Hair like
Dorsi
Top surface
Endo
within
Gloss
Tonuge
Infra
Below
Inter
Between
Intra
within
Ling
Tonuge
Neuro
nerve
Obli
slanting
Oculo
eye
peri
surrounding
Presby
far
supra
above
troch
pulley
What kind of physical stimuli is necessary for smell to work?
Olfactory sense: (chemical: smell) = olfactory epithelium - superior nasal concha - nasal passage
What kind of physical stimuli is necessary for taste to work?
Gustatory sense: (chemical: taste) gustory cells in taste buds (dorsum of tounge)
What kind of physical stimuli is necessary for vision to work?
Visual sense (electromagnetic radiation: vision) - Rods and Cones in retina of eye
What kind of physical stimuli is necessary for movement/balance to work?
Equilibrium (Inertia: movement/balance) hair cells in crista in semicircular canals (inner ear)
What kind of physical stimuli is necessary for acceleration/position to work?
Gravity (inertia: acceleration/position) hair cells in maculae in the utricles/saccules (inner ear)
What kind of physical stimuli is necessary for acceleration/position to work?
Gravity (inertia: acceleration/position) hair cells in maculae in the utricles/saccules (inner ear)
What is the function of the conchea/meati in the passage?
increases the surface area in the nasal cavity and prevents dehydration
What are the 3 types of epithelium that cover the 3 nasal passage?
superior nasal conchae - olfactory epithelium
middle nasal conchae - respitory epithelium
inferior nasal conchae - (easily broken) - respitory epithelium
Trace the passage of tears from the lacrimal gland to the nostrils
lacrimal gland — lacrimal duct — conjuctiva -lacrimal caruncle — lacrimal puncta — Lacrimal canliculi — nasolacrimal sac — nasolacrimal duct — nasal meatus — Nasal cavity
What structures are involved when vibration (sound) is transfered from the tympatic membrane to the cochlea?
Tympatic membrane - malleus, incus, stapes, oval window cochlea, round window
function of the stapedius muscle
- decrease sensitivity of hearing
- dampens large vibrations of stapes
- protect oval window
Function of the Tensor tympani muscle?
- Limits movement
- increases tension on eardrum to prevent damage to inner ear from loud noises
What is the function of Pinna?
Collects sound waves
What is the name of the clusters associated with for gravity detection/acceleration?
- masculae
What is the name of the clusters associated with for Head movement?
- capula
What is the name of the clusters associated with for hearing?
- Organ of Corti
function of the Lateral rectus and the CN ?
Moves eye laterally
Abducens
Functions of the Medial rectus and the CN?
Moves eye medially
- occulomotor
function of Superior rectus and the CN?
moves eye superior
- Occulomotor
Function of the inferior rectus and the CN?
moves eye inferior
- occulomotor
What is the function of the superior oblique and the CN?
moves eye inferior/aBduction ( depresses and lateral)
- trochlear
What is the function of the inferior oblique and the CN?
moves eye Superior/aBduction ( elevates and lateral)
What are the 3 layers of the eye?
Fibrous tunic / layer
Vascular tunic/ layer
Neural tunic/ layer
What is the function of the fibrous tunic of the eye?
- mechanical support
- physical protection
- attachment site for occulomotor
- contains focusing process
What is the function of the Vascular tunic of the eye?
Provide route for blood and lymphatic supplying tissues
- regulating light entering
- secreting and absorbing aqueous humor
- controlling the shape of the lens
What is the function of the neural tunic of the eye?
- photorecepters that respond to light
- supporting cells and neurons that perform preliminary processing
- intergrating of visual info
- blood vessels that supply the tissues lining the posterior cavity
