components, functions, and foramen Flashcards by Tobias Rumschlag

Olfactory foramen

cribiform plate

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Olfactory components

SVA- nasal mucosa (smell)

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Optic foramen

Optic foramen (canal)

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Optic components

SSA- retina

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Oculomotor foramen

sup. orbital fissure

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Oculomotor components

GSE- eye muscles: inf, sup, and medial rectus. inf oblique

GVE- cilliary muscle and sphincter pupillae

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Trochlear foramen

sup. orbital fissure

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Trochlear components

GSE- superior oblique

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CN with parasympahetic

3, 7, 9, 10

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Orbital muscle innervation

LR6(SO4) 3

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Trigeminal foramen

Opthalamic branch: superior orbital fissure
Maxillary: foramen rotundum
Mandibular: foramen ovale

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Trigeminal components

GSA: opthalamic, maxillary, and mandibular cutaneous innervation of upper, middle, and lower face…mandibular has some in ear
SVE: mandibular to muscles of mastication, ant belly of digastric, myohyoid…tenso tympani and palatini

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Abducens foramen

sup orbital fissure

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Abducen components

GSE- lateral rectus

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Facial foramen

Internal auditory meatus

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Facial components

SVE: muscles of facial expression, post belly of digastric, stylohyoid, stapedius
SVA: anter 2/3 of tongue (taste)
GVE: sublingual, submandibular glands. lacrimal glands and glands in nose
GVA: sensory in soft palate
GSA: some senory in ear

Vestibulocochlear foramen

internal auditory meatus

Vestibulocochlear components

SSA- hearing and balance from cochlea and semicircularcanals ect

Glossopharyngeal foramen

Jugular foramen

Glossopharyngeal components

GVE: parotid gland
GVA: deep palatine sensory, and monitoring of bp from carotid body and sinus
GSA: small part of ear
SVA: poster 1/3 of tongue taste buds
SVE: stylopharyngeaus muscle

Vagus Foramen

jugular foramen

Vagus components

GSA: part of ear innervation
GVE: slow heart rate and increase digestion, intestinal muscles
GVA: sensory from internal abdominal organs
SVA: “lost” taste buds on back of epiglotttis and hypoglottis
SVE: larynx and pharynx muscles, cricothyroid, lev. palatini

Spinal Accessory foramen

jugular foramen (first comes into skull through foramen magnum)

Spinal Accessory components

SVE: sternocleidomastoid & trapezius muscle

Hypoglossal foramen

hypoglossal canal

hypoglossal components

GSE: tongue muscles