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Nerves and Their Description
Match the nerve to its description. It could be what it innervates, what it branches off, or another important fact about it
69
Anatomy
Undergraduate 2
08/30/2014

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Term
Pudendal nerve
Definition
Sensation penis and clitoris
Posterior scrotum and labia
Sensation anal canal
Afferent penile erection
Bulbospongiosum
Ischiocavernosus muscle
Levator ani
External anal sphincter
External urethral sphincter
Term
Pudendal nerve
Definition
From S2, S3, S4
Term
Pelvic splanchnics (parasympathetic)
Definition
From S2, S3, S4
Term
Pelvic splanchnics (parasympathetic)
Definition
Parasympathetic innervation to hindgut
Emptying urinary bladder
Internal urethral sphincter
Motility in rectum
Erection
1/3 transverse colon
Cervix
Term
Obturator
Definition
From L2, L3, L4
Term
Obturator
Definition
Sensation: skin of the medial aspect of the thigh
Motor:adductor muscles of lower extremity and pectineus
NOT obturator internus
Term
Sciatic
Definition
From L4, L5, S1, S2, S3
Term
Sciatic
Definition
Skin of the foot
Entire lower leg (except medial side)
Muscles in posterior, anterior, and lateral compartment of the leg (via tibial and fibular nerves)
Term
Ilioinguinal
Definition
From L1
Term
Ilioinguinal
Definition
M = skin over root of penis and upper part of scrotum
F = skin over mons pubis and labium majus
Term
Iliohypogastric
Definition
From T12, L1
Term
Iliohypogastric
Definition
Sensory: Skin over the lateral gluteal region and above the pubis
Motor: internal and transverse abdominal muscles
Term
Femoral nerve
Definition
From L2, L3, L4
Term
Femoral nerve
Definition
Supplies the anterior compartment of the thigh
Term
Left and right hypogastric
Definition
From the superior hypogastric plexus
Term
Left and right hypogastric
Definition
Sympathetic fibers to the ovarian and ureteric plexus
Term
Inferior hypogastric plexi
Definition
Made from superior hypogastric plexus, sacral splanchnics, pelvic splanchnics (S2,3,4)
Term
Inferior hypogastric plexi
Definition
Supplies viscera of the pelvic cavity
Term
Inferior rectal nerves
Definition
Branches off pudendal nerve,
Occasionally directly sacral plexus
Term
Inferior rectal nerves
Definition
Cutaneous innervation below the pectinate line and external anal sphincter
Term
Perineal nerve
Definition
Branch of pudendal nerve (S2, S3, S4)
Term
Perineal nerve
Definition
Perineum
Transversus perinei superficialis
bulbospongiosus
inschiocavernosus
Term
Dorsal nerve penis
Definition
Branch of pudendal nerve (S2, S3, S4)
Term
Dorsal nerve clitoris
Definition
Branch of pudendal nerve (S2, S3, S4)
Term
Dorsal nerve penis
Definition
Skin on penis
Term
Dorsal nerve clitoris
Definition
Clitoris
Term
CN II - Optic Nerve
Definition
Transmits visual information from the retina to the brain
Term
CN III - Occulomotor nerve
Definition
Superior rectus
Inferior rectus
Medial rectus
Inerior oblique
Levator palpebrae
Sphincter pupillae (parasymp)
Cilicaris muscle (parasymp)
Term
CN III - Occulomotor nerve
Definition
Enter orbit through superior orbital fissure
Term
CN IV - Trochlear
Definition
Supplies superior oblique muscles
Term
Opthalmic Nerve (V1)
Definition
Branch of CNV - Trigeminal nerve
Term
Maxillary nerve (V2)
Definition
Branch of CNV - Trigeminal nerve
Term
Mandibular nerve (V3)
Definition
Branch of CNV - Trigeminal nerve
Term
Opthalmic Nerve (V1)
Definition
Leaves skill through superior orbital fissure
Term
Opthalmic Nerve (V1)
Definition
Sensory information from the scalp and forehead, the upper eyelid, the conjunctiva and cornea of the eye, the nose, the nasal mucosa, the frontal sinuses, and parts of the meninges (the dura and blood vessels).
Term
Maxillary nerve (V2)
Definition
Leaves skill through foramen rotundum
Term
Maxillary nerve (V2)
Definition
Sensory information from the lower eyelid and cheek, the nares and upper lip, the upper teeth and gums, the nasal mucosa, the palate and roof of the pharynx, the maxillary, ethmoid and sphenoid sinuses, and parts of the meninges.
Term
Mandibular nerve (V3)
Definition
Leaves skill through foramen ovale
Term
Mandibular nerve (V3)
Definition
Sensory information from the lower lip, the lower teeth and gums, the chin and jaw, parts of the external ear, and parts of the meninges. The mandibular nerve carries touch/position and pain/temperature sensation from the mouth. NOT taste
Term
CN VI - Abducens
Definition
Supplies lateral rectus muscle
Term
CN VII - Facial nerve
Definition
Controls muscles of facial expression
Taste from anterior 2/3 of tongue and oral cavity
Term
CN VIII - Vestibulocochlear
Definition
Sound and balance from the inner ear to the brain
Term
CN IX - Glossopharyngeal
Definition
Sensory: posterior 1/3 tongue, pharynx, tonsils, middle ear
Taste posterior 1/3 tongue
Carotid bodies, carotid sinus
Parasymp: parotid gland
Motor: Stylopharyngeus muscle
Term
CN X - Vagus
Definition
Motor parasympathetic ibers to all the organs except the suprarenal (adrenal) glands, from the neck down to the second segment of the transverse colon
Muscles: notably - pharyngeal constrictors, larynx (speech)
Term
CNXI - Accessory
Definition
Sternocleidomastoid and trapezius muscle
Term
CN XII - Hypoglossal
Definition
Genioglossus, Hypoglossus, Styloglossus
Term
Frontal nerve
Definition
Branches off Opthalmic nerve (V1)
Term
Frontal nerve
Definition
Enter orbit through superior orbital fissure
Term
Frontal nerve
Definition
Sensory innervations for the skin of the forehead, mucosa of frontal sinus, and the skin of the upper eyelid
Term
Supraorbital nerve
Definition
Terminal branch of frontal nerve
Term
Supraorbital nerve
Definition
Upper eyelid
supplies the conjunctiva of the eye, the frontal sinus and the skin from the forehead extending back to the middle of the scalp
Term
Supratrochlear nerve
Definition
Branches off frontal nerve
Term
Supratrochlear nerve
Definition
Supplies skin of the lower part of the forehead, close to the midline
Conjunctiva
Skin of the upper eyelid
Term
Lacrimal nerve
Definition
Branches of Opthalmic nerve (V1)
Term
Lacrimal nerve
Definition
Sensory innervations for the lacrimal , conjunctiva and the lateral upper eyelids.
Term
Nasociliary nerve
Definition
Branches of Opthalmic nerve (V1)
Term
Nasociliary nerve
Definition
Its three divisions cumulatively supply:
Dilator pupillae muscle
Sphenoidal and ethmoidal air sinuses
Skin of the medial part of the upper eyelid and adjacent part of the nose
Mucous membrane of nasal cavity
Skin of nose down to tip
Term
Anterior ethmoidal nerve
Definition
Branch of Nasociliary nerve (off V1)
Term
Infratrochlear nerve
Definition
Branch of Nasociliary nerve (off V1)
Term
Posterior ethmoidal nerve
Definition
Branch of Nasociliary nerve (off V1)
Term
Anterior ethmoidal nerve
Definition
Supplies mucous membrane of nasal cavity
Skin of nose down to tip
Term
Infratrochlear nerve
Definition
Skin of the medial part of the upper eyelid and adjacent part of the nose
Term
Posterior ethmoidal nerve
Definition
Sphenoidal and ethmoidal air sinuses
Term
Auriculotemporal nerve
Definition
Branch of Mandibular nerve (V3)
Term
Auriculotemporal nerve
Definition
Provides sensory innervation to various regions on the side of the head - notable the temple
Term
Lingual nerve
Definition
Branch of Mandibular nerve (V3)
Term
Lingual nerve
Definition
Somatic afferent innervation from the mucous membrane of the anterior 2/3 of the tongue
Chorda tympani nerve which provides taste to the anterior 2/3 tongue
Term
Inferior alveolar nerve
Definition
Branch of Mandibular nerve (V3)
Term
Inferior alveolar nerve
Definition
Mandibular teeth
Sensory branches that form dental plexus
Gives off mental nerve - sensory branches to chin and lip
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