PNS Flashcards
What structure
Olfactory nerve
(CN 1)
What foramen or fissure pass through
Olfactory foramina of cribiform plate
What function
Sensory for special sense of smell
Olfactory nerve
What structure
Optic nerve
(CN 2)
What foramen or fissure nerve pass through
Optic canal
(optic foramen)
What function
Sensory of special sense of vision
What structure
Oculomotor nerve
(CN 3)
What foramen or fissure nerve pass through
Superior orbital fissure
What function
Motor to superior, medial, inferior rectus, inferior oblique, upper eyelid
What structure
Trochlear nerve
(CN 4)
What foramen or fissure nerve pass through
Superior orbital fissure
What function
Superior oblique
What structure
Trigeminal nerve
(CN 5)
(contains 3 branches)
What structure
Trigeminal nerve – Ophthalmic branch
(CN 5)
What foramen or fissure nerve pass through
Superior orbital fissure
What function
Sensory from scalp, forehead, nose, upper eyelid, cornea
(Nasal cannula on with oxygen)
What structure
Trigeminal nerve – Maxillary branch
(CN 5)
What foramen or fissure nerve pass through
Foramen rotundum
What function
Sensory from palate, upper jaw, upper teeth and gums, nasopharynx, nasal cavity, skin and mucous membranes of cheek, lower eye lid, upper lip
What structure
Trigeminal nerve – Mandibular branch
(CN 5)
What foramen or fissure nerve pass through
Foramen ovale
What function
Sensory from lower jaw, lower teeth and gums, anterior 2/3 tongue, mucous membranes from cheek, lower lip, skin of cheek and chin, auricle (outer ear), temporal region;
Motor to masication muscle, soft palate, throat, middle ear (tensor tympani)
(Cheshire Cat smile)
What structure
Abducens Nerve
(CN 6)
What foramen or fissure nerve pass through
Superior orbital fissure
What function
Motor to lateral rectus
(Abduct your visual scenes)
What structure
Facial nerve
(CN 7)
What foramen or fissure nerve pass through
Internal auditory meatus and stylomastoid foramen
What function
Sensory from special sense of taste on anterior 2/3 of tongue
motor to facial muscles, throat muscles, middle ear muscle (stapedius)
What structure
Vestibulocochlear nerve
(CN 8)
What foramen or fissure nerve pass through
Internal acoustic meatus
What function
Sensory for special senses of hearing and balance
What structure
Glossopharyngeal nerve
(CN 9)
What foramen or fissure nerve pass through
Jugular foramen
What function
Sensory for special sense of taste on posterior 1/3 of tongue, sensory of pharynx, palatine tonsils, middle ear, carotid sinus, carotid body
Motor to stylopharyngeus (a pharyngeal muscle)
What structure
Vagus nerve
(CN 10)
What foramen or fissure nerve pass through
Jugular foramen
What function
Sensory from inferior pharynx, larynx, thoracic and abdominal organs, special sense of taste from posterior tongue
motor to soft palate, pharynx, laryngeal muscles that produce voice, and an extrinsic tongue muscle
What structure
Accessory nerve
(CN 11)
What foramen or fissure nerve pass through
Foramen magnum; jugular foramen
What function
Motor to sternocleidomastoid and trapezius
(Trapeze artist is an accessory to a crime)
What structure
Hypoglossal nerve
(CN 12)
What foramen or fissure nerve pass through
Hypoglossal canal
What function
Motor to the intrinsic and extrinsic (the muscles that lower the base of your tongue) tongue muscles and throat muscles
(When saying “ahh” to show doc your throat your tongue goes hypo)
Spinal nerves
All spinal nerves are mixed (formed from a dorsal and ventral root)
contains sensory and motor axons from dorsal and ventral root
Dorsal root
Transmits sensory stimuli from PNS to CNS
Ventral root
Transmits somatic and viceral motor signals from CNS to PNS
(Venting out a room)
What structure
Spinal nerve
What structure
Ventral root
What structure
Dorsal root
What structure
Dorsal root ganglion
What structure
Spinal nerve
What structure
Posterior ramus
(dorsal branch)
What structure
Anterior ramus
(ventral branch)
What structure
Ramus communicans
(visceral branch)
What nerves
Cervical nerves
(C1-C8)
What nerves
Thoracic nerves
(T1-T12)
What nerves
Lumbar nerves
(L1-L5)
What nerves
Sacral nerves
(S1-S5)
What nerve
Coccygeal nerve
(1 on either side)
What nerve
Ulnar nerve
What nerve
Median nerve
What nerve
Radial nerve
What nerve
Axillary nerve
What nerve
Phrenic nerve
What nerve
Femoral nerve
What nerve
Sciatic nerve
What nerve
Common fibular nerve
What nerve
Tibial nerve
What structures
Sympathetic chain ganglia
(from superior cerical to inferior sacral ganglion)
