Cranial nerves Flashcards
CN I
Olfactory
CN II
Optic
CNIII
Oculomotor
CN IV
Trochlear
CN V
Trigeminal
CN VI
Abducent
CN VII
Facial
CN VIII
Vestibulocochlear
CN IX
Glossopharyngeal
CN X
Vagus
CN XI
Accessory
CN XII
Hypoglossal
Which nerves originate from the pons?
- Trigeminal (5)
- Abducent (6)
- Facial (7)
- Vestibular portion of vestibulocochlear (8)
Which nerves originate from the medulla oblongata?
- Cochlear portion of vestibulocochlear (8)
- Glossopharyngeal (9)
- Vagus (10)
- Hypoglossal (12)
Which cranial nerve originates from the spinal cord?
Spinal accessory (11)
Terminal branches of ophthalmic trigeminal V1
Frontal, lacrimal and nasociliary nerves
which nerve runs across the surface of lateral rectus?
Abducent nerve (6)
Which nerve runs across superior oblique and pierces it?
Trochlear nerve (4)
Which nerve pierces stylopharyngeus?
Glossopharyngeal (IX)
action of longus capitis and longus colli
flexion of the head and neck
Action of rectus capitis anterior
flexes atlanto-occipital joint
action of rectus capitis lateralis
lateral flexion of the head
innervation of longus capitis
anterior rami C1-3
innervation of longus colli
anterior rami C2-6
Innervation of rectus capitis anterior and lateralis
Anterior rami of C1-2
epiglottis cartilage type
elastic
innervation of cricothyroid
external laryngeal branch of vagus CN X
innervation of thyroarytenoid, posterior and lateral cricoarytenoid, oblique and transverse arytenoid
Recurrent laryngeal branch of vagus CNX
cricothyroid action
tense and elongate vocal folds