Functions: note that these are only the basic functions; limit the muscle(s) to

ID: 3481573 • Letter: F

Question

Functions: note that these are only the basic functions; limit the muscle(s) to only those learned in lab Smell(sensory only) Give name of bone and bone marking this nerve travels through: Cranial Nerve . Olfactory nerve Vision (sensory only) Give name of bone and bone marking this nerve travels through: Il. Optic nerve Movement of eyeball Give name of bone and bone marking this nerve travels through: II. Oculomotor nerve Give muscle names Movement of eyeball Give name of bone and bone marking this nerve travels through: IV. Trochlear nerve Give muscle name Sensations of the face; chewing Give muscle names: V. Trigeminal nerve Movement of eyeball (laterally) Give name of bone and bone marking this nerve travels through: Give muscle name: Facial expression; taste VI. Abducens nerve Give muscle names: ViIl. Facial nerve vill. Vestibulocochlear nerve Equilibrium; hearing IX. Glossopharyngeal nerve saliva Taste, movement of pharynx during swallowing and speech; secretion of Taste; swallowing; coughing; parasympathetic stimulation of heart and digestive tract x. Vagus nerve Swallowing; movement of head and shoulders Give muscle names: XI. Accessory (spinal) nerve Movement of tongue during speech and swallowing XI. Hypoglossal nerve Give muscle name: 145

Explanation / Answer

Cranial nerve

Basic Functions and answer

Small ( sensory only)

It passes through foramina in the cribriform plate of the ethemoid bone and ends in the olfactory bulb. This tract extends via olfactory and cerebral cortex

Vision ( sensory only)

Passes through the optic foramen forms the optic chiasm and then the optic tracts and terminates in the lateral geniculate nuclei of thalamus. Form the thalamus fibers to the primary visual area of the cerebral cortex.

III – Oculometer

Movement of eye ball

Passes through superior orbital fissure.

Muscles- superior rectus, medial rectus, inferior rectus, and inferior oblique.

Mixed

Originate in midbrain and passes through the superior orbital fissure.

Muscles- superior oblique

Sensation of face

Muscles of mastication- masseter, temporatis, medical pterygoid, lateral pterygoid, anterior belly of digastric and mylohyoid muscles.

Movement of eyeball lateral

Superior orbital fissure to end the pons.

Muscles-rectus and extrinsic eyeball muscles

Facial expression

Muscles- Occipitofrontalis muscle,Temporoparietalis muscle, Procerus muscle, Nasalis muscle, Depressor septi nasi muscle, Orbicularis oculi muscle.

Equilibrium, hearing

Taste movement

Taste Swallowing

Swallowing, movement of head and shoulder

Muscles-sternocleidmastoid and trapezius

Movement of tough during speech and swallowing

Muscles- genioglossus, hyoglossus, styloglossus, and the palatoglossus