Terms in this set (12)
Olfactory (CN I)
SENSORY, Sense of smell to the brain. Bulbs located on either side of the crista galli. Doesn't go through thalamus, which is why we need smoke detectors.
Optic (CN II)
SENSORY, vision from the retina. Optic nerves travel from retina to thalamus of the brain. Optic nerve--> optic chiasma---> optic tract
Oculomotor (CN III)
MOTOR, supplies motor fibers to four of the extrinsic muscles to move the eye. Controls inferior oblique, inferior rectus, superior rectus, and medial rectus muscles.
Trochlear (CN IV)
MOTOR, motor fibers to the superior oblique muscle of the eye. Goes through superior orbital fissure.
Trigeminal (CN V)
Sensory is face sensation of touch (also pain)
Motor is masseter muscle
Goes through foramen ovale
Abducens (CN VI)
MOTOR, motor fibers to the lateral rectus muscle of the eye
Facial (CN VII)
sensory is taste
motor is lacrimal (tear) gland, salivary glands, skeletal facial muscles (facial expressions)
SENSORY, from the internal ear for balance (vestibular part), and hearing (cochlear part)
Glossopharyngeal (CN (IX)
sensory is tase
motor is salivary gland and muscles of the pharynx (swallowing)
Vagus (CN X)
BOTH, only cranial nerve that extends beyond the head and neck. Goes into abdominoplevic region.
Sensory is taste
Motor is swallowing, voice muscles, autonomic fibers to many abdominal organs such as heart, lung, liver, stomach, intestines, etc. Parasympathetic system
Accessory (CN XI)
MOTOR, motor to sternocleidomastoid and trapezius muscles.
Hypoglossal (CN XII)
MOTOR, motor to tongue muscles