Cranial Nerves
What is the only cranial nerve to "wander" beyond the head and neck region?
Vagus Nerve, CN X
What is another name for the sympathetic nervous system?
Thoracolumbar division
What is an alternative name for the Parasympathetic Nervous System?
Craniosacral Division
Which CN is responsible for the motor aspect of the pupillary response?
CN III
Zach has a stroke in the area of the optic radiations. What is the name of the deficit that will affect his vision?
Quadrahemianopsia AKA pie in the sky
Which 4 cranial nerves have parasympathetic fibers?
Which ramus do sympathetic pre-ganglionic fibers pass through before synapsing with the second order body in the paravertebral ganglion?
White ramus
Where do preganglionic axons of the parasympathetic nervous system synapse with second-order neuron bodies?
Terminal ganglia
Which CN innervates the Lateral rectus (within the eye) and causes abduction?
CN VI
Jadan has a CN III palsy. Upon physical examination, name 2 findings you would observe.
1. unilateral ptosis
2. unilateral mydriasis
What is the only cranial nerve originating from the midbrain's dorsal aspect?
Trochlear/ CN IV
Which neurotransmitters bind to adrenergic receptors?
Does the parasympathetic nervous system innervate smooth muscles and glands associated with somatic structures?
NOOOOOOO noot noot
Which CN innervates the Parotid gland?
Glossopharyngeal/CN IX
Nhi was asked to smile and close her eyes as part of a neurological exam. The physician (who made an A in Dr. Pinner's A&P class) noticed she was unable to raise her right eyebrow, her smile was lopsided, and her nasolabial fold was not prominent. Is an upper or lower motor neuron lesion being described?
LMN
Which 3 cranial nerves exit the medulla and leave the skull through the jugular foramen?
Glossopharyngeal/CN IX, Vagus/CN X, & Accessory/CN XI
Correctly name THREE anticholinergic effects.
Mydriasis, ^ HR, ^ RR, dry mouth, urinary retention, constipation, sweating, vasoconstriction, photophobia
What are the 2 types of cholinergic receptors?
Muscarinic & Nicotinic
Which CNs purely have sensory functions?
CN I, II, & VIII
Mango is being quirky and sticks out her tongue. You notice that her tongue is deviating rightward and showing signs of atrophy. Do you suspect she has an upper or lower motor neuron lesion?
LMN
Temporalis & Masseter
Which effector organ binds to Acetylcholine as part of the parasympathetic response?
Sweat glands
How does parasympathetic innervation affect the SA Node?
Decreases the rate of cardiac impulses thus slowing heart rate
Please name the three foramina through which the divisions of CN V travel.
ophthalmic- superior orbital fissure
maxillary- foramen rotundum
mandibular- foramen ovale
Darean is experiencing dysphagia and impaired digestive motility. Additionally, on physical exam, her uvula is noted to be deviated. Which CN deficit is being described?
CN X/ Vagus