Asked by Rebecca Helmeczi on Jul 12, 2024
Verified
During an assessment of the cranial nerves (CNs) , the nurse finds the following: asymmetry when the patient smiles or frowns, uneven lifting of the eyebrows, sagging of the lower eyelids, and escape of air when the nurse presses against the right puffed cheek. These findings indicate dysfunction of which cranial nerve(s) ?
A) Motor component of CN IV
B) Motor component of CN VII
C) Motor and sensory components of CN XI
D) Motor component of CN X and sensory component of CN VII
Cranial Nerves
Twelve pairs of nerves that emerge directly from the brain, not through the spinal column, serving various sensory and motor functions of the head and neck.
Asymmetry
The lack of equality or equivalence between parts or aspects of something; not symmetrical.
Eyelids
Thin layers of skin that cover and protect the eyes.
- Implement and decipher assessments crucial to the functioning of the nervous system.
- Discern between healthy and diseased neurological conditions.
Verified Answer
VE
Veronica EberhardtJul 17, 2024
Final Answer :
B
Explanation :
The nurse's findings all reflect motor dysfunction, none are sensory. The specific cranial nerve affected is the facial nerve (CN VII). Cranial nerve IV, the trochlear nerve, innervates a muscle in the eye muscle and is responsible for eye movement, not the symptoms this patient is experiencing. The nurse's findings all reflect motor dysfunction, none are sensory, therefore options c and d can be eliminated because they each contain a sensory component.
Learning Objectives
- Implement and decipher assessments crucial to the functioning of the nervous system.
- Discern between healthy and diseased neurological conditions.
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