A nurse is performing a physical examination on a patient. When the patient is asked to protrude his tongue, the nurse noticed a deviation from the midline to the right side. This is related to a lesion of:

CN V

CN XII

CN VII

CN I

Answer and Explanation

The Correct Answer is B

A.   The trigeminal nerve (CN V) primarily controls sensation in the face and the muscles of mastication (chewing). While it is crucial for sensory input and motor control related to chewing, it does not directly control the movement of the tongue.
B.   The hypoglossal nerve (CN XII) is responsible for controlling the movements of the tongue. A lesion of CN XII can cause the tongue to deviate towards the side of the weakness or damage. This is because the hypoglossal nerve innervates the muscles of the tongue, and damage to it results in weakness of the muscles on the affected side, causing the tongue to deviate towards that side when protruded.
C.   The facial nerve (CN VII) controls the muscles of facial expression. While it affects facial movements and expressions, it does not control the movements of the tongue. A lesion in CN VII would typically result in facial asymmetry or weakness rather than tongue deviation.
D.   The olfactory nerve (CN I) is responsible for the sense of smell. It does not have any role in controlling tongue movement. Therefore, a lesion in CN I would not cause deviation of the tongue.

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Correct Answer is C

Explanation

A. Kyphosis is a condition characterized by an excessive outward curvature of the thoracic spine, leading to a hunchbacked appearance. It often results from degenerative diseases, osteoporosis, or other spinal conditions.
B. Lordosis refers to an excessive inward curvature of the lumbar spine, often referred to as "swayback." This condition can be congenital or due to other factors like obesity or pregnancy.
C. Osteoporosis is a bone condition characterized by decreased bone density and strength, leading to an increased risk of fractures. It is particularly common in postmenopausal women due to decreased estrogen levels, which help maintain bone density.
D. Scoliosis is a condition characterized by an abnormal lateral curvature of the spine. It can be congenital, idiopathic, or secondary to other conditions.

A. Coma B. Lethargy C. Obtunded D. Stupor

Correct Answer is B

Explanation

A. Coma is a state of profound unconsciousness where the patient cannot be awakened and does not respond to any stimuli, including verbal commands or physical stimuli.

B. Lethargy is characterized by a state of drowsiness or fatigue where the patient may fall asleep easily but can be roused to respond appropriately when stimulated. The patient shows decreased alertness but is still capable of engaging with stimuli.
C. Obtunded refers to a state where the patient has reduced alertness and responsiveness. They may respond slowly and require increased stimulation to achieve a response. They are less aware of their environment and have dulled senses.
D. Stupor is a state of near-unconsciousness where the patient can only be awakened by vigorous or painful stimuli. They may not respond to verbal commands but may show some response to more intense stimuli.

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A nurse is performing a physical examination on a patient. When the patient is asked to protrude his tongue, the nurse noticed a deviation from the midline to the right side. This is related to a lesion of:

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