Function of C5 Nerve?

[Oak]

A patient has a herniated intervertebral disc impinging on the right C5 nerve roots. Which of the following movements would most likely be affected?

A. Extension of the fingers

B. Extension of the shoulder

C. Flexion of the elbow

D. Flexion of the wrist

E. Pronation of the elbow

[bharat]

Originally Posted by Oak

A patient has a herniated intervertebral disc impinging on the right C5 nerve roots. Which of the following movements would most likely be affected?

A. Extension of the fingers

B. Extension of the shoulder

C. Flexion of the elbow

D. Flexion of the wrist

E. Pronation of the elbow

HUMM tough question bro.
to my knogledge in such cases there are lot of syptoms like numbness of fingers ,rapid onset of severe arm pain, with numbness in the thumb and index finger , arm weakness etc. & he may have hyperflexia too.
but still iam confused which is affected most A,C,D
i will go for c. but please suggest me .
Ajkal class dheri che yeha time dine garo birako che bro. any way i miss u.
see u

[Oak]

Thats right bharat, the correct answer is C. C5 helps mediate flexion, abduction, and lateral rotation of the shoulder, and flexion of the elbow. Both C5 and C6 mediate extension of the elbow.

Extension of the fingers (choice A) is mediated by C7 and 8.

Extension of the shoulder (choice B) is mediated by C7 and 8.

Flexion of the wrist (choice D) is mediated by C6 and 7.

Pronation of the elbow (choice E) is mediated by C7 and 8.