In a diving accident that severed the spinal cord below the sixth cervical veebra, which muscle would be affected?
Correct Answer: Latissimus dorsi
Description: If the spinal cord was severed beneath the 6th cervical veebra, all nerve roots below C6 would be affected. So, latissimus dorsi, which is innervated by the thoracodorsal nerve (C6, C7, C8) would be affected. Deltoid is supplied by the axillary nerve (C5, C6). Infraspinatus is supplied by the suprascapular nerve (C5, C6). Levator scapulae is supplied by the dorsal scapular nerve (C5). All of these nerve nerves would be intact, so these muscles would not be affected after the accident.
Category:
Anatomy
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