Question

A fracture of the humerus that injures the radial nerve would cause which deficit

Answer 1

A fracture of the humerus that injures the radial nerve would cause a motor deficit related to damage to the area around the shaft of the humerus. The radial nerve also provides cutaneous innervation - so sensory loss is also possible or likely from such an injury. Damage or injury to the radial nerve and deep brachial vessels are both likely if the humerus is fractured because both of these are closely associated with the humerus.

Answer 2

A fracture of the humerus that injures the radial nerve would cause which motor deficit.

Further Explanation:

The upper limb mainly consists of three regions:

• Arm  
• Forearm
• Hand

The arm is made up of an only bone called humerus. Ulna and radius are the bones of forearm. The wrist made up of eight carpal bones, and the palm of the hand is formed by five metacarpal bones. The thumb and finger are made up of phalanges.

A fracture of humerus that mainly injures the radial nerve would cause a motor deficit related to damage to the area around the shaft of the humerus. Radial nerve mainly presents in the arm. They provide cutaneous innervations. So, any sensory loss is also likely to develop due to this injury. Damage or any injury in radial nerve and deep brachial vessels are both likely developed due to fracture in humerus. This is because both of these are very closely linked with the humerus.

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Answer Details:

Grade: High School

Subject: Biology

Topic: Humerus injury

Keywords:

Humerus, ulna, radius, metacarpal, thumb, finger, phalanges, radial nerve, sensory loss, motor deficit, fracture, cutaneous innervations, damage, injury.