A patient is able to move both upper arms as follows: active movement against gravity, and some resistance. The nurse should document the muscle strength of the upper arms as:

A. The glossopharyngeal nerve is involved in several functions, including taste sensation on the posterior third of the tongue, salivation, and the sensation of the pharynx. It also plays a role in swallowing and gag reflex. However, it is not responsible for the movement of the jaw or clenching of the jaw.
B. The trigeminal nerve is responsible for sensation in the face and also controls the muscles of mastication (chewing). It has both sensory and motor functions. The motor branches of the trigeminal nerve, specifically the mandibular division, innervate the muscles that allow for jaw movement, including clenching.
C. The vagus nerve has a broad range of functions, including regulating heart rate, digestive tract motility, and some aspects of speech and swallowing. It does not control jaw movement or clenching, so it is not relevant to this observation.
D. The facial nerve controls the muscles of facial expression, including movements like smiling, frowning, and closing the eyes. It is not involved in the motor control of the jaw or clenching actions.

A. Lateral epicondylitis, commonly known as "tennis elbow," is an overuse injury characterized by pain and tenderness on the outer part of the elbow (lateral epicondyle). It results from repeated stress and

strain on the forearm muscles and tendons, often due to activities involving repetitive arm motions such as tennis. The pain typically worsens with activities involving gripping, extending, or lifting.
B. Rheumatoid arthritis (RA) is a chronic inflammatory disease that typically affects joints symmetrically, causing pain, swelling, and stiffness. It usually involves joints like the hands, wrists, and knees rather than the elbows alone. RA symptoms are generally more diffuse and persistent, rather than specifically linked to recent physical activity and localized pain associated with movement.
C. Gout is a form of arthritis caused by the accumulation of uric acid crystals in the joints. It often presents with sudden, severe pain, redness, and swelling, typically affecting the big toe but can also affect other joints. Gout attacks usually occur at night and are often very acute and localized. It is less likely to be associated with the type of pain described (pain during extension and flexion) and recent physical activity.
D. Medial epicondylitis, also known as "golfer’s elbow," is similar to lateral epicondylitis but affects the inner part of the elbow (medial epicondyle). It is more commonly associated with activities that involve gripping and wrist flexion rather than the generalized extension and flexion pain described.