Podcast
Questions and Answers
What is the primary function of the biceps brachii muscle?
What is the primary function of the biceps brachii muscle?
- Abduction of the shoulder
- Extension of the forearm
- Supination of the forearm (correct)
- Adduction of the shoulder
Which nerve gives rise to the lateral cutaneous nerve of forearm?
Which nerve gives rise to the lateral cutaneous nerve of forearm?
- Radial nerve
- Median nerve
- Axillary nerve
- Musculocutaneous nerve (correct)
What is the result of a lesion of the musculocutaneous nerve on flexion at the shoulder?
What is the result of a lesion of the musculocutaneous nerve on flexion at the shoulder?
- Flexion is completely lost
- Flexion is unaffected
- Flexion is weakened, but can still occur (correct)
- Flexion is strengthened
Which muscle is responsible for supination of the affected limb in cases of musculocutaneous nerve lesions?
Which muscle is responsible for supination of the affected limb in cases of musculocutaneous nerve lesions?
What is the result of a lesion of the musculocutaneous nerve on sensation in the forearm?
What is the result of a lesion of the musculocutaneous nerve on sensation in the forearm?
What is the innervation area of the superior lateral cutaneous nerve of arm?
What is the innervation area of the superior lateral cutaneous nerve of arm?
What is the primary function of the rotator cuff muscles?
What is the primary function of the rotator cuff muscles?
What is the origin of the upper lateral cutaneous nerve of the arm?
What is the origin of the upper lateral cutaneous nerve of the arm?
What is the typical presentation of a patient with axillary nerve damage?
What is the typical presentation of a patient with axillary nerve damage?
What is the most common cause of axillary nerve damage?
What is the most common cause of axillary nerve damage?
What is the function of the deltoid muscle?
What is the function of the deltoid muscle?
What is the innervation of the deltoid muscle?
What is the innervation of the deltoid muscle?
What is the primary location where the median nerve enters the forearm?
What is the primary location where the median nerve enters the forearm?
What is the main function of the palmar cutaneous nerve?
What is the main function of the palmar cutaneous nerve?
What is the most common cause of carpal tunnel syndrome?
What is the most common cause of carpal tunnel syndrome?
What is the typical pain distribution in carpal tunnel syndrome?
What is the typical pain distribution in carpal tunnel syndrome?
What is a common symptom of carpal tunnel syndrome that affects the patient's daily life?
What is a common symptom of carpal tunnel syndrome that affects the patient's daily life?
What is the outcome of untreated carpal tunnel syndrome?
What is the outcome of untreated carpal tunnel syndrome?
Which of the following muscle is innervated by the ulnar nerve?
Which of the following muscle is innervated by the ulnar nerve?
What is the primary function of the muscles innervated by the median nerve in the hand?
What is the primary function of the muscles innervated by the median nerve in the hand?
What is the purpose of holding the wrist in flexion for 60 seconds during physical examination?
What is the purpose of holding the wrist in flexion for 60 seconds during physical examination?
What is the primary treatment for carpal tunnel syndrome if a splint does not provide relief?
What is the primary treatment for carpal tunnel syndrome if a splint does not provide relief?
Which branch of the median nerve innervates the lateral two lumbricals?
Which branch of the median nerve innervates the lateral two lumbricals?
Which nerve arises from the median nerve and supplies the deep flexors?
Which nerve arises from the median nerve and supplies the deep flexors?
What is the effect of a lesion of the median nerve at the elbow on the flexor carpi ulnaris?
What is the effect of a lesion of the median nerve at the elbow on the flexor carpi ulnaris?
Which nerve innervates the muscles in the anterior forearm and hand, except for those innervated by the median nerve?
Which nerve innervates the muscles in the anterior forearm and hand, except for those innervated by the median nerve?
What is the significance of Tinel's sign in physical examination?
What is the significance of Tinel's sign in physical examination?
What is the purpose of surgical decompression of the carpal tunnel?
What is the purpose of surgical decompression of the carpal tunnel?
Which branch of the median nerve does not pass through the carpal tunnel?
Which branch of the median nerve does not pass through the carpal tunnel?
What is the result of a lesion of the median nerve at the elbow on the pronators and flexors in the forearm?
What is the result of a lesion of the median nerve at the elbow on the pronators and flexors in the forearm?
What is the typical outcome of an untreated Erb's palsy?
What is the typical outcome of an untreated Erb's palsy?
Which of the following nerves is NOT affected in Erb's palsy?
Which of the following nerves is NOT affected in Erb's palsy?
What is the primary cause of Erb's palsy?
What is the primary cause of Erb's palsy?
Which of the following muscles is NOT innervated by the nerve roots affected in Erb's palsy?
Which of the following muscles is NOT innervated by the nerve roots affected in Erb's palsy?
What is the primary symptom of Erb's palsy?
What is the primary symptom of Erb's palsy?
Which of the following nerves is responsible for innervating the muscles affected in Erb's palsy?
Which of the following nerves is responsible for innervating the muscles affected in Erb's palsy?
What is the primary function of the nerves formed by the anterior divisions of spinal nerves C5-T1?
What is the primary function of the nerves formed by the anterior divisions of spinal nerves C5-T1?
What is the anatomical location where the roots of the brachial plexus converge to form three trunks?
What is the anatomical location where the roots of the brachial plexus converge to form three trunks?
Which spinal nerves form the brachial plexus?
Which spinal nerves form the brachial plexus?
What is the mnemonic used to remember the parts of the brachial plexus?
What is the mnemonic used to remember the parts of the brachial plexus?
What is the term for the beginning of the brachial plexus?
What is the term for the beginning of the brachial plexus?
What is the pathway through which the nerves of the brachial plexus pass initially?
What is the pathway through which the nerves of the brachial plexus pass initially?
What is the characteristic position of the forearm in Erb's palsy?
What is the characteristic position of the forearm in Erb's palsy?
Which nerves are affected in a lower brachial plexus injury?
Which nerves are affected in a lower brachial plexus injury?
What is the primary symptom of a lower brachial plexus injury?
What is the primary symptom of a lower brachial plexus injury?
What is the typical posture of the affected limb in Erb's palsy?
What is the typical posture of the affected limb in Erb's palsy?
Which muscles are paralyzed in a lower brachial plexus injury?
Which muscles are paralyzed in a lower brachial plexus injury?
What is the characteristic joint position in a lower brachial plexus injury?
What is the characteristic joint position in a lower brachial plexus injury?
