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Questions and Answers
The posterior interosseous nerve is a direct branch of ___ nerve
The posterior interosseous nerve is a direct branch of ___ nerve
- Ulnar nerve
- Deep radial nerve (correct)
- Median nerve
- Radial Nerve
Which nerve below directly comes off the lateral cord of the brachial plexus?
Which nerve below directly comes off the lateral cord of the brachial plexus?
- Long thoracic nerve
- Suprascapular nerve
- No of these
- Lateral pectoral nerve (correct)
Median nerve and its branch innervates all muscles in the flexor compartment of the elbow except
Median nerve and its branch innervates all muscles in the flexor compartment of the elbow except
- Pronator Teres
- Flexor carpi ulnaris (correct)
- Flexor carpi digitorum superficialis
- Pronator quadratus
The posterior ulnar recurrent artery anastomoses with the
The posterior ulnar recurrent artery anastomoses with the
Which muscle does not have an attachment on the lateral epicondyle of humerus?
Which muscle does not have an attachment on the lateral epicondyle of humerus?
Which terminal branch in the brachial plexus is formed by the combination of the lateral and medial cords?
Which terminal branch in the brachial plexus is formed by the combination of the lateral and medial cords?
Which nerve's supplies the sensory innervation to the medial aspect of the forearm?
Which nerve's supplies the sensory innervation to the medial aspect of the forearm?
Which of the following structure is NOT innervated by the deep radial nerve or its branch?
Which of the following structure is NOT innervated by the deep radial nerve or its branch?
Which of the following structure is purely innervated by the radial nerve?
Which of the following structure is purely innervated by the radial nerve?
Which of the following structure is NOT aboundary of the cubital fossa?
Which of the following structure is NOT aboundary of the cubital fossa?
Which nerve pierces the supinator muscle?
Which nerve pierces the supinator muscle?
Which muscle has an attachment on the medial epicondyle of humerus?
Which muscle has an attachment on the medial epicondyle of humerus?
Which muscle has an attachment on the radial collateral and annular ligaments?
Which muscle has an attachment on the radial collateral and annular ligaments?
Which is not a direct branch of the ulnar artery?
Which is not a direct branch of the ulnar artery?
Upward rotation of scapulae at AC joint places significant stress on which of the following ligaments causing posterior rotation of clavicle?
Upward rotation of scapulae at AC joint places significant stress on which of the following ligaments causing posterior rotation of clavicle?
The ligament of the elbow will be affected by varus stress
The ligament of the elbow will be affected by varus stress
In open kinematic chain, rolling and sliding are in opposite directions in the distal radioulnar joint during supination and pronation
In open kinematic chain, rolling and sliding are in opposite directions in the distal radioulnar joint during supination and pronation
Flexion of the humeroulnar joint in closed chain kinematic, which statement is true?
Flexion of the humeroulnar joint in closed chain kinematic, which statement is true?
Which of the following rotator cuff muscles is responsible for compressing the head of the humerus on the glenoid fossa during abduction?
Which of the following rotator cuff muscles is responsible for compressing the head of the humerus on the glenoid fossa during abduction?
Decreasing carrying angle leads to increased varus stress on the elbow
Decreasing carrying angle leads to increased varus stress on the elbow
The AC joint contributes lesser degrees of scapular upward rotation in scapulohumeral rhythm ___
The AC joint contributes lesser degrees of scapular upward rotation in scapulohumeral rhythm ___
Study Notes
Nerve Branches and Anatomy
- The posterior interosseous nerve is a direct branch of the radial nerve.
Brachial Plexus
- The musculocutaneous nerve directly comes off the lateral cord of the brachial plexus.
Elbow Muscles
- The median nerve and its branch innervate all muscles in the flexor compartment of the elbow except the flexor carpi ulnaris and the ulnar half of the flexor digitorum profundus.
Blood Supply
- The posterior ulnar recurrent artery anastomoses with the anterior interosseous artery.
Muscle Attachments
- The brachioradialis muscle does not have an attachment on the lateral epicondyle of the humerus.
- The flexor carpi radialis muscle has an attachment on the medial epicondyle of the humerus.
- The extensor carpi radialis brevis muscle has an attachment on the radial collateral and annular ligaments.
Nerve Distribution
- The medial antebrachial cutaneous nerve supplies the sensory innervation to the medial aspect of the forearm.
Radial Nerve
- The extensor carpi radialis brevis muscle is purely innervated by the radial nerve.
Cubital Fossa
- The medial epicondyle is not a boundary of the cubital fossa.
Posterior Interosseous Nerve
- The posterior interosseous nerve pierces the supinator muscle.
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