Exam 2 Review Flashcards
The cubitus Valgus deformity results in a _____ in the normal carrying angle (5 degrees) and may be caused by stretching of the ____ collateral ligament
Increase
Medial
The cubitus Varus deformity results in a _____ in the normal carrying angle (5 degrees) and may be caused by stretching of the ____ collateral ligament
Decrease
Lateral
What is the common origin of the muscles of the anterior compartment of the antebrachium?
the medial epicondyle of the humerus
Describe the relationship of the Radial nerve to deep brachial artery in radial (spiral groove)?
The radial nerve and the deep brachial artery run together through the spiral groove in the humerus and the deep brachial artery is more lateral than the radial nerve
Describe the relationship of the Brachial artery to median nerve?
They run together for the length of the humerus and diverge at the same level that the brachial artery splits into the ulnar artery and radial artery
The median nerve diverges from the brachial artery when it runs between the 2 heads of the pronator teres (ulnar head and Humeral head)
Describe the relationship of the Brachial artery to bicipital aponeurosis?
The brachial artery runs beneath the bicipital aponeurosis
Describe the relationship of the Superior ulnar collateral artery to medial epicondyle?
The superior ulnar collateral artery runs posterior to the medial epicondyle where it anastamoses and becomes the posterior ulnar recurrent artery
Describe the relationship of the Inferior ulnar collateral artery to medial epicondyle?
The inferior ulnar collateral artery runs anterior to the medial epicondyle where it anastamoses and becomes the anterior ulnar recurrent artery
Describe the relationship of the Radial collateral artery to lateral epicondyle?
The radial collateral artery runs anterior to the lateral epicondyle where anastamoses and becomes the radial recurrent artery
Describe the relationship of the Median cubital vein to bicipital aponeurosis?
The bicipital aponeurosis is deep to the median cubital vein (common phlebotomy site)
Describe the relationship of the Ulnar nerve to medial epicondyle?
The ulnar nerve passes superficially to the medial epicondyle (this exposed position makes injury more likely)
Describe the relationship of the Musculocutaneous nerve to coracobrachialis muscle?
The musculocutaneous nerve pierces the coracobrachialis muscle in the upper half or third of the brachium
Describe the relationship of the Musculocutaneous nerve to biceps and brachialis muscles?
It innervates both of them
Describe the relationship of the Lateral cutaneous nerve of the forearm to the bicipital tendon?
The lateral cutaneous nerve is the continuation (branch) of the musculocutaneous nerve
The musculocutaneous nerve becomes considered the lateral cutaneous nerve when it runs out from underneath and laterally to the end of the bicipital tendon
What cutaneous innervation does the median nerve supply?
most of the thumb, and the phalangeal aspect of digits 2 and 3
What cutaneous innervation does the ulnar nerve supply?
the phalange and metacarpal areas of the 5th digit
What cutaneous innervation does the Radial nerve supply?
supplies the posterior aspect of the brachium, the lateral aspect of the posterior antebrachium, and the dorasal area over the metacarpals of digits 1-3
What cutaneous innervation does the musculocutaneous nerve supply?
the musculocutaneous nerve branches to form the lateral cutaneous nerve
this supplies cutaneous sensitivity of the lateral anterior antebrachium
What cutaneous innervation does the axillary nerve supply?
the inferior lateral portion of the deltoid “badge area”
What passes through Guyon’s Canal?
The ulnar nerve and ulnar artery