UE Fact/QA KH (Extra) Flashcards
What nerve passes through the surgical neck of the Humerus?
Axillary Nerve
What nerve passes through the Radial Groove of the Humerus?
Radial Nerve
IF there is a fracture in distal part of the Humerus, then there is a danger of which nerve damage?
Median Nerve
Fracture in medial epicondyle likely to cause damage to which nerves?
Ulnar Nerve
Artery that supplies the Supraspinous and Infraspinous muscles?
Suprascapular artery
Blood supply to the glenohumeral joint
Posterior Circumflex humeral artery
What muscles form the rotator cuff?
Subscapularis, infraspinatus, supraspinatus, and Teres Minor
Action and Innervation of Triceps Brachii muscle
Responsible for elbow extension and innervated by the Radial nerve
Action and Innervation for Teres minor
Lateral Rotation of the shoulder and innervated by the Axillary Nerve
Action and Innervation of Teres Major
Role is to perform adduction and medial rotation at the shoulder joint. It is innervated by the subscapular nerve.
Action and Innervation of Latissimus Dorsi
Adduction, extension and medial rotation at the shoulder joint. Innervated by the thoracodorsal nerve.
Action and Innervation of Coracobrachialis muscle
Adduction and flexion at the shoulder joint. Innervated by the musculocutaneous nerve
Origin and Action of Biceps Brachi
Long head originates from the supraglenoid tubercle, while the short head from the coracoid process. Muscle is responsible for elbow flexion.
Innervation of Biceps Brachii muscle
Innervated by the musculocutaneous nerve
Action and Innervation of Subscapularis muscle
Performs adduction and medial rotation at the shoulder joint. Subscapular nerve innervates it.
Action and Innervation of Serratus Anterior Muscle
This muscle protracts and rotates the scapula. It is innervated by the long thoracic nerve
Which muscle/s have insertion point on the greater tubercle of the Humerus?
Supraspinatus, Infraspinatus, and teres minor muscle.
Which muscle/s have insertion point on the Lesser tubercle of the Humerus?
Subscapularis Muscle
Muscle that has an insertion point on Intertubercular sulcus
Latissimus Dorsi Muscle
Which muscle gets inserted to Deltoid Tuberosite on the shaft of the humerous?
Deltoid Muscle
Deltoid Muscle likely to have paralysis effect due to injury in which nerve?
Axillary
Is Teres Major considered part of Rotator Cuff muscle?
NOPE
Which nerve/artery passes through the Quadrangular Space?
Axillary nerve and Posterior humeral Circumflex Artery.
Innervation of Subscapularis Muscle
Upper and Lower Subscapularis nerves
Which arteries will be most likely damaged, after a fracture at the surgical neck of the humerus?
Anterior Humeral Circumflex Artery and Posterior Humeral Circumflex Artery
What muscle(s) divide the axillary artery in 3 parts?
Pec Minor Muscle
A man falls from a high ladder and is known to have sustained injury in the right brachial plexus (plexus brachialis). When he recovered, he went back to the doctor who noticed that there was no winging of the scapula, and abduction could not be initiated by the patient unless help was given by abducting the arm through the first 45 degrees. What nerve might be injured?
Suprascapular Nerve
What muscles does the coracoid process of the scapula (processus coracoideus) serve as an attachment point for?
Coracobrachialis, Short head of Brachialis Biceps, and Pec minor muscle
A surgeon tied off, due to the bleeding, the suprascapular artery (arteria suprascapularis) as it crossed the top of the scapula. She did it knowing that the direct collateral branches of one artery would supply the normal distribution of the suprascapular artery. What was that artery?
Circumflex Scapular Artery
The axillary artery (arteria axillaris) is a continuation of what artery?
Subclavian A.
30 year old male patient who works out regularly presents with skin sensation disturbances on the radial part of the forearm, and a weakened flexion in the elbow. Overuse of the coracobrachialis could be the cause. What nerve might be entrapped?
Musculocutaneous nerve
What nerve terminates as the upper lateral cutaneous nerve of the arm (nervus cutaneus brachii lateralis superior) that supplies the posterior skin of the arm?
Axillary nerve
What muscle defines the surface anatomy of the dorsal upper arm and forms a thick tendon that inserts at the olecranon of the ulna?
Triceps Brachii muscle
