FM1010 ANATOMY - The Arm

What are the elbow extensors

Anconeys Triceps

Which muscle is the most effect elbow flexor

Brachialis

What is the cubical fossa bounded by

Brachioradialis Pronator teres Humerus

What is possible in fracture of shaft humerus in comparison to proximal humerus

Branches to triceps spared Elbow extension possible

What is the biceps tendon reflex testing

C6

How do you test for function of the c6 and c7 reflex

C6- biceps tendon C7- triceps tendon

What is the triceps tendon reflex testing

C7

Name the three superficial veins in the arm

Dorsal venous arch Cephalic vien Basilic vein

When can the radial nerve be injured

Fractures of proximal humerus Fracture of shaft of humerus (where it lies in the spiral groove)

Where does the profunda brachii lie in the arm

In radial groove

What divide the muscle

Intermuscular septa

How is a pacemaker threaded into heart

Into cephalic vein Axillary vein Subclavian vein SVC RA of heart

What does the musculocutaneous nerve continue as

Lateral cutaneous nerve of forearm

What does the long head and the short head of the biceps brachii pass through and to

Long: to supraglenoid tubercle Short: to the coracoid process

What are two common venepuncture sites in the arm

Medial cubical vein Cephalic vein posterior to styloid process of radius

What nerves supply the elbow joint

Median and ulnar nerves

What are the consequences of injury to motor peripheral nerves

Muscle weakness Incorrect posture Difficulty moving Wasting of muscle over time, bulkier on one side

What is the nerve supply to the anterior compartment

Musculocutaneous

What is the consequences of injury to sensory peripheral nerve

Numbness and tingling

What does the effect of biceps on elbow depend on

On position of shoulder and radioulnar joints Ineffective flexor of the elbow hewn pronated

What is the sensory innnervation fo the radial nerve

Posterior arm and forearm Lateral 3.5 fingers Forum of hand

What are the contents of the cubical fossa from lateral to medial

TAN Biceps Tendon Brachial Artery Median Nerve

What is in the anterior compartment of the arm

Three muscles Biceps brachii Brachialis Coracobrachialis

Where does the musculocutaneous nerve pass through

Through coracobrachialis Then between biceps and brachialis

What's in the anterior compartment of the arm

Triceps

What does the brachial artery divide in to

Ulnar and radial arteries

What is the interns vein

Venous access of cephalic vein posterior to styloid process of radius

What condition occurs as a injury of radial nerve

Wristdrop Flexion of wrist, unopposed flexors (extensors don't work ) Firm grip impossibly With time wasting of extensors

What is the roof of the cubital fossa

bicipital aponeurosis and median cubital vein