Key Points Flashcards
Which of the following bony processes articulates with the clavicle?
articulates with the manubrium of the sternum and the acromion of the scapula
The spiral groove of the humerus runs over the posterior aspect of the humeral shaft. Which nerve runs in this groove?
Radial
Which movement are the rhomboid major and rhomboid minor muscles responsible for?
Retract the scapula
Which of the following muscles insert onto the lesser tubercle of the humerus and internally (or medially) rotate the humerus?
A.
Deltoid
B.
Infraspinatus
C.
Subscapularis
D.
Supraspinatus
E.
Teres minor
Subscapularis
The axillary artery is the direct continuation of which artery as it progresses laterally through the axilla?
Subclavian artery
Where does the biceps brachii muscle insert in order to flex the elbow and supinate the forearm?
Radial tuberosity
Which movements does the triceps brachii muscle produce?
Extension of the elbow and shoulder
Which branch of the brachial plexus innervates the deltoid muscle and contains fibres of C5 and C6 spinal nerves?
Axillary
Which carpal bone sits at the base of the thumb metacarpal, and articulates with the trapezoid and scaphoid?
Trapezium
Which muscle forms the lateral border of the antecubital fossa?
Brachioradialis
Which muscle forms the medial border of the antecubital fossa?
Pronator teres
Which anterior forearm muscle is solely supplied by the ulnar nerve?
Flexor carpi ulnaris
56 year old woman falls and sustains a fracture of the midshaft of her humerus. The doctor assessing her in the Emergency Department wishes to test the function of one of the nerves of the upper limb that is particularly vulnerable to injury due to its anatomical proximity to this location on the humerus.
Which of the following muscles could be tested to assess the function of the nerve that the doctor is concerned about?
Extensor carpi radialis longus
23-year-old man sustains an injury to his upper limb. The doctor assessing him in the Emergency Department wishes to test the function of his ulnar nerve. Which movements could the doctor ask the patient to perform to test this nerve?
Abduction of the fingers is performed by the dorsal interossei muscles which are supplied by the ulnar nerve, so this would be a suitable test.
A 65-year-old woman falls onto an outstretched right hand. She reports pain in her hand and wrist. The doctor assessing her in the Emergency Department palpates the anatomical snuffbox of her hand.
Which bone is found in the floor of the anatomical snuffbox?
Scaphoid