Clinical ?'s
A two year old child will not go to take her nap. Her mother tightly holds her left hand as she leads her to the bedroom. Refusing to go further, the child suddenly attempts to jerk away and then sits down screaming and holding her left elbow. In a attempt to calm her down her mother offers her a cookie, but she cannot supinate her left hand to receive it. Which joint was dislocated?
the proximal radio-ulnar joint
Where does the long head of the triceps brachii orginate?
scapula (infraglenoid tubercle)
what initiates abduction of the arm?
supraspinatus
What is the function of articular discs?
to absorb shock
What nerve is at risk in dislocation of the glenohumeral joint?
axillary nerve
In order to evaluate the carpal-metacarpal joint of the thumb, the median nerve must be deadened at the wrist (causing paralysis of the muscles supplied by it distal to the injection) to test the joint. Which movement of the thumb would be most affected by the anesthetic?
opposition
What muscles make up the anatomical snuff box?
Extensor pollicis brevis
Abductor pollicis longus
extensor pollicis longus
Insertion of biceps brachii?
radial tuberosity
what part of the glenohummeral joint is weakest?
inferior portion
What sturcture is located just deep to the median cubital vein?
median nerve
A patient is severely limited in extension at the wrist joint after several months in a cast following a Colles fracture. Which joint would be especially important in therapy to regain full extension?
radiocarpal
Contents of cubital fossa?
What forearm flexors are not innervated by median nerve?
Flexor carpi ulnaris
medial half of flexor digitorum profundus
What type of joint is the thumb joint?
saddle joint
Dislocation of the acromionclavicular joint is commonly called what?
seperated shoulder
During an industrial accident, a sheet metal worker lacerates the anterior surface of his wrist at the junction of his wrist and hand. Examination reveals no loss of hand function, but the skin on the thumb side of his palm is numb. Branches of which nerve must have been severed?
median nerve
What group of muscles originate on the medial epicondyle? the lateral?
medial: flexor/pronator group
lateral: extensor and supinator group
the radial nerve typically travels with which artery?
profunda brachii artery
What is hilton's law?
every muscle that crosses a joint; its nerves also innervate the joint
The superficial palmar arch is supplied by which artery?
ulnar
A boy fell onto a sharp object and cut his deep radial nerve as it emerged from the supinator muscle. The artery joining it at this point was also injured. The injured artery is the:
posterior interosseous
What is the contents of the carpal tunnel?
Median nerve
flexor pollicis longus
flexor digitorum superficials
flexor digitorum profundus
Name all extensors that orginate from common extensor tendon
What is tennis elbow?
pain is felt over the lateral epicondyle
− Lateral epicondylitis
What supplies blood to the glenohummeral joint?