Flashcards in Overview of Upper Extremity Deck (36)
What does the clavicle do?
acts as a strut to keep upper limp in lateral position, connects upper limp to axial skeleton
What is significant about the suprascapular notch?
superior transverse scapular ligament spans the notch to form a foramen for the passage of the suprascapular nerve
What does the glenoid cavity articulate with?
What is found in the intertubercular groove (bicipital groove)?
the tendon of the long head of biceps brachii
Where is the radial groove? What does it contain?
it is located on the posterior shaft of the humerus, radial nerve and deep artery of the arm run through it
Sternoclavicular (SC) joint
synovial joint between the clavicle and the manubrium of the sternum
allows the clavicle and the manubrium to move anterior and posterior and allows for elevation and depression
Acromioclavicular AC joint
synovial joint between the clavicle and the acromion of the scapula
scapulothoracic (ST) joint
not a true anatomic joint
a functional joint, permitting movement of the scapula on the thoracic wall
What joints allow movement of the scapula?
What are the movements of the scapula?
elevation, depression, retraction, protraction, upward rotation, downward rotation
Glenohumeral (GH) Joint
head of the humerus articulates with the glenoid cavity of the scapula, ball and socket joint with wide ROM
What are the movements of the glenohumeral joint?
Medial Rotation/Lateral Rotation
What is meant by scapulohumeral rhythm?
for every 2 degrees of glenohumeral movement there is 1 degree of scapulothoracic movement
where the distal humerus articulates with the proximal radius and ulna
a hinge synovial joint
What movements occur at the elbow joint?
Proximal and Distal Radioulnar Joints
synovial joints, ulna is stable and radius rotates
What movement occurs at the proximal and distal radioulnar joints?
Supination and Pronation
Wrist (radiocarpal) joint
synovial joint between the distal radius, articular discs and proximal carpals (scaphoid, lunate and triquetrum)
What movements occur at the wrist (radiocarpal) joint?
What are the movements of the CMC joint of the pollex?
Metacarpophalangeal (MCP) joints
synovial joints between the metacarpals and the proximal phalanges
What movements occur at the MCP joints?
IP joints, what movements occur here?
hinge synovial joints between phalanges
Function of flexor and extensor retinacula
keep tendons in place
What are the superficial veins of the UE?
dorsal venous network
medial cubital vein
arises from the lateral aspect of the dorsal venous network
travels along lateral aspect of forearm and arm and enters the deltopectoral triangle
Where does the cephalic vein drain into?
the axillary vein
Arises from medial aspect of the dorsal venous network, courses along medial side of forearm and arm
joins brachial veins to form axillary vein
Median cubital vein
site of venipuncture
arises from the cephalic vein