Upper Extremity Flashcards
In the clavicle, which portion articulates with the manubrium?
The sternoclavicular joint
In the clavicle, the acromial end articulates with acromion process of scapula at the ________ joint.
acromioclavicular
What is the scapula?
A triangular, flat bone on posterior shoulder girdle
What is the coracoid process?
The coracoid process is the anterior/superior projection that protects the shoulder joint, and is an attachment site for pectoralis and bicep muscles.
What is the largest projection on the scapula and ends in the glenoid fossa?
The glenoid process
How many tubercles does the humerus have?
2: the greater and lesser
What is the proximal end of the humerus called?
The humeral head
What is between the tubercles of the humerus?
The bicipital groove
What is the attachment site for the deltoid muscle?
Deltoid tuberosity
What is the subacromial-subdeltoid bursa?
The main bursae of the shoulder and the largest bursae in the body
What are the rotator cuff muscles?
Supraspinatus, spine of scapula, intraspinatus, teres minor
What are the SITS muscles?
Supraspinatus, infraspinatus, teres minor, spine of scapula
Where do a majority of the SITS muscles orginate?
Posterior scapula. Tendons insert onto a greater tubercle of humeral head.
Where does the Supraspinatus Muscle lie?
Supraspinous process of the scapula - it abducts the arm
How many carpal bones are in the hand?
8
