Lateral: Scapula and Shoulder: DITS Flashcards
Origin: The spine and acromial process of the scapula
Insertion: The deltoid tuberosity
Action: To flex the shoulder
Innervation: Axillary nerve
Deltoideus (2 portions)
Innervation: Axillary nerve
Deltoideus
Origin: The spine and acromial process of the scapula
Deltoideus
Insertion: The deltoid tuberosity
Deltoideus
Action: To flex the shoulder
Deltoideus
Origin: The infraspinous fossa
Insertion: A small, circumscribed area on the lateral side of the greater tubercle of the humerus.
Action: To extend or flex the joint, depending on the degree of extension or position of the joint when the muscle contracts.
»To abduct the shoulder and to rotate the arm laterally.
Innervation: Suprascapular nerve.
Infraspinatus
Insertion: A small, circumscribed area on the lateral side of the greater tubercle of the humerus.
Infraspinatus
Origin: The infraspinous fossa
Infraspinatus
Action: To extend or flex the joint, depending on the degree of extension or position of the joint when the muscle contracts.
»To abduct the shoulder and to rotate the arm laterally.
Infraspinatus
Innervation: Suprascapular nerve.
Infraspinatus
Origin: The infragleonoid tubercle and distal third of the caudal border of the scapula.
Insertion: The teres minor tuberosity of the humerus
Action: To flex the shoulder and rotate the arm laterally.
Innervation: Axillary nerve
Teres minor
Action: To flex the shoulder and
rotate the arm laterally.
Innervation: Axillary nerve
Teres minor
Origin: The infragleonoid tubercle and distal third of the caudal border of the scapula.
Insertion: The teres minor tuberosity of the humerus
Teres minor
Origin: supaspinous fossa
Insertion: greater tubercle of the humerus, by a thick tendon
Action: To extend the shoulder
Innervation: Suprascapular nerve
Supraspinatus
Innervation: Suprascapular nerve
Supraspinatus
Action: To extend the shoulder
Supraspinatus
Origin: supaspinous fossa
Supraspinatus
Insertion: greater tubercle of the humerus, by a thick tendon
Supraspinatus
