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Muscles of the shoulder and upper arm
Terms in this set (34)
Which muscles make up the Rotator Cuff?
What are the orgins of Deltoid?
-lateral 1/3 clavicle
-Acromion process of scapula
-spine of scapula
These 2 muscles are supplied by the Axillary nerve.
The main action is ABduction of the arm.
What is the most commonly injured rotator cuff muscle?
Which muscle inserts onto the Lesser Tubercle of Humerus?
Does Teres Major do Medial or Lateral rotation?
Which muscles insert onto the Greater Tubercle of Humerus?
This muscle inserts into the crest of the lesser tubercle(aka medial lip of bicipital groove)
Subscapularis is supplied by which nerves?
Suprascapular Artery is the blood supply for which muscles?
Which muscle has 3 blood supply arteries? What are they?
What is the nerve that innervates Teres Major?
-lower subscapular nerves
The main action of these muscles are Lateral Rotation of the Humerus@ GH jt.
The deltoid inserts into the_________
-Deltoid tuberosity of the humerus
True or False: Teres Minor originates from the lateral side of the inferior angle and lower half of lateral border of the scapula.
(that is the origin of Teres Major)
Teres Major does Medial Rotation of the arm@ the GH jt. What are its other actions?
of the arm@GH jt.
What is the "uppercut" muscle?
What is the origin of Brachialis?
-distal anterior shaft of the humerus
The musculocutaneous nerve innervates which muscles?
Triceps Brachii is innervated by which nerve?
It is supplied by which artery?
-Brachial Artery (deep)
What are the 3 origins of Triceps Brachii?
-Long h: Infraglenoid Tubercle
-Lateral h: proximal 1/2 of humeral shaft
-Medial h: distal 1/2 of humeral shaft
True or False: All the Upper Anterior Arm Muscles are supplied by the Brachial Artery.
(*Triceps is supplied by the "deep" brachial artery)
True or False: one of the origins of Biceps Brachii is the infraglenoid tubercle.
(it is the Supraglenoid Tubercle)
What is the Insertion of Biceps Brachii?
-Radial Tuberosity and Bicipital Aponeurosis
What is the Action of Coracobrachialis?
-Flexion of the arm@GH jt.
-Adduction of the arm@GH jt.
The Ulnar Tuberosity and Coronoid Process of the Ulna is the Insertion or Origin of which muscle?
-Insertion of Brachialis
How many heads of Triceps Brachii insert onto the Olecranon Process of the Ulna?
Does Brachialis insert into the Coracoid? Conoid? or Coronoid?
-Coronoid Process of the Ulna
True or False: All heads of the Triceps Brachii contribute to Extension of the arm at the GH jt.
(Only the Long Head crosses the GH jt)
(All contribute to extension of the elbow jt)
What is the "beer drinking' muscle?
What are its actions?
-Flexion of elbow
-Brings forearm to neutral position(pronates when supinated, supinates when pronated)
What is the Origin and Insertion of Brachioradialis?
-Origin: Lateral Supracondyler ridge of the Humerus
-Insertion: Styloid Process of the Radius
What is the Blood Supply for Brachioradialis?
The Radial Nerve innervates which muscles?
Sets with similar terms
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