Should and arm muscles
What structure could the pectoralis minor create neurovascular compression?
Axially artery, brachial plexus, axillary
Which is the insertion point of biceps brachii?
Tuberosity of radius and aponeurosis of biceps brachii
What shoulder movement would lengthen the fibers of the latissimus dorsi?
Abduction
What muscle is an antagonist to itself?
Pectoralis major
What muscle acts as a synergist with the pectoralis minor during abduction of the scapula?
Serratus anterior
Which of the following is the primary muscle of supination?
Biceps brachii
What is the thin sheet of fascia extending off the distal tendon of the biceps brachii?
Bicipital aponeurosis
Flexing the shoulder and pulling the arm anteriorly while palpating the pectoralis major in a side lying position has what benefit?
Bring the pectoralis major off the chest walk while breast tissue falls away from area
What is the origin of coracobrachialis?
Coracoid process of scapula
What is the origin of the biceps brachii short head?
Coracoid process of scapula
What is the insertion of the pectoralis major?
Crest of greater tubercle of humerus
What is the insertion point of the teres major?
Crest of the lesser tubercle of the humerus
As you the biceps brachii belly proximally, it becomes deep to which muscle?
Deltoid
If you follow the fibers of the pectoralis major laterally they blend with the fibers of what muscle?
Deltoid
What muscles are completely superficial?
Deltoid
Which is the insertion of the deltoid
Deltoid tuberosity
What action can you ask your partner to preform to enable you to feel the levator scapula contract?
Elevate the scapula
What is an action of the levator scapula?
Elevate the scapula
What is the action of the teres major?
Extend the shoulder
What shoulder movement would lengthen the anterior fibers of the deltoid?
Extention
Which of the following is an action of biceps brachii
Flex the elbow
What is an action of the pectoralis majors upper fibers?
Horizontally adduct the shoulder
What bony landmark can help you distinguish the teres major from the latissimus dorsi fiber?
Lateral border of the scapula
What muscle helps create downward rotation of the scapula?
Levator scapula
What muscle is situated between the splenius capitis and the posterior scalene on the lateral side of the neck?
Levator scapula
Which head of the biceps brachii passes through the intertubercular groove?
Long head
What is part of the orgin of the teres major?
Lower half of lateral border of scapula
What is the insertion point for the levator scapula?
Medial border of scapula, between superior angle and superior portion of spine of scapula
What is part of the orgin of the pectoralis major?
Medial half of clavicle and sternum
What is the insertion of coracobrachialis?
Medial surface of mid humeral shaft
When exploring the orgin attachment site of the levator scapula there is potiental to create what condition?
Nerve compression
What muscle is divided into 3 segments: clavicular, sternal, and costal?
Pectoralis major
What acts as an antagonist to the biceps brachii during shoulder flex ion?
Pectoralis major (lower fibers)
In anatomical position, the coracobrachialis is deep to which two muscles?
Pectoralis major and anterior deltoid
Which movement would lengthen the fibers of the biceps brachii?
Pronation of the forearm
In a prone position what movement of the shoulder could you as your partner to preform to create a strong contraction of the latissimus dorsi
Resisted medial rotation
What muscle acts as an antagonist to the lower fibers of the trapezius during depression of the scapula?
Rhomboid major
With your partner in a supine position what adjustment will make the levator scapula more accessible?
Rotate head 45 degrees away from the side your palpating
Which movement would lengthen the fibers of the coracobrachialis?
Shoulder abduction
What muscle is a complete synergist with the latissismus Dorsi and is sometimes called lats little helper?
Teres major
Which of the following is part of the orgin of the latissimus dorsi?
Toracolumbar aponeurosis
The origin of the deltoid is identical to the insertion of what muscle?
Trapezius