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Anatomy And Physiology > Muscles and Articulations of Upper Extremity > Flashcards

Muscles and Articulations of Upper Extremity Flashcards

1
Q

Name the bones of the shoulder girdle

A

Scapula
Clavicle
Humerus

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2
Q

Name the joints of the shoulder girdle

A

Acromioclavicular
Sternoclavicular
Glenohumular
Scapulothoracic

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3
Q

What are the bony landmarks of this joint sternoclavicular joint?

A

Manubrium (sternum)

Clavicle

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4
Q

What are the muscles that act upon the sternoclavicular joint?

A

No muscles act directly on the joint but muscles that act on the clavicle may cause movement at this joint

  • Deltoid
  • Pectoralis Major
  • Trapezius
  • Sternocleidomastoid
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5
Q

What type of joint is the sternoclavicular joint?

A

Saddle joint - synovial

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6
Q

What type of joint is the acromioclavicular?

A

Plane/gliding joint - synovial

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7
Q

What are the bony landmarks of the acromioclavicular joint?

A

Clavicle

Acromion

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8
Q

What are the muscles that act upon the acromioclavicular joint?

A

No muscles act directly on the joint but muscles that move the cavicle may cause movement at this joint

  • Deltoid
  • Pectoralis Major
  • Trapezius
  • Sternocleidomastoid
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9
Q

What type of joint is the scapulothoracic joint?

A

Not a true synovial joint but it is freely moveable

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10
Q

What are the bony landmarks of the scapulothoracic?

A 
Ribs
Scapula
(lateral border
medial border
inferior angle
superior angle
spine of the scapula)
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11
Q

What muscles act upon the scapulothoracic joint?

A 
Trapezius
Rhomboid minor and major
Levator scapula
Serratus anterior
Pectoralis minor
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12
Q

What type of joint is the glenohumeral joint?

A

Ball and socket - synovial

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13
Q

What are the bony landmarks of the glenohumeral joint?

A 
Glenoid fossa
Spine of the scapula
Humeral head
Greater tubercle
Lesser tubercle
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14
Q

What are the muscles that act upon the glenohumeral joint?

A 
Rotator cuff (bonus: name all four!)
Deltoid
Pectoralis Major
Latissimus Dorsi
Coracobrachialis
Teres Major
Triceps Brachii (long head)
Biceps brachii (short head)
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15
Q

What type of joint is the elbow joint? List the two joints as well.

A

Hinge joint - synovial
Humeroradial
Proximal radioulnar joint

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16
Q

Name the bony landmarks of the elbow joint

A 
Humerus:
Trochlea
Radial fossa
Olecranon fossa
Lateral epicondyle
Medial epicondyle
Coronoid fossa
Capitulum
Radius:
Head
Ulna:
Olecranon process
Coronoid process
17
Q

What muscles act upon the elbow joint?

A 
Biceps brachii
Triceps brachii
Brachioradialis
Brachialis
Pronator teres
Supinator
Wrist extensors
Wrist flexors
18
Q

What type of joint is the wrist and hand?

A

Gliding, condyloid, and saddle joint

Hinge joints in fingers

19
Q

What are the bony landmarks of the hand and wrist?

A

Carpals
Metacarpals
Phalanges
Styloid processes of ulna and radius

20
Q

What are the muscles of the hand and wrist?

A

Wrist flexors

Wrist extensors

21
Q

Name the action and nerve of the latissimus dorsi.

A

Action: extends, adducts, and rotates the arm medially at the shoulder joint - draws the arm downward and backward
Nerve: thoracodorsal nerve

22
Q

Name the action and nerve of the teres major.

A

Lat’s little helper
Action: extends arm at the shoulder joint
assist in adduction and rotation of the arm medially at the shoulder joint
Nerve: subscapular nerve

23
Q

Name the action and nerve of the pectoralis major.

A

Action: adduct and rotate the arm medially at the shoulder joint - flexion and extension at the shoulder joint
Nerve: lateral pectoral nerve
medial pectoral nerve

24
Q

Name the four muscles of the rotator cuff

A

Supraspinatus
Infraspinatus
Subscapularis
Teres Minor

25
Q

Name the action and nerve of the supraspinatus

A

Action: assists deltoid muscles in abducting the arm at the shoulder joint
Nerve: Suprascapular nerve

26
Q

Name the action and nerve of the infraspinatus

A

Action: rotates the arm laterally at the shoulder joint
Nerve: Suprascapular nerve

27
Q

Name the action and nerve of the subscapularis

A

Action: rotates the arm medially at the shoulder joint
Nerve: Subscapular nerve

28
Q

Name the action and nerve of the teres minor

A

Action: rotates the arm laterally and extends the arm at the shoulder joint
Nerve: axillary nerve

29
Q

Name the action and nerve of the deltoid

A

Action: abducts, flexes, extends, and rotates the arm at the shoulder joint
Nerve: axillary nerve

30
Q

Name the action and nerve of the coracobrachialis

A

Action: flexes and adducts the arm at the shoulder joint
Nerve: Musculocutaneous nerve

31
Q

Name the action and nerve of the biceps brachii

A

Action: flexes and supinates forearm
Nerve: musculocutaneous nerve

32
Q

Name the action and nerve of the triceps brachii

A

Action: extends forearm at elbow and extends arm at the shoulder
Nerve: radial nerve

33
Q

Name the action and nerve of the brachialis

A

Action: flexes forearm at the elbow
Nerve: musculocutaneous nerve

34
Q

Name the action and nerve of the brachioradialis

A

Action: flexes the forearm at the elbow
Nerve: radial nerve

35
Q

Name the action and nerve of the pronator teres

A

Action: pronates forearm
Nerve: median nerve

36
Q

Name the action and nerve of the supinator

A

Action: supinates forearm
Nerve: posterior interosseus nerve

Anatomy And Physiology (14 decks)

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