Kine 318 Test Iii Shoulder Complex And Upper Arm

Front 1

Clavicle

Back 1

Collarbone

Slender Bone
6 Inches Long
Shape like the letter S
The point at which it changes shape is the number one area for fractures

Front 2

Scapula

Back 2

"Shoulder Blade"

Flat, Triangular Bone.
Two major projections:
1) Spine (Hooklike projection)
2) Coracoid process

Above the spin is the supraspinous fossa and below is the infraspinous fossa

Front 3

Humerus

Back 3

Large arm bone

Made up of the head, anatomical neck, greater and lesser tuberosities with a bicipital groove in between (retains the long tendon of the biceps brachii muscle).

Front 4

Sternoclavicular Joint

aka SC Joint

Back 4

Proximal end of clavicle with the manubrium of the sternum

A fibrocartilaginous disk is interposed between the two surfaces.

The SC joint is very weak in bony arrangement but has very strong ligamentous stability

Front 5

Anterior Sternoclavicular Ligament

Back 5

Prevents upward displacement of the clavicle

Front 6

Posterior Sternoclavicular Ligament

Back 6

Prevents upward displacement of the clavicle

Front 7

Interclavicular Ligament

Back 7

Prevents lateral displacement of the clavicle

Front 8

Costoclavicular Ligament

Back 8

Prevents lateral and upward displacement of the clavicle

Front 9

Acromioclavicular Joint

aka AC Joint

Back 9

Gliding articulation of the lateral end of the clavicle with the acromion process. A weak joint surrounded by a thin, fibrous sleeve and 3 ligaments

Front 10

3 Ligaments of the AC Joint

Back 10

1) Superior Acromioclavicular Ligament
2) Inferior Acromioclavicular Ligament
3) Coracoclavicular Ligament

Front 11

Coracoclavicular Joint (CC)

Back 11

Coracoid Process with the clavicle joined by the Coracoclavicular ligament

Divided into the conoid and the trapezoid parts

Front 12

Glenohumeral Joint (GH)

Back 12

The TRUE Shoulder Joint

Ball + Socket Joint;

Round Head of the Humerus and Glenoid cavity of the Scapula.

A fibrocartilaginousrim know as the GLENOID LABRUM deepens the cavity.

Surrounding the articulation is a loose, articular capsule

Front 13

List the 4 ligamentous reinforcers of the Glenohumeral (GH) Joint:

Back 13

1) Superior Glenohumeral Ligament
2) Middle Glenohumeral Ligament
3) Inferior Glenohumeral Ligament
4) Coracohumeral Ligament

Front 14

What is the name of the Nerve Network of the Shoulder complex and how many nerves are in it?

Back 14

BRACHIAL PLEXUS

There are 5 anterior nerve rami subdivisions that create a nerve network. They are the C5-T1 Spinal Nerve segments.

Front 15

Set Scapula

Back 15

First 45 degrees of motion: Scapula does not contribute

Beyond 45 degrees, the scapula starts to move in a 1:2 ratio (1 degree of scapula movement for every 2 degrees of humeral movement)

Front 16

Rotator Cuff:

Back 16

Supraspinatus

Infraspinatus

Subscapular

Teres Minor

Front 17

Shoulder Abduction

Back 17

-Middle Deltoid
-Anterior Deltoid
-Supraspinatus
-Posterior Deltoid

Front 18

Shoulder Adduction

Back 18

-Pectoralis Major
-Long Head of Ticeps
-Teres Major
-Coracobrachialis
-Latissimus dorsi

Front 19

Shoulder Extension

Back 19

-Latissimus Dorsi
-Posterior Deltoid
-Teres Major
-Long Head of Triceps
-Subscapularis

Front 20

Shoulder Flexion

Back 20

-Anterior Deltoid
-Long Head of Biceps
-Pectoralis Major
-Coracobrachialis

Front 21

Shoulder External Rotation

Back 21

-Infraspinatus
-Posterior Deltoid
-Teres Minor

Front 22

Shoulder Internal Rotation

Back 22

-Subscapularis
-Teres Major
-Pectoralis Major
-Anterior Deltoid
-Latissimus Dorsi

Front 23

Scapular Depression

Back 23

(Inferior movement of the shoulder girdle)
-Pectoralis Minor
-Trapezius

Front 24

Scapular Elevation

Back 24

(Superior movement of the shoulder girdle)
-Levator Scapulae
-Trapezius
-Rhomboid Major
-Rhomboid Minor

Front 25

Scapular Protraction

Back 25

(forward movement of the shoulder girdle)
-Serratus Anterior

Front 26

Scapular Retraction

Back 26

(Backward movement of the Shoulder Girdle)
-Rhomboid Major
-Rhomboid Minor
-Trapezius

Front 27

Downward Rotation of the Scapula

Back 27

(Rotary movement of the scapula with the inferior angle of the scapula moving medially and downward)
-Rhomboid Major
-Rhomboid Minor
-Pectoralis Minor

Front 28

Upward Rotation of the Scapula

Back 28

(Rotary movement of the scapula with the inferior angle of the scapula moving laterally and upward)
-Serratus Anterior
-Trapezius

Front 29

Elbow Bones:

Back 29

1) Distal Humerus
2) Proximal radius and Ulna

Front 30

Articulations of the Elbow

Back 30

1) Lateral Condyle of Humerus (capitulum) with the radius

2) Medial Condyle of Humerus (Trochlea) with the Ulna

3) Joint Capsule + Supporting Ligaments

Front 31

Supporting Ligaments of the Elbow

Back 31

1) Ulnar Collateral
2) Radial Collateral
3) Annular Ligament (Stabilizes and encircles the head of the radius)

Front 32

Motions of the Elbow

Back 32

1) Flexion
2) Extension
3) Supination
4) Pronation

Front 33

Why is pronation/supination possible in the elbow joint?

Back 33

The Head of the Radius rests against the capitulum freely without any bone limitations

Front 34

Elbow: Synovium and Bursa

Back 34

Synovial Membrane encircles the elbow and superior radioulnar articulations and lubricates the deeper structures of the two joints.

The two main bursae are the bicipital bursae which cushions the tendon when the forearm is pronated and the olecranon bursae which forms a liquid cushion

Front 35

Muscles of the Elbow Flexion

Back 35

-Biceps Brachii
-Brachialis
-Brachioradialis
-Pronator Teres

Front 36

Musles of Elbow Extension:

Back 36

1) Triceps Brachii
2) Aconeus

Front 37

Muscles of Elbow Supination:

Back 37

1) Biceps Brachii
2)Supinator
3) Brachioradialis

Front 38

Muscles of Elbow Pronation:

Back 38

1) Pronator Teres
2) Pronator Quadratus
3) Aconeus
3) Brachioradialis

Front 39

Blood Supply of Elbow

Back 39

1)Brachial Arteries
2) Medial Arteries

Front 40

Nerve Supply of Elbow:

Back 40

1) Musculocutaneous Nerve
2) Radial Nerve
3) Median Nerve

Front 41

Forearm Bones:

Back 41

1) Ulna
2) Radius

Front 42

Ulna

Back 42

Larger at Upper End than at its Lower End

Front 43

Radius

Back 43

Thicker at its lower end than at its upper end

Front 44

# of Articulations of Forearm

Back 44

Three Articulations

Front 45

List of Forearm Articulations

Back 45

1) Superior Radioulnar Joint
2) Middle Radioulnar Joint
3) Distal Radioulnar Joint

Front 46

Superior Radioulnar Joint

Back 46

Forearm

Pivot Joint moving in a ring formed by the ulna and annular ligament

Front 47

Middle Radioulnar Joint

Back 47

Forearm

Shafts of bones; held together by the oblique cord and interosseus membrane; provides a surface for muscle attachments

Front 48

Distal Radioulnar Joint

Back 48

Forearm

Pivot Joint formed by head of ulna with a small notch on radius; held together by anterior and posterior radioulnar ligaments

Front 49

Forearm Muscles

Back 49

Anterior: Flexors & Pronators

Posterior: Extensors & Supinators

Front 50

Blood Supply of the Forearm

Back 50

1) Brachial Artery (Major Source)

Brachial Artery divides into:
1) Radial Artery
2) Ulnar Artery

Front 51

Nerve Supply of Forearm

Back 51

Most Flexor Muscles: Median Nerve

Most Extensor Muscles: Radial Nerve

Front 52

Wrist and Hand Bones

Back 52

-Distal Aspect of Radius
-Distal Aspect of Ulna

-8 Carpal Bones (Radial to Ulnar Side)
**Proximal Row: Navicular (Scaphoid), Lunate, Triquetral, Pisiform
**Distal Row: Trapezium, Trapezoid, Capitate, Hamate

-5 Metacarpals
-14 Phalanges

Front 53

Wrist Articulations

Back 53

Radius and Ulna: 3 of 4 proximal row carpals (navicular, lunate, and triquetal).
A condyloid joint that permits flexion, extension, radial and ulnar deviation, and circumduction. Strength is due to the number of tendons that cross wrist.

Front 54

4 Wrist Ligaments

Back 54

1) Ulnar Collateral
2) Radial Collateral
3) Volar Radiocarpal
4) Dorsal Radiocarpal

Front 55

Wrist/Hand

Intercarpal Joints

Back 55

Stabilized by:

1) Anterior Interosseus Ligament
2) Posterior Interosseus Ligament
3) Connecting Interosseus Ligament

Major Ligament:
-Transverse Carpal Ligament (Flexor Retinaculum); Located on the volar aspect of the carpals and serves as the roof of the carpal tunnel

Front 56

Wrist/Hand

Carpometacarpal Joint

Back 56

Distal Row of Carpals with the Proximal End of the Metatcarpals

Front 57

Wrist/Hand

Metacarpophalangeal Joint (MCP)

Back 57

Each Joint is reinforced by collateral and accessory volar ligaments

Front 58

Wrist/Hand

Interphalangeal Joints

Back 58

PIP and DIP Joints of fingers

Front 59

Blood Supply of Wrist/Hand

Back 59

1) Radial Artery
2) Ulnar Artery

Front 60

Nerve Supply of Hand

Back 60

1) Ulnar Nerve
2) Radial Nerve
3) Median Nerve