Anatomy Test Iii

Front 1

Pectoralis Major

Back 1

P. Major

Hint 1

P. Major

Front 2

Proximal Attachment of Clavicular Head of P. Major

Back 2

Middle 1/2 of Clavicle

Front 3

Proximal Attachment of Sternocostal Head of P. Major

Back 3

Sternum
ist 6 Costal Cartilages
Aponerurosis of Ext. Oblique

Front 4

Distal Attachment of P. Major

Back 4

Intertubercular Groove of Humerus

Front 5

Innvervation of P. Major

Back 5

Medial and Lateral Pectoral Nerve

Front 6

Cranial Nerve Innervation of the Clavicular and Sternocostal Head

Back 6

C: C5 and C6 (Superior Trunk of Branchial Plexus)

S: C7 and C8-T1 (Middle and Inferior Trunk of Branchial Plexus)

Front 7

What is the ACTION of P. Major

Back 7

Adducts the Humerus Medially
Rotates the Humerus

Scapula Moves Forward

Front 8

Acting alone the clavicular head

Acting together the sternocostal head

Back 8

Flexes Humerus

Extends Humerus from flexed position

Front 9

Shoulder and Superficial Back

Back 9

Shoulder and Superficial Back

Hint 9

Shoulder and Superficial Back

Front 10

What are the BONES of the Shoulder and Superficial Back
(4 BONES)?

Back 10

Sternum

Clavicle

Scapula

Humerus

Front 11

Where does the MEDIAL Part of the clavicle articulate w/ the Sternum (Manubrium)?

What is this

Back 11

Clavicular Notch

Called a Sternoclavicular Joint

Front 12

What does the LATERAL Part of the clavicle articulate with?

Back 12

Acromium of the Scapula

Called the Acromioclavicular Joint

Front 13

What is the importance of the Sternoclavicular Joint?

Back 13

Only BONY attatchment of the Shoulder Complex to the Axial Skeleton

Front 14

What is the Shape of the Clavicle and what contributes to that shape?

Back 14

S- Shaped
Medial 2/3 is CONVEX anteriorly

Lateral 1/3 is CONCAVE anteriorly

Front 15

The large vessels and nerves of the upper limb pass ___ to the clavicle

Back 15

Posterior

Front 16

The NAME of the clavicle between the Sternal and Clavicular Ends

Back 16

SHAFT

Front 17

Purpose of the Clavicle

Back 17

Transmit forces of an outstreched arm from the UE to the axial skeleton

Front 18

Where does the clavicle usually fracture

Why?

Unique b/c?

Back 18

MIDDLE
-between medial 2/3 and lateral 1/3

B/c it is the thinnest part of the clavicle

Only part w/ NO ligamentous attatchments

Front 19

What elevates the Middle part of the clavicle

Back 19

SCM

Front 20

What bones of the UE are pressed down due to gravity

Back 20

Lateral Part of Clavicle

Scapula

Humerus

Front 21

When the clavicle is fractured ____ pulls the humerus medial which makes the clavicle parts over-ride each other

Back 21

P Major

Front 22

Be able to identify the parts of the Scapula

Back 22

Anterior and Posterior

Front 23

Glenoid means

Back 23

Shallow, Smooth depression

Socket-like

Front 24

The Suprascapular Notch is associated w/ what artery and nerve

Back 24

Suprascapular Artery and Nerve

Front 25

What is the differenece between the Anatomical Neck and the Surgical Neck of the Humerus

Back 25

Anatomical- circles around the Humeral Head and it the site of attatchment for the Glenohumeral Joint

Surgical Neck- Common site of fractures

Front 26

What are the names of the joints in the UE (4)?

Unique feature of one of the joints

Back 26

Sternoclavicular
-Manubrium w/ Clavicle

Acromioclavicular
-Acromium Process w/ Clavicle

Glenohumeral
-Scapula w/ the Humerus

Scapulothoracic
-Scapula w/ Thoracic Cavity
-NOT A TRUE JOINT

Front 27

They Sternoclavicular (SC) Joint is a ___ type joint that functions as a ____ joint

Back 27

Saddle Type- Synovial Joint

Ball in Socket

Front 28

What do I mean when i say the

Back 28

Convexities and Concavities on Both Bones

Front 29

The ___ seperates the Saddle type Synovial Joint (SC Joint) into a 2 compartments

What is its purpose?

Back 29

Articulating Disk

-Absorbs Shock
-Increases Stability of SCJ

Front 30

How many ligaments are associated w/ the SCJ and what are there names?

Back 30

3
-Sternoclavicular Ligament (2- Anterior// Posterior)
-Interclavicular Ligament
-Costoclavicular Ligament

Front 31

What are the functions of the ligaments of the SCJ

Back 31

Sternoclavicular Ligment
-Stabilizes the Joint Capsule both anteriorly and posteriorly

Interclavicular Ligament
-Stablilizes the Medial ends of the clavical

Costoclavicular Ligament
-attaches clavicles inferior medial end to the 1st rib and its costal cartilages

Front 32

Dislocation of the clavicle is____ while ____ is more common due to the ligaments

Back 32

Dislocation

Fracture

Front 33

What movements does the SCJ permit

Back 33

Elevation/Depression

Protraction/ Retraction

Rotation about the Long Axis
-90 degrees shoulder elevation

Front 34

What is the blood supply to the SCJ

Back 34

Internal Thoracic Artery

Suprascapular Artery

Front 35

What is the innervation of the SCJ

Back 35

Suprascapular Nerve

Nerve to Subclavius

Front 36

While the SCJ joint is a Saddle type Synovial Joint,...What type of joint is the Acromioclaviular Joint

Back 36

Plane type Synovial Joint

Front 37

While the SCJ has an articulateing disk that divides the joint into 2 compartments, what type of disk does the ACJ have?

Back 37

Fibrocartilage
-does not seperate the joint into compartments

Front 38

What are the 2 ligaments that are associated w/ the ACJ

-What is unique about one of these ligaments

Back 38

Acromioclavicular Ligament

Coracoclavicular Ligament
-Has no joint stablilizing function b/c it does not cross a joint
-formed by two other ligaments (conoid and trapezius ligaments)

Front 39

Acromial Joint dislocation is common and usually due to what?

What is the result

Back 39

Fall on the tip of the shoulder

Tears both ligaments (AC and Coracoclavicular ligaments)

Front 40

Glenohumeral Joint is what type of synovial joint

Unique about this Joint

Back 40

Ball in Socket

Most Moveable Joint in the Body!

Front 41

What is the significance of having a glenoid fossa that is 1/3 the size of the humeral head

Back 41

Allows for LOTS of movement
BUT
Not a lot of Stability

Front 42

What enhance the stability of the GHJ

Back 42

Contractile and Noncontractile Structures

Front 43

Name the 4 NON-contractile Structues that add stability to the GHJ

Back 43

Glenoid Labrum

Fibrous Joint Capsule

Coracoacromial Ligament

Glenohumeral Ligament

Front 44

What is the NON-contractile Glenoid Labrum, and its function?

Back 44

Fibrocartlagious Ring around that attatche to the MARGIN of the glenoid fosaa

Functions to increase the articulating surface area

Front 45

What is the NON-contractile Fibrous Joint Capsule, appearence and its functions?

Back 45

Goes from the Margin of the Glenoid Fossa to the Anatomical Neck of the Humerus

Thin//Loose

Folds inferiorly to let the shoulder ELEVATE
-Stablity is Compromised

Front 46

NON-contractile Coracoacromial Ligament Function?

Back 46

Prevents SUPERIOR Dislocation of the GHJ

Along the Corocoid Process and the Acromium

Front 47

The NON-contractile Glenohumeral Ligaments
-How many?
-Names?
-Thickenings of what?
-Support?

Back 47

-3
-Superior, Middle, Inferior
-Thickenings of Fibrous Joint Capsule
-Support GHJ

Radiate from Superior Part of Labrum to the anatomical neck

Front 48

Labral Tear is assoicated w/ what

Back 48

Dislocation of Shoulder
-Bankart Lesion