Anterior Shoulder Axilla I

Question 1

which bones make up the skeletal framework of the anterior shoulder/lower arm?

Answer 1

Clavicle
Scapula
Humerus
Ulna
Radius
Carpals
Metacarpal

Question 2

what are the main veins, arteries, and nerves of the anterior shoulder?

Answer 2

-Cephalic Vein
-Thoracoacromial artery
-Long Thoracic nerve
-Medial and lateral pectoral nerves

Question 3

The _______ runs up lateral aspect of arm from wrist to deltopectoral triangle and enters the triangle to join the axillary vein

Answer 3

cephalic vein

Question 4

the _________ is bounded by pectoralis major, deltoid, clavicle

Answer 4

Deltopectoral triangle

Question 5

the _______ Supplies blood to pec minor and major and anterior part of deltoid

Answer 5

thoracoacromial artery

Question 6

_______ is on the surface of the serratus anterior and innervates the _________

Answer 6

Long thoracic nerve
- serratus anterior

Question 7

The ___________ innervate the pectoralis Major, the ____ innervates pectoralis minoe

Answer 7

1. medial and lateral pectoral nerves
2. medial pectoral nerve

Question 8

what is the blood supply of the breast?

Answer 8

Internal thoracic artery
Intercostal arteries
Lateral thoracic artery

Question 9

what is the lymphatic drainage of the breast

Answer 9

-75% to axillary nodes
-25% to supraclavicular, parasternal, abdominal, and contralateral breast nodes

Question 10

what are the main muscles of the anterior shoulder?

Answer 10

Pec major, pec minor, serratus anterior, subclavius

Question 11

Origin of Pec major?

Answer 11

Clavicle, sternocostal and abdominal origin

Question 12

Insertion of pec major?

Answer 12

Lateral lip of intertubercular groove on humerus

Question 13

innervation of pec major

Answer 13

Lateral and medial pectoral nerves

Question 14

origin of pec minor

Answer 14

ribs 3,4,5

Question 15

insertion of pec minor

Answer 15

coracoid process of scapula

Question 16

innervation of pec minor

Answer 16

medial pectoral nerve

Question 17

serratus anterior origin

Answer 17

ribs 1-8

Question 18

insertion of serratus anterior

Answer 18

anterior surface of medial border of scapula

Question 19

innervation of serratus anterior

Answer 19

long thoracic nerve

Question 20

origin of subclavius

Answer 20

sternal end of first rib

Question 21

insertion of subclavius

Answer 21

inferior surface of clavicle

Question 22

innervation of subclavius

Answer 22

branch of brachial plexus

Question 23

what are the 6 boundaries of the axilla? what makes them up?

Answer 23

1. Medial Wall: serratus anterior
2. Anterior wall: Pec major and minor
3. Lateral wall: intertubercular groove of humerus
4. Posterior wall: subscapularis, teres major, lat dorsi
5. Base: fascia and skin covering axilla fossa (armpit)
6. Apex: aperture that opens into the base of the neck; bounded by first rib, clavicle, scapula

Question 24

what are the contents of the axilla? (4)

Answer 24

-Axillary artery
-Axillary vein
-Brachial plexus
-Lymph nodes

Question 25

how many branches does the axillary artery have? what is their relation to pec minor?

Answer 25

3 branches
1st branch -proximal
2nd branch- deep
3rd branch - distal

Question 26

what is the artery in the first branch of the axillary artery

Answer 26

superior thoracic artery

Question 27

what are the arteries in the second branch of the axillary artery?

Answer 27

-Thoracoacromial artery
-Lateral thoracic artery