Thoracic Osteology And Wall Structure

Question 1

How many thoracic vertebrae?

Answer 1

12

Question 2

How many pairs of ribs and their costal catilages?

Answer 2

12

Question 3

What comprises the superior boundary?

Answer 3

First thoracic vertebrae, first pair of ribs and costal cartilages, and manubrium

Question 4

What comprises the inferior boundary?

Answer 4

12th thoracic vertebra, 12th pair of ribs and costal cartilages, and xiphisternal joint

Question 5

Manubrium articulates with __ aspect of body of sternum

Answer 5

Superior

Question 6

What joint type is the manubriosternal joint

Answer 6

Symphysis joint

Question 7

Xiphoid process marks level of dermatome _?

Answer 7

6

Question 8

Body of sternum made up of how many fused sternebrae?

Answer 8

4

Question 9

Vertebrosternal ribs numbers

Answer 9

1-7

Question 10

Vertebrochondral ribs numbers

Answer 10

8-10

Question 11

Vertebral ribs

Answer 11

11-12

Question 12

Costa = __ + __ ?

Answer 12

Rib bone + its cartilage

Question 13

What are the parts of a rib?

Answer 13

Head, neck, tubercle, shaft, and costal cartilage

Question 14

The scalene tubercle is for insertion of what muscle?

Answer 14

Scalene anterior muscle

Question 15

The shallow groove for subclavian vein is __ to tubercle

Answer 15

Anterior

Question 16

Shallow groove for subclavian artery is __ to tubercle

Answer 16

Posterior

Question 17

What is the first spinous process to be palpated

Answer 17

Vertebra prominent (C7)

Question 18

T/F: tubercle articulates with transverse process of same number vertebra

Answer 18

T

Question 19

Sternal angle marks rib number

Answer 19

2

Question 20

Aortic valve heart sound can be heard at the __ intercostal space of __ side

Answer 20

2nd intercostal space on right side

Question 21

Pulmonary valve heart sound can be heard at __ intercostal space along the __ side

Answer 21

Second an left side

Question 22

Scapular spine is at level of __ rib and __ vertebra

Answer 22

3rd rib and T2

Question 23

Costal margin superior part is marked by the __ cartilage

Answer 23

7th

Question 24

Costal margin inferior part is marked by the __ cartilage

Answer 24

10th

Question 25

What is important in CPR?

Answer 25

Infrasternal angle

Question 26

Vertical line running through the inferior angle of the scapula

Answer 26

Scapular line

Question 27

Anterior axillary line is formed by lower border of __

Answer 27

Pectoralis major

Question 28

Posterior axillary line formed by tendon of __ muscle

Answer 28

Latissimus dorsi muscle

Question 29

Clavicular and scapular regions of upper thorax innervation

Answer 29

C3-4

Question 30

Upper thorax innervation

Answer 30

T1-5

Question 31

Xiphoid process region innervation

Answer 31

T6

Question 32

Lower parts of thorax and lateral/anterior abdominal wall innervation

Answer 32

T7-12

Question 33

Cephalic vein drains into the __ vein

Answer 33

Axillary vein

Question 34

Basilic vein continues as the __ vein

Answer 34

Axillary vein

Question 35

Hands in front pocket is synonymous with what muscle layer

Answer 35

External intercostals

Question 36

Hands in back pocket is synonymous with what muscle layer

Answer 36

Internal intercostals

Question 37

What muscle layer has incomplete layers with fibers arranged in a more horizontal direction?

Answer 37

Innermost intercostals

Question 38

Four of five slips that originate from the inferior sternum and extend superolaterally to internal surface of upper ribs is what muscle layer?

Answer 38

Transversus thoracis

Question 39

What is the fibrous tela subcutanea?

Answer 39

CT layer surrounding the entire mammary gland

Question 40

What is the fatty tela subcutanea?

Answer 40

Adipose tissue deep to fibrous layer

Question 41

What is the suspensory ligament of Cooper?

Answer 41

Bundles of collagen fibers in dermis and hypodermis

Question 42

Nipple, areola, and lactiferous lobules drain where?

Answer 42

Subareolar lymph node

Question 43

75% of lymph from breast drain here

Answer 43

Axillary lymph nodes (pectoral, central, apical)

Question 44

Remaining lymph (25%) drain here

Answer 44

Parasternal and abdominal lymph nodes

Question 45

Perilobular and interlobular lymphatic vessels drain into...

Answer 45

Subareolar plexus

Question 46

Subareloar plexus drains into...

Answer 46

Lateral lymphatic trunk and medial lymphatic trunk

Question 47

Lateral lymphatic trunk and medial lymphatic trunk drain into...

Answer 47

Pectoral group of axillary lymph nodes

Question 48

Pectoral group of axillary lymph nodes drain into...

Answer 48

Subclavian lymphatic channels