Thoracic Wall

Question 1

Superior boundary of the thorax?

Answer 1

First thoracic vertebra
First pair of ribs and costal cartilages
Manubrium

Question 2

Inferior boundary?

Answer 2

Twelfth thoracic vertebra
12th par of ribs and costal cartilages
xipihisternal joint
Larger of the two

Question 3

What dermatome level does the xiphoid process mark?

Answer 3

Dermatome 6

Question 4

What type of ribs are 1-7?

Answer 4

Vertebrosternal

Question 5

What type of ribs are 8-10?

Answer 5

Vertebrochondral

Question 6

What kind of ribs are 11 and 12?

Answer 6

Vertebral (floating)

Question 7

Where does the tubercle articulate?

Answer 7

transverse process of vertebra with same number

Question 8

Where does the head of the rib articulate?

Answer 8

Costal demifacets on adjacent thoracic vertebrae

Question 9

What plane is the first rib in?

Answer 9

Transverse plane, others are in coronal plane

Question 10

Where can superior and inferior costal demifacets be found?

Answer 10

TV 2-9

Question 11

First spinous process to be palpated?

Answer 11

C7

Question 12

Most prominent spinous process?

Answer 12

T1

Question 13

Describe the atypical vertebra.

Answer 13

T1 has a superior costal facet not demifacet
T10 has one pair of costal facets part on body and part on pedicle
T11 and T12 have one pair of costal facets on pedicles

Question 14

Describe typical rib articulation.

Answer 14

Heads articulate with demifacets of own number vertebra and the vertebra above and the intervertebral disc in between. The tubercle articulates with the transverse process of the same number verterbra.

Question 15

How does the transverse process arise?

Answer 15

From vertebra at the intersection lamina and pedicle

Question 16

Articular facets of TV are in ____ Plane.

Answer 16

Transverse

Question 17

Sternal angle is marked by ___.

Answer 17

rib two

Question 18

Where is apex heart beat heard?

Answer 18

fitfth intercostal space along midclavicular line

Question 19

Where is aortic valve heard?

Answer 19

Second intercostal space on right side of sternum

Question 20

Where is pulmonary valve heard?

Answer 20

Second intercostal space along left side of sternum

Question 21

Where is tricuspid heard?

Answer 21

fifth intercostal space right side of sternum

Question 22

Where is bicuspid heard?

Answer 22

Fifth intercostal space 10 cm to left of sternal line

Question 23

What level of the rib can you find scapular angle?

Answer 23

7th

Question 24

What vein drains the pectoral region?

Answer 24

axillary

Question 25

What muscle would be pierced first if you were stabbed on the anterior side to the left of the sternum?

Answer 25

Internal intercostal

Question 26

Where do external intercostals originate from?

Answer 26

extend from vertebrae posteriorly to junction of ribs and intercostal cartilages

Question 27

Where do internal intercostals begin?

Answer 27

lateral edge of sternum and extend toward vertebral column

Question 28

Where does the transversus thoracis originate?

Answer 28

inferior sternum and extends superolaterally to internal surface of upper ribs

Question 29

What are the contents of the intercostal space?

Answer 29

Superior to inferior intercostal vein, intercostal arteries (posterior and anterior), Intercostal nerve

Question 30

Where is the intercostal nerve derived from?

Answer 30

Ventral ramus of spinal nerve

Question 31

What is the retromammary space?

Answer 31

potential space between breast and pectoral fascia

Question 32

What is the sinus mammarumis?

Answer 32

space between two glands

Question 33

What attaches the mammary gland to the dermis?

Answer 33

Coopers ligament

Question 34

What is the Fibrous tela subcutanea?

Answer 34

CT surrounding entire gland

Question 35

Fatty Tela subcutanea?

Answer 35

Adipose tissue deep to fibrous layer

Question 36

Suspensory ligament of cooper?

Answer 36

bundles of collagen fibers in dermis and hypodermis

Question 37

What is the arterial supply to the breast?

Answer 37

Anterior perforating arteries(internal thoracic) | Lateral thoracic artery

Question 38

Where does 75% of lymph from breast go?

Answer 38

Axillary lymph nodes (pectoral, central, apical)

Question 39

What is the innervation to the breast?

Answer 39

Lateral mammary Intercostal nerves Medial mammary nerve Supraclavicular nerve