L15

Question 1

The thoracic wall consist of (layers)

Answer 1

Skin
Nerve
Vessels
Muscles
Bones
Cartilage

Question 2

Function of the thoracic wall (4)

Answer 2

1-Protecting the thoracic and abdominal organs
2-Resisting the negative internal pressures by the lungs and inspiratory movements
3-support the weight if upper limbs
4-attachment for many muscles .

Question 3

What type of skeleton is the thoracic cage?

Answer 3

Osseocartilagenous

Question 4

The thoracic skeleton includes
___ ribs
___costal cartilages
___ IVDs

Answer 4

12 pair
12 thoracic vertebrae
12

Question 5

Ribs and cartilages are separated by____ occupied by

Answer 5

Intercostal spaces
Muscles-vessels-nerves

Question 6

Reinforces the thoracic cage

Answer 6

Ribs

Question 7

of:

True ribs
False ribs
Floating ribs
Typical ribs
Atypical ribs

Answer 7

1-7
8-12
11,12
3-9
1,2,10,11,12

Question 8

Has 2 facets

Answer 8

Typical ribs

Question 9

How is a typical rib joint to the vertebra?

Answer 9

By the 2 facets, 1 with its level, and one with the vertebra above it.

Question 10

Grooves in the 1st rib (atypical) is for

Answer 10

Subclavian vein and artery

Question 11

Mention the 4 structures in superior aperture

Answer 11

Trachea
Esophagus
Vessels
Nerves

Question 12

Boundaries of the superior thoracic aperture
Posterior
Anterior
Lateral

Answer 12

T1
Superior border of the manubrium
1st pair of ribs and their costal cartilages

Question 13

_____ encloses the inferior thoracic aperture

Answer 13

Diaphragm

Question 14

Structures passing from the thorax to the abdomen include (3)

Answer 14

IVC
Esophagus
Aorta

Question 15

Boundaries of the inferior thoracic aperture
Posterior
Posterolaterally
Anteriolaterally
Anteriorly

Answer 15

T12
11,12 ribs
Fused costal cartilages of rib 7 8 9 10
Xiphisternal joint

Question 16

Serratus anterior muscle is attached to rib #?
EXAM

Answer 16

2

Question 17

The thoracic cavity has three main compartments what are they

Answer 17

2 lateral: pulmonary cavities
1 central: mediastinum

Question 18

lines the pulmonary cavities, mediastinum and diaphragm

Answer 18

Endothoracic Fascia

Question 19

space between the visceral and parietal layers of pleura

Answer 19

Pleural cavity

Question 20

Composed of a capillary layer of serous pleural fluid

Answer 20

Pleural cavity

Question 21

What is the function of the serous fluid in the pleural (2)

Answer 21

Lubrication during respiration
Surface tension for cohesion to the thoracic wall

Question 22

The parietal pleura consist of 4 parts what are they

Answer 22

Costal
Mediastinal
Daiphragmic
Cervical

Question 23

At which vertebral lever does the
Aorta
Esophagus
IVC
Pass

Answer 23

T12
T10
T8

Question 24

Mediastinum is occupied by the viscera between the___ cavities

Answer 24

Pleural cavities

Question 25

Covered on each side by mediastinal pleura and contains all the thoracic viscera except the lungs

Answer 25

Mediastinum

Question 26

Describe the location of the mediastinum

Answer 26

Extends from the superior thoracic aperture to the diaphragm inferiorly

From the sternum and costal cartilages to the body of the vertebra

Question 27

Describe mediastinum’s mobility

Answer 27

Highly mobile

Question 28

extends between the superior thoracic aperture to the horizontal thoracic plane that passes through the sternal angle anteriorly and the IV disc of the T4-T5 posteriorly

Answer 28

Superior mediastinum

Question 29

Superior mediastinum extends __ vertebral levels

Answer 29

5

Question 30

between the transverse plane and the diaphragm

Answer 30

Inferior mediastinum

Question 31

This mediastinum is from T5-T12

Answer 31

Posterior mediastinum

Question 32

Drains thoracic wall incase of obstruction of SVC or IVC

Answer 32

Azygous system

Question 33

Describe the location of superior mediastinum

Answer 33

extends between the superior thoracic aperture to the horizontal thoracic plane that passes through the sternal angle anteriorly and the IV disc of the T4-T5 posteriorly