Overview & Structure Rel. of the Thorax

Question 1

The intercostal nerves, arteries and veins are positioned _____ to the ______

Answer 1

deep to the internal intercostal muscles

Question 2

The intercostal veins, arteries, and nerves are all positioned directly _______ to the _______

Answer 2

inferior, ribs

Question 3

The internal thoracic artery is positioned _____ to the _____________

Answer 3

deep, first six costal cartilages

Question 4

What are the boundaries of the thoracic cavity?

Answer 4

• posterior- spine
• anterior- sternum
• inferior- diaphragm
• superior- superior thoracic aperture

Question 5

contents of the thoracic cavity

Answer 5

primary organs of respiratory and cardiovascular systems

Question 6

compartments of the thoracic cavity

Answer 6

right and left pleural cavities
inferior mediastinum
superior mediastinum
diaphragm ( not a compartment but a border)

Question 7

Components of the thoracic wall

Answer 7

skin
subcutaneous tissue
ribs
intercostal muscles

Question 8

functions of the thoracic wall

Answer 8

protection of viscera and internal structures
respiration
muscle attachment

Question 9

T4 spinal nerve- area of skin that is innervated

Answer 9

nipple

Question 10

T6 spinal nerve- area of skin that is innervated

Answer 10

skin over xiphoid

Question 11

T10 spinal nerve- area of skin that is innervated

Answer 11

area of skin over umbilicus

Question 12

What are the contents of the breast?

Answer 12

lobes of mammary glands,
fibrous tissue, 
fatty matrix,
blood vessels,
lymphatics,
nerves

EXTERNAL:
-nipple surrounded by areola

Question 13

What is the retromammary space?

Answer 13

Located deep to breast tissue

Space between breast and pec major