Thoracic wall

Question 1

What is the function of the thorax?

Answer 1

protect thoracic and abdominal organ

• resist the negative internal pressure created by the elastic recoil of the lungs
• provide attachments for and support of the upper limbs.
• Provide the origin for some upper limb muscles and attachments for muscles of the abdomen, neck, back and respiration.

Question 2

Ribs 1-7 that attach from vertebrae to sternum?

Answer 2

True Ribs

Question 3

Ribs 8-10 have cartilage attached to the cartilage of ribs superior

Answer 3

False Ribs

Question 4

Ribs 11-12 and end in the musculature of the abdominal wall?

Answer 4

floating ribs

Question 5

What comprises the superior thoracic aperture?

Answer 5

1 thoracic vertbrae, 1st pair of ribs, and the superior border of the manubrium.

Question 6

What is held in the costal groove of the ribs?

Answer 6

Nerve, artery, and vein

Question 7

cardiac tamponade

Answer 7

fluid or gas build up in the pericardium. This can lead to slow or rapid compression of the heart.

Question 8

rotate at the costaltransverse joint

Answer 8

ribs 1-7

Question 9

glide at the costotranserve joint

Answer 9

ribs 8-10

Question 10

do not articutlate with the costotranserve joint

Answer 10

ribs 11-12

Question 11

1 joint is cartilaginous

joints 2-7 are synovial plane joints

Answer 11

sternocostal joints

Question 12

What are the layers of the intercostal muscles?

Answer 12

external, internal and innermost

Question 13

What is the function of the external intercostal

Answer 13

to elevate the ribs during forced inspiration

Question 14

breathing in:

Answer 14

External: contracts
Internal: relaxes

Question 15

Breathing out

Answer 15

External: relax
Internal: contract

Question 16

Subcostalis

Answer 16

blend with the interior intercostal muscles. Run interior to the thoracic cage

Question 17

Transversus Thoracis

Answer 17

dpresess the ribs and attaches to the sternum and on the inferior edges of the ribs