Boundaries of the Thoracic Cage

Question 1

The thorax is bounded superiorly by?

Answer 1

thoracic inlet (superior thoracic aperture).

Question 2

the thorax is bounded inferiorly by?

Answer 2

the thoracic outlet (inferior thoracic aperture) by the diaphragm

Question 3

the thorax is bounded anteriorly by?

Answer 3

sternum and costal cartilages

Question 4

the thorax is bounded posteriorly by?

Answer 4

vertebrae T1-12

Question 5

the thorax is bounded laterally by?

Answer 5

ribs 1-12

Question 6

which bones form the boundaries of the thoracic inlet?

Answer 6

manubrium of sternum, 1st ribs and their costal cartilages, t1 vertebra

Question 7

which bones/costal cartilages form the boundaries of the thoracic outlet?

Answer 7

T12 vertebra, 11th and 12th ribs and costal cartilages of ribs 7-10, xiphisternal joint

Question 8

which ribs/costal cartilages form the subcostal angle?

Answer 8

ribs 6-10

Question 9

which costal cartilages are directly attached to the sternum?

Answer 9

ribs 1-7

Question 10

which costal cartilages are indirectly attached to the sternum through attackment to preceding costal cartilages/

Answer 10

ribs 8-10

Question 11

which muscle is primarily used for breathing in a newborn?

Answer 11

abdominal