Lab 8 and 9

Question 1

diaphragm

Answer 1

phrenic nerve (C3-C5), musculophrenic artery, pushes the abdominal viscera inferiorly, increasing volume of thoracic cavity

Question 2

external intercostal

Answer 2

intercostal nerves T1-T11, intercostal arteries, keeps intercostal space from blowing out or sucking in during respiration (grain is pocket hands)

Question 3

internal intercostal

Answer 3

intercostal nerves T1-T11, intercostal arteries, keeps intercostal space from blowing out or sucking in during respiration (grain is batman)

Question 4

innermost intercostal

Answer 4

intercostal nerves T1-T11, intercostal arteries, keeps intercostal space from blowing out or sucking in during respiration (same brain as internal)

Question 5

Transversus thoracis

Answer 5

intercostal nerves 2-6, internal thoracic artery, compress thorax for forced expiration