L13

Question 1

what is the main muscle of respiration?

Answer 1

diaphragm

Question 2

what components of the upper respiratory tract make up the pharynx?

Answer 2

nasopharynx, oropharynx, laryngopharynx

Question 3

what are the 3 general components of the upper respiratory tract?

Answer 3

nasal cavity, pharynx, larynx

Question 4

what are the 5 features of the lower respiratory tract?

Answer 4

trachea, left and right primary bronchi, bronchioles, alveolar ducts, alveoli

Question 5

what are the 5 accessory muscle (groups) of respiration (when exercising)?

Answer 5

sternomastoid, scalenus, external intercostals, internal intercostals, external oblique abdominal rectus

Question 6

what does the sternomastoid do?

Answer 6

elevates sternum

Question 7

what do the scalenus muscles do?

Answer 7

elevate upper ribs

Question 8

what do external intercostals do?

Answer 8

elevate ribs

Question 9

what do internal intercostals do?

Answer 9

depress ribs

Question 10

what do external oblique abdominals do?

Answer 10

depress lower ribs and compress viscera