unit 5

Question 1

the ribs articulate with the thoracic spine at which types of joints

Answer 1

costotransverse & costovertebral

Question 2

which bone forms the middle portion of the anterior thoracic wall

Answer 2

sternum

Question 3

what structure forms the superior end of the sternum

Answer 3

manubrium

Question 4

what is the most inferior segment of the sternum

Answer 4

xiphoid process

Question 5

how many pairs of ribs form the human ribcage

Answer 5

12

Question 6

what is the correct order of the bronchial tree

Answer 6

trachea
primary bronchi
secondary bronchi
tertiary bronchi
bronchioles
alveoli

Question 7

what type of cartilage composes the trachea & bronchi

Answer 7

hyaline cartilage

Question 8

what is contained within the lung roots (hilum)

Answer 8

primary bronchi
pulmonary arteries
pulmonary veins

Question 9

how many primary bronchi are formed at the carina

Answer 9

2

Question 10

what does the trachea connect

Answer 10

upper respiratory tract to the lungs

Question 11

what term describes the ridges at which the trachea bifurcates in the primary bronchi

Answer 11

carina

Question 12

how many lobes does the right lung have

Answer 12

3

Question 13

what is the outer layer of the pleural sac called

Answer 13

parietal pleura

Question 14

what structure is located directly posteriorly to the trachea

Answer 14

esophagus

Question 15

where do the coronary arteries originate

Answer 15

base of the aorta

Question 16

what is the role of the capillary network in the coronary system

Answer 16

to feed the myocardium with nutrients & oxygen

Question 17

what separates the left atrium from the left ventricle

Answer 17

bicuspid (mitral) valve

Question 18

what vessels drain into the coronary sinus

Answer 18

cardiac veins

Question 19

what two vessels empty deoxygenated blood into the right atrium?

Answer 19

inferior vena cava & superior vena cava

Question 20

how does oxygenated blood return to the heart from the lungs

Answer 20

through the pulmonary veins

Question 21

what is the function of the pulmonic valve

Answer 21

to allow blood from the right ventricle to the pulmonary arteries

Question 22

what is the outermost layer of the heart tissue

Answer 22

pericardium

Question 23

what are the two branches of the left main coronary artery

Answer 23

circumflex & left anterior descending

Question 24

what structure prevents backflow of blood in the heart

Answer 24

heart valves

Question 25

what is the role of the atria in the heart

Answer 25

to collect blood returning to the heart

Question 26

what structure drains blood from the coronary arteries back into the right atrium

Answer 26

coronary sinus

Question 27

what is the primary function of the pulmonary trunk

Answer 27

to convey deoxygenated blood to the lungs

Question 28

from which chamber of the heart does the aorta extend

Answer 28

left ventricle

Question 29

which artery supplies the left lung with deoxygenated blood

Answer 29

left pulmonary artery

Question 30

where does oxygenated blood from the lungs enter the heart

Answer 30

left atrium

Question 31

what portion of the body is drained by the superior vena cava

Answer 31

upper half of the body

Question 32

what are the two arteries that branch from the brachiocephalic trunk

Answer 32

right subclavian & right common carotid