unit 5 Flashcards

1
Q

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

A

costotransverse & costovertebral

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2
Q

which bone forms the middle portion of the anterior thoracic wall

A

sternum

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3
Q

what structure forms the superior end of the sternum

A

manubrium

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4
Q

what is the most inferior segment of the sternum

A

xiphoid process

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5
Q

how many pairs of ribs form the human ribcage

A

12

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6
Q

what is the correct order of the bronchial tree

A

trachea
primary bronchi
secondary bronchi
tertiary bronchi
bronchioles
alveoli

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7
Q

what type of cartilage composes the trachea & bronchi

A

hyaline cartilage

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8
Q

what is contained within the lung roots (hilum)

A

primary bronchi
pulmonary arteries
pulmonary veins

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9
Q

how many primary bronchi are formed at the carina

A

2

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10
Q

what does the trachea connect

A

upper respiratory tract to the lungs

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11
Q

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

A

carina

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12
Q

how many lobes does the right lung have

A

3

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13
Q

what is the outer layer of the pleural sac called

A

parietal pleura

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14
Q

what structure is located directly posteriorly to the trachea

A

esophagus

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15
Q

where do the coronary arteries originate

A

base of the aorta

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16
Q

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

A

to feed the myocardium with nutrients & oxygen

17
Q

what separates the left atrium from the left ventricle

A

bicuspid (mitral) valve

18
Q

what vessels drain into the coronary sinus

A

cardiac veins

19
Q

what two vessels empty deoxygenated blood into the right atrium?

A

inferior vena cava & superior vena cava

20
Q

how does oxygenated blood return to the heart from the lungs

A

through the pulmonary veins

21
Q

what is the function of the pulmonic valve

A

to allow blood from the right ventricle to the pulmonary arteries

22
Q

what is the outermost layer of the heart tissue

A

pericardium

23
Q

what are the two branches of the left main coronary artery

A

circumflex & left anterior descending

24
Q

what structure prevents backflow of blood in the heart

A

heart valves

25
what is the role of the atria in the heart
to collect blood returning to the heart
26
what structure drains blood from the coronary arteries back into the right atrium
coronary sinus
27
what is the primary function of the pulmonary trunk
to convey deoxygenated blood to the lungs
28
from which chamber of the heart does the aorta extend
left ventricle
29
which artery supplies the left lung with deoxygenated blood
left pulmonary artery
30
where does oxygenated blood from the lungs enter the heart
left atrium
31
what portion of the body is drained by the superior vena cava
upper half of the body
32
what are the two arteries that branch from the brachiocephalic trunk
right subclavian & right common carotid