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Bio 224 Lecture > homework assignment #2 > Flashcards

homework assignment #2 Flashcards

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Biology 101 flashcards
1
Q

Blood returning to the heart from the pulmonary circuit first enters the __________.

A

left atrium

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2
Q

The ________ valve prevents backward flow into the left atrium.

A

bicuspid

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3
Q

The auricle is the __________.

A

ear-like extension of the atrium

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4
Q

The coronary sulcus is a groove that

A

marks the border between the atria and ventricles.

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5
Q

The superior portion of the heart where major blood vessels enter and exit is the

A

base

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6
Q

Muscular ridges on the inner surface of the ventricles are called

A

tribieculae carnae

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7
Q

The inferior point of the heart is called the

A

appex

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8
Q

Oxygen is added to blood as it flows through the ________ circuit.

A

pulmonary

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9
Q

Blood flowing in the vena cava will next enter the __________.

A

right atrium

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10
Q

The interventricular sulci and coronary sulcus

A
  • contain veins
  • contain fat
  • are grooves on the surface of the heart
  • contain arteries
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11
Q

The right atrium receives blood from the

A
  • superior vena cava
  • inferior vena cava
  • coronary sinus
  • systemic circuit
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12
Q

The blood vessel that branches to form a right common carotid and a right subclavian artery is the

A

brachiocephalic artery

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13
Q

The heart is actually (one, two, or three) pumps?

A

two pumps

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14
Q

Which chamber receives blood from the superior and inferior vena cavae?

A

right atrium

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15
Q

Which heart chamber receives blood from the pulmonary veins?

A

left atrium

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16
Q

Which heart chamber pumps unoxygenated blood out the pulmonary trunk?

A

right ventricle

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17
Q

Which chamber pumps oxygenated blood out the aorta to the systemic circuit?

A

left ventricle

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18
Q

The ________ is shared by the two ventricles.

A

interventicular septum

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19
Q

Blood leaves the right ventricle by passing through the

A

pulmonary valve

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20
Q

The heart lies within the ________ cavity.

A

pericardial

21
Q

The pulmonary semilunar valve prevents backward flow into the

A

right ventricle

22
Q

Compared to the right ventricle, which of these statements about the left ventricle is false?

A

it ejects more blood

23
Q

The right ventricle pumps blood to the

A

right and left lungs

24
Q

The visceral pericardium is the same as the

A

epicardium

25
Q

The marginal branch and posterior interventricular branch are branches of the

A

right coronary artery

26
Q

Contractions of the papillary muscles

A

prevent the atrioventicular valves from reversing the atria

27
Q

The ________ circuit carries blood to and from the lungs.

A

pulmonary

28
Q

The earlike extension of the atrium is the

A

auricle

29
Q

Which of these organs is not found in the mediastinum?

A

lung

30
Q

The left ventricle pumps blood to the

A

aorta

31
Q

The coronary sinus drains the ________ into the ________.

A

cardiac veins; right atrium

32
Q

If the connection between the SA node and AV node becomes blocked

A

the ventricles will beat more slowly

33
Q

The cusps (leaflets) of atrioventricular valves attach directly to

A

chordae tendineae

34
Q

The bicuspid or mitral valve is located

A

between the left atrium and left ventricle

35
Q

The fusion of the brachiocephalic veins forms the

A

superior vena cava

36
Q

The pulmonary trunk carries __________ blood __________ the lung.

A

deoxygenated; to

37
Q

An equivalent term for epicardium is

A

visceral pericardium

38
Q

Pulmonary veins carry blood to the

A

left atrium

39
Q

The pulmonary arteries carry blood to the

A

lungs

40
Q

Which of the following statements about the pulmonary circuit is FALSE?

A

the right and left pulmonary arteries carry oxygenated blood

41
Q

The ________ carry blood toward the heart.

A

veins

42
Q

Blood returning to the heart from the systemic circuit first enters the

A

right atrium

43
Q

The ________ carry blood away from the heart.

A

arteries

44
Q

The great and middle cardiac veins drain blood into the

A

coronary sinus

45
Q

The property of heart muscle to contract in the absence of neural or hormonal stimulation is called

A

automaticity

46
Q

The __________ valve prevents backward flow of blood into the left ventricle.

A

aortic

47
Q

Branches off the aortic arch include the

A

brachiocephalic trunk, left subclavian artery, and left common carotid artery

48
Q

The function of an atrium is to

A

collect blood then pump it to the ventricle

49
Q

The ________ covers the outer surface of the heart.

A

epicardium

Bio 224 Lecture (15 decks)

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