NS&F cardio; keyterms Flashcards

(48 cards)

1
Q

The largest artery. It receives blood from the left ventricle and
branches to all parts of the body (root aort/o).

A

AORTA

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2
Q

The semilunar valve at the entrance to the aorta

A

AORTIC VALVE

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3
Q

The point of a cone-shaped structure (adjective, apical).

A

APEX

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4
Q

A vessel that carries blood away from the heart. All except the pulmonary
and umbilical arteries carry oxygenated blood (root arter, arteri/o).

A

ARTERY

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5
Q

A small artery

A

ARTERIOLE

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6
Q

A small mass in the lower septum of the right atrium that passes impulses from the sinoatrial (SA) node toward the ventricles

A

ATRIOVENTRICULAR NODE (AV NODE)

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7
Q

A band of fibers that transmits impulses from the atrioventricular
(AV) node to the top of the interventricular septum. It divides into
the right and left bundle branches, which descend along the two sides of the septum; the bundle of His.

A

AV BUNDLE

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8
Q

An entrance chamber, one of the two upper receiving chambers of
the heart (root atri/o)

A

ATRIUM

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9
Q

The valve between the left atrium and the left ventricle; the mitral
valve

A

BICUSPID VALVE

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10
Q

The force exerted by blood against the wall of a vessel

A

BLOOD PRESSURE

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11
Q

Branches of the AV bundle that divide to the right and left sides of
the interventricular septum

A

BUNDLE BRANCHES

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12
Q

A microscopic blood vessel through which materials are exchanged
between the blood and the tissues

A

CAPILLARY

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13
Q

The part of the circulatory system that consists of the heart and the
blood vessels

A

CARDIOVASCULAR SYSTEM

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14
Q

The relaxation phase of the heartbeat cycle

A

DIASTOLE

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15
Q

The thin membrane that lines the chambers of the heart and covers
the valves

A

ENDOCARDIUM

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16
Q

The thin outermost layer of the heart wall

A

EPICARDIUM

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17
Q

Any sound produced as the heart functions normally

A

FUNCTIONAL MURMUR

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18
Q

The muscular organ with four chambers that contracts rhythmically
to propel blood through vessels to all parts of the body (root cardi/o)

A

HEART

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19
Q

Sounds produced as the heart functions. The two loudest sounds are
produced by alternate closing of the valves and are designated S1 and S2.

A

HEART SOUNDS

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20
Q

The large inferior vein that brings blood back to the right atrium of
the heart from the lower part of the body

A

INFERIOR VENA CAVA

21
Q

The valve between the left atrium and the left ventricle; the bicuspid
valve

22
Q

The thick middle layer of the heart wall composed of cardiac muscle

23
Q

The fibrous sac that surrounds the heart

24
Q

The vessel that carries blood from the right side of the heart to the
lungs

A

PULMONARY ARTERY

25
The system of vessels that carries blood from the right side of the heart to the lungs to be oxygenated and then back to the left side of the heart
PULMONARY CIRCUIT
26
The vessels that carry blood from the lungs to the left side of the heart
PULMONARY VEINS
27
The semilunar valve at the entrance to the pulmonary artery
PULMONIC VALVE
28
The wave of increased pressure produced in the vessels each time the ventricles contract
PULSE
29
The terminal fibers of the conducting system of the heart. They carry impulses through the walls of the ventricles.
PURKINJE FIBERS
30
A wall dividing two cavities, such as the chambers of the heart
SEPTUM
31
A small mass in the upper part of the right atrium that initiates the impulse for each heartbeat; the pacemaker
SINOATRIAL NODE (SA NODE)
32
The large superior vein that brings deoxygenated blood back to the right atrium from the upper part of the body
SUPERIOR VENA CAVA
33
The system of vessels that carries oxygenated blood from the left side of the heart to all tissues except the lungs and returns deoxygenated blood to the right side of the heart
SYSTEMIC CIRCUIT
34
The contraction phase of the heartbeat cycle
SYSTOLE
35
The valve between the right atrium and the right ventricle
TRICUSPID VALVE
36
A structure that keeps fluid flowing in a forward direction (root valv/o, valvul/o)
VALVE
37
A vessel that carries blood back to the heart. All except the pulmonary and umbilical veins carry blood low in oxygen (root ven, phleb/o).
VEIN
38
A small cavity. One of the two lower pumping chambers of the heart (root ventricul/o).
VENTRICLE
39
a small vein
VENULE
40
A tube or duct to transport fluid (root angi/o, vas/o, vascul/o)
VESSEL
41
The thin plasmalike fluid that drains from the tissues and is transported in lymphatic vessels (root lymph/o)
LYMPH
42
A small mass of lymphoid tissue along the path of a lymphatic vessel that filters lymph (root lymphaden/o)
LYMPH NODE
43
The system that drains fluid and proteins from the tissues and returns them to the bloodstream. This system also aids in absorption of fats from the digestive tract and participates in immunity.
LYMPHATIC SYSTEM
44
The lymphatic duct that drains fluid from the upper right side of the body
RIGHT LYMPHATIC DUCT
45
A large reddish-brown organ in the upper left region of the abdomen. It filters blood and destroys old red blood cells (root splen/o).
SPLEEN
46
The lymphatic duct that drains fluid from the upper left side of the body and all of the lower portion of the body
THORACIC DUCT
47
A gland in the upper part of the chest beneath the sternum. It functions in immunity (root thym/o).
THYMUS GLAND
48
Small masses of lymphoid tissue located in the region of the throat
TONSILS