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Anat > ch 15 Cardiovacular system > Flashcards

ch 15 Cardiovacular system Flashcards

1
Q

Sends oxygen poor blood to lungs and unloads Co2 , picks up oxygen
What type of circuit is this?

A

Pulmonary Circuit

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2
Q

Describe a series of events that happen to conduct a single heart beat
Hint: both atria….and ventricles

A

The atrial contracts(systole) and ventricle relaxes(diastole). Then atrial relaxes(diastole) and ventricles contracts(systole)

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3
Q

a recording of electrical changes in the myocardium during the cardiac cycle
What is this machine called?

A

Electrocardiogram
or aka ECG

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4
Q

What type of polarization does the T wave do and what action does it do?

A

VENTRICULAR Repolarization aka ventricles relaxing

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5
Q

-During Ventricular systole
-AV Valves Close
a. lupp b. dupp

A

LUPP

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6
Q

-During Ventricular diastole
-PULMONARY&AORTIC (semilunar) Valves CLOSE
a. lupp b. dupp

A

DUPP

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7
Q

Receive blood from the arteries, and carry it to the capillaries
a.Venules b.Veins c.Capillaries d.Arterioles

A

ARTERIOLES

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8
Q

Receive blood from venules, and carry it back to the atria of the heart
a.Venules b.Veins c.Capillaries d.Arterioles

A

VEINS

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9
Q

Sites of exchange of substances between the blood and the body cells
a.Venules b.Veins c.Capillaries d.Arterioles

A

CAPILLARIES

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10
Q

Blood vessels are organs of the cardiovascular system, what vessels count as this?

A

Capillaries, Venules, Arterioles, Arteries, Veins

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11
Q

Openings in cell membranes and between endothelial cells
Found in endocrine glands, kidneys, small intestine
a. Continuos b.Fenestrated c.Sinusoidal

A

Fenestrated

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12
Q

spaces between cells are small cavities
Discontinuous
Found in liver, spleen, and red bone marrow
a. Continuos b.Fenestrated c.Sinusoidal

A

Sinusoidal

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13
Q

-Hydrostatic pressure forces molecules through membrane
-Pressure is derived from ventricular contraction
What type of capillary exchange is this?

A

Filtration

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14
Q

-Most important method of transfer
-Lipid-soluble substances diffuse through cell membrane; water-soluble
substances diffuse through membrane channels and slits
What type of capillary exchange is this?

A

Diffusion

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15
Q

-Presence of impermeant solute, such as plasma proteins, inside capillaries
creates osmotic pressure
-Osmotic pressure draws water into capillaries, opposing filtration
-Colloid osmotic pressure refers to pressure due to plasma proteins
What type of capillary exchange is this?

A

Osmotic

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16
Q

THE _______ is a pacemaker because it initiates heart rhythmic contractionsaka heartbeat

A

Sinoatrial Node
SA

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17
Q

What other name does Subendocardial Conducting Network have?

A

PURkinje Fibers

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18
Q

System of specialized cardiac muscle fibers that conduct cardiac impulses from the SA node throughout the myocardium
What type of system is this?

A

CARDIAC CONDUCTION SYSTEM

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19
Q

What are the two types of Functional Syncytium

A

Atrial Syncytium & Ventricular Syncytium

20
Q

Describe how the Cardiac Cycle goes
Hint: Atria contracts and…

A

Atrial(aka atrium) Systole(aka contracts) AND Ventricular Diastole(aka relaxes)
vise versa
Ventricular Systole and Atrial Diastole

21
Q

Sequence of myocardial contraction and relaxation that constitutes a complete heartbeat.
What type of cycle is this?

A

Cardiac Cycle

22
Q

Diastole is?

A

Relaxation of the heart

23
Q

Systole is?

A

Contraction of the heart

24
Q

which vessels supply blood to myocardium?

A

Left and right coronary arteries and their branches!!

25
Q

What is a cardiac vein function?

A

Drains blood from myocardium

26
Q

Sends oxygen poor blood to lungs and unloads Co2 , picks up oxygen
What type of circuit is this?

A

Pulmonary Circuit

27
Q

Sends oxygen rich blood&nutrients to all body cells. Removes waste
What type of circuit is this?

A

Systemic Circuit

28
Q

What makes up the cardiovascular system

A

Heart + blood vessels

29
Q

Func of CV system?

A

TRANSPORT blood throughout the body

30
Q

What is the site of exchange?

A

Capillaries

31
Q

The pulmonary circuit is where ?

A

RIGHT side of heart

32
Q

Describe the secquence starting at the vena cava to LUNGS

A

Right atrium, tricuspid valve, right ventricle, left atrium, bicuspid valve, pulmonary V A L V E

33
Q

Membranous covering that encloses the heart & proximal ends of large blood vessels
What is this covering called?

A

Pericardium

34
Q

What is the pericardium composed of?

A

Dense connective tissue
why? this tissue hold and protects
to hold and protect heart

35
Q

This portion is between the visceral + parietal layers of serous pericardium
What is this called

A

Pericardial Cavity

36
Q

strands of collagen fibers that hold AV valves
What am I?

A

Chordae Tendinae or TENDINOUS CORDS

37
Q

Irregular muscular ridges in VENTRICLE WALL
What am I?

A

TRA Be CULAE CARNE-AE

38
Q

What is the function of the atrioventricular valves?

A

For blood to flow in ONLY 1 DIRECTION.
Atria to ventricles

39
Q

What Term Refers to a Mass of Cells That Act as a Unit?

A

Functional syncytium

40
Q

What is the function of the cardiovascular system?

A

TRANSPORT blood throughout the body

41
Q

List the layers of the heart wall from deepest to outer

A

ENDOcardium, Myocardium, PERIcardium

42
Q

The heart, and the proximal ends of the large blood vessels to which it attaches, are enclosed in a membranous sac called the ______.
a. pericardium b.myocardium c.mediastium

A

a. PERIcardium

43
Q

CORONARY ARTERIES SUPPLY BLOOD TO THE BLOOD MUSCLE just a note

A
44
Q

loose fitting sac around the heart is the

A

fibrous pericardium

45
Q

The great cardiac vein runs alongside the….
(hint: anterior)

A

anterior INTERventricular artery

Anat (16 decks)

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