Cardiovascular

Question 1

What system is responsible for the internal transport of substances to and from cells?

Answer 1

Circulatory system

Question 2

Circulatory system consist of three parts what are they?

Answer 2

Blood, blood vessels, heart

Question 3

What is composed of water, solutes, and other elements in fluid connective tissue?

Answer 3

Blood

Question 4

What are the tubules of different sizes that transport blood?

Answer 4

Blood vessels

Question 5

What is the muscular pump providing pressure necessary to keep blood flowing?

Answer 5

Heart

Question 6

Circulatory system can be either _____ or _______?

Answer 6

Open or closed

Question 7

Animals have closed systems, where what two things are continuously connected?

Answer 7

Heart and blood vessels

Question 8

As blood moves through the circulatory system from larger tubules through smaller ones, the rates does what?

Answer 8

Slows down

Question 9

The flow of blood in the _____ is quite slow.

Answer 9

Capillary beds

Question 10

Capillary beds are the?

Answer 10

Smallest tubules in the body

Question 11

What is a supplementary system, cleans up excess fluids, proteins, and returns them to the circulatory system?

Answer 11

Lymph vascular system

Question 12

All blood vessels walls consist of three layers, what are they?

Answer 12

Tunica intima, tunica media, tunica adventitia

Question 13

What is the innermost layer of blood vessel walls?

Answer 13

Tunica intima

Question 14

What is the inner/middle layer of the blood vessel wall?

Answer 14

Tunica media

Question 15

What is the outer layer of the blood vessel wall?

Answer 15

Tunica adventitia

Question 16

Includes aorta, major branches. Tunica media has more elastin than any other vessels. Largest vessels in arterial system ?

Answer 16

Elastic arteries

Question 17

Which artery function: stretch when blood is forced out of the heart and recoils under low pressure?

Answer 17

Elastic artery function

Question 18

Includes arteries that branch off from elastic arteries. Tunica media has more smooth muscle cells and fewer elastic fibers compared to elastic arteries?

Answer 18

Muscular arteries

Question 19

Which artery function: regulate blood flow by vasoconstriction or vasodilation?

Answer 19

Muscular artery function

Question 20

Tiny vessels that lead to capillary beds. Tunica media is thin but composed of smooth muscle cells?

Answer 20

Arterioles

Question 21

Which artery function: primary vessels involved in vasoconstriction/ vasodilation. Control blood flow to capillaries?

Answer 21

Arteriole function

Question 22

Tiny vessels that exit capillary beds. Thin, porous walls, few muscle cells and elastic fibers?

Answer 22

Venules

Question 23

Which artery function: empty blood into larger veins?

Answer 23

Venules

Question 24

Thin tunica media and tunica intima. Wide lumen and valves prevent back flow of blood?

Answer 24

Veins

Question 25

Which artery function: carry blood back to the heart?

Answer 25

Vein function

Question 26

Blood helps maintain healthy internal environment by _____ raw materials to cells and _______ waste products?

Answer 26

Carrying/ removing

Question 27

Blood also helps stabilize internal pH and host various kinds of _______?

Answer 27

Infection fighters

Question 28

An adult human has how many quarts of blood?

Answer 28

5 quarts

Question 29

Blood is composed of?

Answer 29

Red & white blood cells, plasma, and platelets.

Question 30

Plasma constitutes over _____ of the blood volume?

Answer 30

Half

Question 31

Plasma is mostly water and serves as a?

Answer 31

Solvent

Question 32

What contains plasma proteins, ions, glucose, amino acids, hormones, and dissolve gases?

Answer 32

Plasma

Question 33

Red blood cells transport _____ to cells?

Answer 33

Oxygen

Question 34

Where do red blood cells form?

Answer 34

In the bone marrow

Question 35

How long can red blood cells live?

Answer 35

About 4 months

Question 36

Red blood cells are constantly being replaced by fresh ones, keeping total number relatively?

Answer 36

Stable

Question 37

White blood cells defend the body against _______ and remove various wastes?

Answer 37

Infection

Question 38

What are the five types of white blood cells?

Answer 38

Lymphocytes, neutrophils, monocytes, eosinophils, and basophils.

Question 39

What are fragments of stem cells and serve an important function of blood clotting?

Answer 39

Platelets

Question 40

The heart is a muscular pump made out of?

Answer 40

Cardiac muscle tissue

Question 41

The heart has how many chambers?

Answer 41

Four chambers

Question 42

Each halve of the chambers contain both a?

Answer 42

Atrium and ventricle

Question 43

The chamber halves are separated by a valve known as the?

Answer 43

AV (atrioventricular) valve

Question 44

The atrioventricular valve is located between the ventricle and artery leading _____ from the heart?

Answer 44

Away

Question 45

Valves keep the blood moving in a single direction and _______ any back flow into the chambers?

Answer 45

Prevent back flow

Question 46

Does the heart have its own circulatory system with its own coronary arteries?

Answer 46

True

Question 47

The heart functions by ______ and _____?

Answer 47

Contracting and relaxing

Question 48

______ contraction fills the ventricles and ______ contraction empties them, forcing circulation.

Answer 48

Atrial; Ventricular

Question 49

The sequence of atrial contraction and ventricular contraction is called the?

Answer 49

Cardiac cycle