anatomy module 6 questions and answers

Question 1

Blood in the aorta

Answer 1

was ejected from the left ventricle, is rich in oxygen, and has just passed through a semilunar valve.

Question 2

The innermost layer of an artery or vein is called the

Answer 2

both the tunica intima and endothelium.

Question 3

The heart is supplied with blood by

Answer 3

arteries that branch directly from the aorta.

Question 4

The outermost layer of an artery or vein is called the

Answer 4

tunica externa

Question 5

Which of the following is not true of the atria?

Answer 5

Receive blood from arteries returning to the heart

Question 6

The heart is located

Answer 6

mostly to the left of the midline of the sternum

Question 7

The pericardium is composed of

Answer 7

serous membrane.

Question 8

The innermost layer of the heart is called the

Answer 8

endocardium.

Question 9

The electrical connectors between heart muscle cells are called

Answer 9

intercalated disks.

Question 10

Which white blood cells directly attack microbes?

Answer 10

T lymphocytes

Question 11

Plasma

Answer 11

carries almost all of the food to the cells.

Question 12

Pernicious anemia is caused by:

Answer 12

lack of vitamin B 12

Question 13

The red blood cell

Answer 13

has no nucleus

Question 14

Which white blood cells help protect the body from parasites?

Answer 14

Eosinophils

Question 15

The lack of this substance produced by the stomach lining can cause pernicious anemia.

Answer 15

Intrinsic factor

Question 16

A person exposed to hepatitis is given a shot of gamma globulin (an antibody against hepatitis) to keep him from coming down with the disease. This is an example of:

Answer 16

artificial passive immunity.

Question 17

Chemicals that are released from cells to act as direct agents of innate immunity are called:

Keyword c

Answer 17

cytokines

Question 18

Which of the following is not part of the body’s innate immunity?

Answer 18

Antibodies

Question 19

An important function of lymph nodes is

Answer 19

defense and the formation of white blood cells

Question 20

Lymph flowing through the lymphatic capillaries moves into larger vessels called

Keyword l and v

Answer 20

lymphatic venules

Question 21

Tonsils at the base of the tongue are called

Answer 21

lingual tonsils

Question 22

lymph nodes can be the size of a

Answer 22

pinhead or the size of a lima bean

Question 23

lymph can

Answer 23

carry cancer cells that can be trapped in lymph nodes, are a possible route for the spread of cancer, and carry bacteria to lymph nodes.

Question 24

The pulmonary vein returns oxygen-rich blood to the

Answer 24

left atrium.

Question 25

The correct sequence for the conducting system is

Answer 25

sinoatrial node, AV node, AV bundle, Purkinje fibers.

Question 26

In a normal ECG tracing, the T wave represents the

Answer 26

repolarization of the ventricles

Question 27

The volume of blood ejected from the ventricles during each beat is called

Answer 27

stroke volume

Question 28

Another name for the visceral pericardium is the

Answer 28

epicardium

Question 29

In a normal ECG tracing, the QRS complex represents the

Answer 29

depolarization of the ventricles

Question 30

The first blood vessel of systemic circulation is the

Answer 30

aorta

Question 31

Antigens cause immature B cells to

Answer 31

become plasma cells

Question 32

Lymphocytes can be found in

Answer 32

the lymph nodes, thymus, and liver

Question 33

These cells develop into macrophages once in the tissue

Answer 33

Monocytes

Question 34

The cisterna chyli

Answer 34

is part of the thoracic duct

Question 35

Globulins

Answer 35

assist in fighting infection

Question 36

Myeloid tissue is

Answer 36

also called red bone marrow and is important in the formation of red blood cells

Question 37

serum

Answer 37

is made from blood plasma

Question 38

The blood type with no antigens on the blood cell and both anti-A and anti-B antibodies in the plasma is

Answer 38

type O

Question 39

Blood usually accounts for about:

Answer 39

7% to 9% of body weight

Question 40

These plasma proteins are necessary for blood clotting:

Answer 40

both fibrinogen and prothrombin

Question 41

Which white blood cells are phagocytes?

Answer 41

Monocytes

Question 42

The approximate number of platelets in a cubic millimeter of blood is:

Answer 42

300,000

Question 43

A patient with a thicker-than-normal buffy coat may have:

Answer 43

an infection or leukemia

Question 44

A patient with a thinner-than-normal buffy coat may have

Answer 44

leucopenia

Question 45

Red bone marrow is found in greatest amounts in the

Answer 45

sternum and hipbone

Question 46

The “universal recipient” blood type is

Answer 46

type AB

Question 47

Blood that has just passed through the tricuspid valve is in the

Answer 47

right ventricle.

Question 48

Central venous blood pressure:

Answer 48

can be almost zero in the inferior vena cava

Question 49

Chordae tendineae

Answer 49

are attached to the atrioventricular valves

Question 50

Which of the following is not true of arteries?

Answer 50

They carry blood away from the capillaries.

Question 51

The spleen has a very rich blood supply and may contain

Answer 51

. 500 mL of blood

Question 52

Which of the following is not true of the thymus gland?

Answer 52

Most of the thymus gland is found in the neck

Question 53

Swelling, one sign of inflammation, is caused by:

Answer 53

increased vessel permeability.

Question 54

When an antigen and a complement protein combine

Answer 54

it helps kill cells on whose surface complement-binding takes place and the complement cascade is initiated.

Question 55

This cell is not considered an antigen-presenting cell

Answer 55

neutrophils

Question 56

Which tonsils are located on either side of the throat?

Answer 56

Palatine tonsils

Question 57

The spleen

Answer 57

helps filter out bacteria

Question 58

Which of the following cells is not a phagocyte?

Answer 58

Lymphocytes

Question 59

The immunity that is passed from mother to fetus is an example of

Answer 59

natural passive immunity.

Question 60

Antibodies are important in what type of immune response?

Answer 60

reacts faster than innate immunity

Question 61

The blood cells with the longest circulating life span are the:

Answer 61

nongranular white blood cells.

Question 62

Which of the following is not a granular leukocyte?

Answer 62

Monocyte

Question 63

In the final step in the blood-clotting process:

Answer 63

thrombin reacts with fibrinogen to form fibrin

Question 64

Polycythemia can be caused by

Answer 64

. too many red blood cells being made.

Question 65

Erythroblastosis fetalis

Answer 65

occurs in the case of an Rh-positive baby and an Rh-negative mother.

Question 66

The layer of the arteries and veins that contains smooth muscle tissue is the

Answer 66

tunica media

Question 67

The blood vessels that carry blood toward the heart are the:

Answer 67

veins

Question 68

The upper chambers of the heart are

Answer 68

receiving chambers

Question 69

When the left ventricle contracts, it pushes blood through a valve to the

Answer 69

aorta

Question 70

The first heart sound is the closing of the

Answer 70

tricuspid and mitral valves

Question 71

Blood that has just passed through the bicuspid valve is in the:

Answer 71

left ventricle.

Question 72

Blood in the pulmonary artery:

Answer 72

has just passed through a semilunar valve.