Exam 1

Question 1

What part of the artery wall is largely composed of connective tissue?

Answer 1

Tunica externa

Question 2

When smooth muscle is in a state of contractions, the vessel is in

Answer 2

Vasoconstriction

Question 3

What are the smallest blood vessels?

Answer 3

Capillaries

Question 4

What encircles the entrances to capallaries

Answer 4

Precapillary sphincter

Question 5

What is diffusion?

Answer 5

A process where transfers of bio chemicals occur through capillary walls.

Question 6

Why can o2 and CO2 easily move through most areas of cell membrane?

Answer 6

They are lipid soluble

Question 7

Filtration results when substances are forced through capillary walls by ______ pressure?

Answer 7

Hydrostatic

Question 8

The presence of plasma proteins in blood increase its ______ pressure as compared to tissue fluids.

Answer 8

Osmotic

Question 9

What vessels with large lumens also serve as blood reservoirs?

Answer 9

Veins

Question 10

What vessels carry blood away from the heart?

Answer 10

Arteries

Question 11

Which organ releases renin?

Answer 11

The kidneys

Question 12

Short term regulation of blood pressure is controlled by______.

Answer 12

The nervous system

Question 13

Peak blood pressure driven by ventricular contraction is called?

Answer 13

Systolic pressure

Question 14

What’s prevents back flow in a lymphatic vessel?

Answer 14

Valves

Question 15

What filters lymphatic fluid?

Answer 15

Lymph nodes

Question 16

The lymphatic trunk that drains the head and neck is called the ______ trunk.

Answer 16

Jugular

Question 17

The lymphatic trunk that drains the head and neck is called the ____ trunk.

Answer 17

Jugular

Question 18

What do lymph nodes carry tonight invading microorganisms?

Answer 18

Lymphocytes and macrophages

Question 19

Lymph enters a node through a ____ lymphatic vessel.

Answer 19

Afferent

Question 20

The lymph nodes associated with the lymphatic vessels that drain the lower limbs are located in the ___ region.

Answer 20

Inguinal

Question 21

What is the organ that filters lymph and blood?

Answer 21

The spleen

Question 22

Pyers patches, tonsils, and the dependents constitute this group

Answer 22

MALTs

Question 23

What is a cytotoxic and helper cell?

Answer 23

T cell

Question 24

What cell produces antibodies?

Answer 24

B Cell

Question 25

What is specific acquired immunity?

Answer 25

Adaptive

Question 26

What is nonspecific immunity you are born with?

Answer 26

Innate

Question 27

What type of immunity do you have through a vaccine or getting a disease?

Answer 27

Active

Question 28

What is a specified squired immunity?

Answer 28

Adaptive

Question 29

What type of immunity is it when it is passed from your mother?

Answer 29

Passive

Question 30

What is the process called when a cell engulfs a foreign substance?

Answer 30

Phagocytosis

Question 31

What substance is released when a cell is infected with a virus?

Answer 31

Interferons

Question 32

What is an important phagocyte of the lymph system?

Answer 32

Macrophage

Question 33

Where does the chordae tendinae originate?

Answer 33

The papillary muscle

Question 34

What prevents backflip from the right ventricle to right atria?

Answer 34

Tricuspid valve

Question 35

What membrane surrounds the heart?

Answer 35

Pericardial sac

Question 36

What prevents back from of left ventricle to atria?

Answer 36

The bicuspid/mitral valve

Question 37

What gives rise to left and right pulmonary arteries?

Answer 37

Pulmonary trunk

Question 38

Drains blood from myocardium into right atrium

Answer 38

Coronary sinus

Question 39

Inner lining of the heart chamber

Answer 39

Endocardium

Question 40

Largely composed of cardiac muscle tissue

Answer 40

Myocardium

Question 41

Space containing serous fluid to reduce friction during heartbeats?

Answer 41

Pericardial cavity

Question 42

What drains flood from the myocardial capillaries?

Answer 42

Cardiac vein

Question 43

What supplies blood to heart muscles?

Answer 43

Coronary artery

Question 44

What distributes blood to body organs except the lungs?

Answer 44

Aorta

Question 45

What is the term for heart relaxation?

Answer 45

Diastole

Question 46

What is the term for heart contraction?

Answer 46

Systole

Question 47

What is the phase of the cardiac cycle during ventricular systole when all valves are closed?

Answer 47

Isovolumetric contraction

Question 48

What is the phase of the cardiac cycle when blood is doing through the major vessels?

Answer 48

Ventricular ejection

Question 49

What is the location of the pacemaker cell?

Answer 49

Sinoatrial node

Question 50

Part of an ECG when the atria are depolarizing?

Answer 50

QRS complex

Question 51

What cell has a special leak channel to auto depolarize?

Answer 51

Pacemaker cells

Question 52

What is responsible for keeping the heart rate slow by innervating the nodes?

Answer 52

Parasympathetic division

Question 53

Amount of blood in the heart after venous return is?

Answer 53

EDV

Question 54

The amount of blood that leaves the heart in one pump

Answer 54

Stroke volume

Question 55

The amount of blood that leaves the heart in one minute?

Answer 55

Cardiac output.

Question 56

Heart sounds are caused by?

Answer 56

Closing of AV valves