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107 exam 4 review

Total questions: 54

Worksheet time: 27mins

Name
Class
Date
1.

Where does the cardiac impulse start?

a)

SA node

b)

purkinje fibers

c)

bundle of His

d)

AV node

e)

AV bundle

2.
Blood from the right atrium will flow next to the
a)
left atrium
b)
right ventricle
c)
left ventricle
d)
aorta
3.
What comes first in the cardiac cycle?
a)
isovolumetric ventricular relaxation
b)
atrial systole
c)
passive ventricular filling
d)
ventricular ejection
4.
Which factor does not determine cardiac output?
a)
heart rate
b)
stroke volume
c)
blood pressure
5.
Pressure in the ventricles becomes highest during which phase of the cardiac cycle?
a)

isovolumetric ventricular relaxation

b)

atrial systole

c)

passive ventricular filling

d)

ventricular ejection

e)

isovolumetric contraction

6.
Anxiety, fear and anger cause the heart to beat ____
4 lines
7.

In which area of the brain is the cardiac center located?

a)

Frontal lobe

b)

Pons

c)

Diencephalon

d)

Medulla

8.
Which system does the cardiac acceleratory center activate in response to emotional stress or increased physical activity?
a)
Sympathetic nervous system
b)
Central nervous system
c)
Parasympathetic nervous system
d)
Autonomic nervous system
9.
Heart valves open and close in response to:
a)
Papillary muscles contract and relax to open and close the valves.
b)
Chordae tendineae contract and relax to open and close the valves.
c)
As the walls of the heart’s chambers stretch or relax, they send nervous impulses to the valves, stimulating them to open or close.
d)
pressure changes
10.
Which blood vessels allow for nutrient exchange?
4 lines
11.

Which blood vessels have lots of elastic tissue?

4 lines
12.
Which blood vessels have one way valves?
4 lines
13.
What happens as blood is transported from the aorta to the capillaries?
a)
pressure increases
b)
Flow increases
c)
Velocity increases
d)
pressure decreases
14.
blood flow is slowest in which type of blood vessel?
4 lines
15.
At rest, skeletal muscle receives ___% of the blood as it does during strenuous exercise
a)
10
b)
50
c)
90
d)
70
16.
Which process pushes plasma and dissolved nutrients through the arterial end of the capillary wall?
a)
Diffusion
b)
Colloidal pressure
c)
Filtration
d)
Osmosis
17.
Which process moves oxygen and carbon dioxide through the arterial end of the capillary wall?
a)
Diffusion
b)
Colloidal pressure
c)
Filtration
d)
Osmosis
18.
What is the function of the pulmonary circulation?
a)
To bring deoxygenated blood to the heart for circulation to the lungs
b)
To bring deoxygenated blood to the alveoli for gas exchange
c)
To meet the metabolic needs of the pulmonary tissue
d)
To meet both the metabolic needs of the pulmonary tissue and bring blood to the alveoli
19.
The maximum pressure generated during ventricular contraction is called
a)
systolic
b)
diastolic
c)
areteiole
d)
stroke volume
20.
What effect does reducing peripheral resistance have?
a)
It decreases blood flow and increases blood pressure.
b)
It increases cardiac output.
c)
It increases blood flow and decreases blood pressure.
d)
It decreases cardiac output and increases blood pressure.
21.
What has the greatest effect on peripheral resistance?
a)
blood viscosity
b)
stroke volume
c)
blood vessel diameter
d)
cardiac output
22.

vasodilation decreases blood pressure by

a)

It decreases blood volume

b)
It increases cardiac output.
c)

lowering peripheral resistance

d)

It decreases cardiac output

23.
What mechanisms assist venous return?
a)
One-way valves, skeletal muscle contractions, pressure changes during breathing
b)
Skeletal muscle contractions, large-diameter lumen, thickness of the tunica media in medium-sized veins
c)
Pressure changes during breathing, one-way valves, thickness of the tunica media in medium-sized veins
d)
One-way valves, increasing diameter of veins, peripheral resistance
24.
What is a purpose of Peyer’s patches?
a)
Produce T cells
b)
Monitor bacterial populations within the intestine
c)
Form a protective circle at the back of the throat to guard against pathogens entering the body
d)
Serve as a reservoir for beneficial gut bacteria
25.

What organ removes pathogens and old red blood cells from the blood?

4 lines
26.
What is a primary function of lymph nodes?
a)
Remove pathogens from the blood
b)
Remove pathogens from lymph
c)
Separate lymphatic fluid from plasma
d)
Destroy old red blood cells
27.
The skin and mucous membranes are part of the body’s ____ line of defense.
a)
1st
b)
2nd
c)
3rd
d)
4th
28.

_____________triggers a cascade of chemical reactions that result with the destruction of a bacterium.

a)

interferon

b)

Complement

c)

pyrogens

d)

inflammation

29.

A cell that is infected by a virus will produce ______ which can protect neighboring cells

a)
Complement
b)
Interferon
c)

antibodies

d)
Neutrophils
30.
Which of the following is associated with specific immunity?
a)
Complement
b)
Interferon
c)

antibodies

d)
Neutrophils
31.
cellular immunity destroys pathogens ______ the cell
4 lines
32.
humoral immunity destroys pathogens ____ the cell.
4 lines
33.
What is the main muscle responsible for pulmonary ventilation?
4 lines
34.
The inspiratory and expiratory centers are located in the
4 lines
35.
How is most of the carbon dioxide in the body transported?
a)
Dissolved in plasma
b)
Bound to hemoglobin to form carbaminohemoglobin
c)
Carried in the form of bicarbonate ions
d)
In the form of carbonic acid
36.
What is the filtration unit of the kidney?
4 lines
37.

most nutrients are reabsorbed in the:

a)

Loop of Henle

b)

proximal convoluted tubule

c)

distal convoluted tubule

d)

Collecting duct

38.
atrial natriuretic peptide (ANP) does what to blood pressure?
4 lines
39.
Air moves into the lungs when
a)
alveolar pressure is less than atmospheric
b)
alveolar pressure is greater than atmospheric
40.
Aldosterone causes reabsorption of?
a)
sodium
b)
potassium
c)
glucose
d)
chloride
41.
What takes urine from the kidneys to the bladder?
4 lines
42.

What substance will cause a fever?

a)

pyrogens

b)
Interferon
c)

antibodies

d)
Neutrophils
43.

Injecting a vaccine of a dead or weakened pathogen imparts which type of immunity?

a)

Artificial active immunity

b)

Natural active immunity

c)

Natural passive immunity

d)

Artificial passive immunity

44.

Being exposed to a pathogen and getting sick imparts which type of immunity?

a)

Artificial active immunity

b)

Natural active immunity

c)

Natural passive immunity

d)

Artificial passive immunity

45.

a baby acquiring antibodies through breastfeeding imparts which type of immunity?

a)

Artificial active immunity

b)

Natural active immunity

c)

Natural passive immunity

d)

Artificial passive immunity

46.

Which type of antibody is the most abundant?

a)

IgA

b)

IgE

c)

IgG

d)

IgM

47.

Which type of antibody is involved in allergic reactions?

a)

IgA

b)

IgE

c)

IgG

d)

IgM

48.

which type of T cell remembers the pathogen in case of a future invasion

a)

helper

b)

cytotoxic

c)

memory

d)

plasma

49.

which type of T cell directly kills foreign cells

a)

helper

b)

cytotoxic

c)

memory

d)

plasma

50.

oxygen moves into the blood and carbon dioxide moves out at the

a)

tissue cells

b)

respiratory membrane

c)

trachea

d)

bronchi

51.

________Pick up water and solutes reabsorbed by the renal tubules

a)

vasa recta

b)

peritubular capillaries

c)

afferent arterioles

d)

efferent afrterioles

52.

which are functions of the urinary system

a)

cleansing the blood of wastes

b)

adjusting blood pH

c)

regulating blood pressure

d)

producing hormones

53.

which are functions of the respiratory system

a)

maintaining acid base balance

b)

speech

c)

smell

d)

bringing in oxygen and getting rid of carbon dioxide

54.
What has the strongest effect on breathing rate?
a)
increasing CO2 levels
b)
decreasing oxygen levels
c)
increased stretch of the lungs
d)
pain

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