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Human Anatomy and Physiology Practice Test 1

Pankaj Saha
November 26, 2022

This Human Anatomy and Physiology Practice Test Contains 250 Questions but every time you will get 20 different Questions to answer

1 / 20

What is the name of the substance that gives skin and hair its pigment?

Melanin

Nostrils

Keratin

Nostrils

2 / 20

Which of the following during an electrocardiogram is associated with hypokalemia?

U wave

QRS complex

PR segment

ST segment

3 / 20

Lactic acid

is a common end product of red blood cells.

is one of the normal end products of glycolysis.

is produced as a result of aerobic metabolism of glucose.

none of the above.

4 / 20

A ________is a modified bursa that surrounds and lubricates the tendons of certain muscles.

meniscus

articular cartilage

joint capsule

tendon sheath

5 / 20

Blood flows from the right ventricle of the heart into the

left ventricle

right atrium

inferior vena cava

pulmonary arteries

6 / 20

Which of the following sequences is truly a systemic circulation pathway?

Right ventricle ? pulmonary aorta ? tissues ? pulmonary veins ? left auricle

Left auricle ? left ventricle ? pulmonary aorta ? tissues ? right auricle

Left auricle ? left ventricle ? aorta ? arteries ? tissues ? veins ? right atrium

Right auricle ? left ventricle ? aorta ? tissues ? veins ? right auricle

7 / 20

Which of the following is not a cause of peripheral edema?

Increased capillary permeability

Decreased capillary output

Heart failure

Reduced levels of plasma proteins

8 / 20

Oxygenated blood is carried to the heart by the

carotid arteries

pulmonary veins

aorta

superior vena cava

9 / 20

A lack of blood glucose would have the greatest effects on

the heart.

the brain.

the liver.

skeletal muscles.

10 / 20

People living at sea level have around 5 million RBC per cubic millimeter of their blood whereas those living at an altitude of 5400 metres have around 8 million. This is because at high altitude

there is more UV radiation which enhances RBC production

people eat more nutritive food, therefore more RBCs are formed

people get pollution-free air to breathe and more oxygen is available

11 / 20

Saliva contains an enzyme that acts upon

starches

proteins

fats

minerals

12 / 20

Slow-twitch muscle fibers have only one of the following features:

many enzymes for glycolysis

slow onset of contraction

easily fatigued

a slow refractory period

13 / 20

Which of the following statements concerning complete oxidation of glucose is true?

Carbon dioxide is not released.

Oxygen is used during the Krebs cycle reactions.

Oxygen is released.

Carbon dioxide is released during the Krebs cycle reactions.

14 / 20

Which of the following is not a bradykinin effect?

Elevated vasodilation response

Elevated prothrombin secretion

Elevated capillary permeability

Elevated pain levels

15 / 20

Each of the following is located in the mediastinum EXCEPT the

aorta

heart

pancreas

trachea

16 / 20

Patients with which of the following diseases are treated with injections of vitamin B-12?

Diabetes mellitus

None of the above

Bell's palsy

Pernicious anemia

17 / 20

The difference between systolic and diastolic pressure in human is

200 mm Hg

80 mm Hg

40 mm Hg

120 mm Hg

18 / 20

Which of the following is not TRUEof the Krebs cycle?

Two molecules of FADH2 are produced per molecule of glucose.

Addition of acetyl CoA to oxaloacetic acid starts the cycle.

GTP is produced and converted to ATP.

Three molecules of NADH are produced per molecule of glucose.

19 / 20

Glycogen stored in which of the following tissues can be used to produce free glucose?

the heart.

the liver.

all of the above.

the skeletal muscle.

20 / 20

These bands of the sarcomere do not shorten during contraction

A bands

Z discs and A bands

I bands

H, I and M bands

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The average score is 40%

Pos.	Name	Score	Duration
1	Pankaj Saha	25 %	1 minutes 31 seconds