Body Fluids and Circulation Test

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Body Fluids and Circulation Test - 49

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Weekly Quiz Competition

Question 1
1 / -0

Cell fragments of megakaryotes yield

A
Erythrocytes

B
Granulocytes

C
Agranularcytes

D
Blood platelets/thrombocytes.

Solution

D. Blood platelets/thrombocytes
EXPLANATION: Cell fragments of megakaryotes yield blood platelets or thrombocytes. Platelets are small, clear and irregularly shaped. They are involved in the blood clotting process, which is necessary for the wound healing.
Question 2
1 / -0

Which blood transfusion is correct?

A
A $$\rightarrow$$ B

B
B $$\rightarrow$$ A

C
AB $$\rightarrow$$ A

D
O $$\rightarrow$$ B.

Solution

O blood group is known as universal donor as this type of blood group don't have any antigen but they possess antibody A and antibody B. They can give blood to person of any blood group.
So, the correct answer is D.
Question 3
1 / -0

Rh factor occurs in

A
All vertebrates

B
All reptiles

C
All mammals

D
Man and Rhesus monkey only.
Question 4
1 / -0

Which is not detected in ECG?

A
Arrhythmia

B
Myocardial infarction

C
Heart block

D
Valvular defects.
Question 5
1 / -0

Artery supplying blood to pericardium is

A
Brachial artery

B
Vertebel artery

C
Coronary artery

D
Internal mammary artery.

Solution

Visceral pericardium receives blood from coronary artery while parietal and fibrous pericardium get blood supply from internal thoracic (mammary artery).
Question 6
1 / -0

Which of the following is true about leucocytes?

A
They undergo diapedesis or squeeze through capillary walls

B
Sudden fall in number indicates cancer

C
Produced in thymus

D
Enucleate

Solution

A. Leucocytes or White blood cells (WBCs) can squeeze out through capillary walls into the tissue and reach the site of injury. This process is known as diapedesis.
B. Sudden fall in number of leucocytes is called leucopenia and this increases the chances of infection. Cancer is caused when the number of leucocytes is increased abnormally and this condition is called leukemia (the cancer of white blood cells).
C. Leucocytes are produced in bone marrow. B cells which are a type of lymphocytes (agranular leucocytes) are also produced in spleen and lymph nodes.
D. Leucocytes contain a nucleus and hence they are nucleated.
Hence, statement A is true.
So, the correct answer is 'They undergo diapedesis or squeeze through capillary walls'.
Question 7
1 / -0

In the given diagram, which blood vessel represents vena cava

A
a

B
b

C
c

D
d.
Question 8
1 / -0

Which one of the following blood vessel is single cell in thickness?

A
Venule

B
Arteriole

C
Blood capillary

D
Artery
Solution
- Blood capillaries are made up only of endothelial cells. It is a single layer in thickness.
- Arteries, Veins, Arterioles and Venules are made up of multiple types of cells in different layers.
So, the correct answer is 'Blood capilary'.
Question 9
1 / -0

ECG is employed for study of

A
Lung ailments

B
Brain defects

C
Heart problems

D
Kidney defects.

Solution

ECG stands for electro cardio diagram which is used to check heart's rhythm. It's also detect faults in the functioning of the heart..
So the correct answer will be option C.
Question 10
1 / -0

Find the correct explanations about blood not clotting inside the vessels
1. Speedy flow prevents accumulation of fibrin threads if formed
2. Absence of anticoagulant heparin having antithrombin activity
3. Smoothness of endothelial lining preventing rupturing of platelets and formation of thromboplastin
4. Presence of a layer of negetively charged protein over the inner surface of endothelium that attracts clotting factors.

A
1, 2, 3 correct

B
1, 2 correct

C
2, 4 correct

D
1, 3 correct.

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Re-Attempt Weekly Quiz Competition

Body Fluids and Circulation Test - 49

Result

Body Fluids and Circulation Test - 49

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Question 1

Erythrocytes

Granulocytes

Agranularcytes

Blood platelets/thrombocytes.

Solution

Question 2

A $$\rightarrow$$ B

B $$\rightarrow$$ A

AB $$\rightarrow$$ A

O $$\rightarrow$$ B.

Solution

Question 3

All vertebrates

All reptiles

All mammals

Man and Rhesus monkey only.

Question 4

Arrhythmia

Myocardial infarction

Heart block

Valvular defects.

Question 5

Brachial artery

Vertebel artery

Coronary artery

Internal mammary artery.

Solution

Question 6

They undergo diapedesis or squeeze through capillary walls

Sudden fall in number indicates cancer

Produced in thymus

Enucleate

Solution

Question 7

a

b

c

d.

Question 8

Venule

Arteriole

Blood capillary

Artery

Solution

Question 9

Lung ailments

Brain defects

Heart problems

Kidney defects.

Solution

Question 10

1, 2, 3 correct

1, 2 correct

2, 4 correct

1, 3 correct.

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