Body Fluids and Circulation Test

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Body Fluids and Circulation Test - 77

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Weekly Quiz Competition

Question 1
1 / -0

Name the blood vessel which carries oxygenated blood.
I. Pulmonary veins
II. Anterior vena cava
III. Pulmonary arteries

A
I only

B
II only

C
III only

D
I and II

E
II and III

Solution

Two pulmonary veins come from each lung and pass O$$_2$$ rich blood to left atrium. The anterior vena cava collects deoxygenated blood from the head, chest and arms and enters the right atrium. Pulmonary arteries carry deoxygenated blood from right ventricle to lungs.
Therefore, the correct answer is option A.
Question 2
1 / -0

Persons suffering from hypertension (high blood pressure) are advised a low-salt diet because

A
More salt is absorbed in the body of a patient with hypertension

B
High salt leads to water retention in the blood that further increases the blood pressure

C
High salt increases nerve conduction and increases blood pressure

D
High salt causes adrenaline release that Increases Wood pressure

Solution

When the salt is present in the blood, the water is reabsorbed by the kidneys and retained in the body. This water will cause an increase in the blood volume thereby, increasing the blood pressure. The person suffering from hypertension is advised to have a diet with low salt content so that there is no more increase in the blood pressure which can result in heart attack.
Thus, the correct answer is option B.
Question 3
1 / -0

In ECG, a prolonged PR interval indicates

A
Myocardial ischemia and hyperkalaemia

B
Cardiac arrhythmia and hypokalaemia

C
Coronary artery disease and rheumatic fever

D
Hyperkalaemia and hypokalacmia

Solution

The time from the beginning of the P wave (atrial depolarization) to the beginning of the QRS complex (ventricular depolarization) is the PR interval. This represents the time that it takes for the electrical impulse generated in the sinus node to travel through the atria and across the AV node to the ventricles. The normal PR interval is 0.12 to 0.20 seconds or 120 to 200 milliseconds (ms). A prolonged PR interval indicates delayed conduction of the SA nodal impulse to the ventricles and is called 1st degree AV block. A prolonged PR interval represents a delay in the time it takes for the signal to move across the atria at the top of the heart, which receive blood flowing in from the veins, into the ventricles at the bottom of the heart, which pump blood out into the arteries.
Question 4
1 / -0

Both hepatic and renal portal systems are found in

A
Amphibians, Reptiles, Mammals

B
Reptiles, Aves, Mammals

C
Cyclostomes, Fishes, Amphibians

D
Fishes, Amphibians, Reptiles

Solution

The renal portal system is derived from the posterior cardinal veins. Blood from the posterior part of the body flows into the renal portal veins, which passes into the caudal vena cava. The renal portal system is found only in fishes, amphibians, reptiles and birds. Thus, mammals have no renal portal system. All that remains in mammals is the azygous vein, which is an unpaired vein that drains most of the intercostal space on both sides of the mammalian thorax.
Question 5
1 / -0

Oxygen and carbon dioxide are transported in blood through.

A
Platelets and corpuscles

B
RBCs and WBCs

C
WBCs and Serum

D
RBCs and plasma
Solution
Oxygen transport is done exclusively by RBCs in the form of oxyhemoglobin. Carbon dioxide transport may be by 3 ways:
Dissolved in plasma (7%)
In the form of carbaminohemoglobin (23%)
As bicarbonates(70%)
Hence the correct option is D.
Question 6
1 / -0

Maximum amount of oxygen is lost from blood in __________________.

A
Arteries of body

B
Capillaries surrounding the alveoli

C
Left auricle of heart

D
Capillaries surrounding the tissues
Solution
Correct Answer:(D) Capillaries surrounding the tissues.

Explanation:
- The blood is transported to the various tissues in the body by capillaries.
- The difference between the concentration of oxygen between tissue and blood in capillaries is very high. Thus there is a gradient that allows the transport of oxygen from capillaries to the tissue cells.
- Hence, the correct answer is Capilliaries surrounding the tissues.
Question 7
1 / -0

Which of these are granulocytes?

A
Neutrophils, basophils, lymphocytes

B
Eosinophils, basophils, monocytes

C
Basophils, monocytes, lymphocytes

D
Neutrophils, eosinophils, basophils
Solution
A.Correct option -D
B.Explanation for correct option
WBCs (White blood cells) can be granulocytes or agranulocytes.
Granulocytes are of three types:
Eosinophils: These cells play important role in immunity and allergic reactions. These make about 1 - 5% of total leucocytes.
Basophils: These cells contain heparin, serotonin and histamine. These make about 0.5 - 2.7% of total leucocytes.
Neutrophils: These cells perform phagocytosis and also destroy bacteria. These make about 60 - 70% of total leucocytes.
Agranulocytes are of two types:
Lymphocytes: These cells are of two types, B lymphocytes that maintain humoral immunity and T lymphocytes which maintain cell-mediated immunity. These make about 20 - 40% of total leucocytes.
Monocytes: These cells are actively motile and phagocytic cells. These make about 2 - 7% of total leucocytes.
Question 8
1 / -0

Donor X and recipient Y belong to same blood group. Transfusion has led to RBC agglutination because

A
X is $$Rh^+$$, Y is $$Rh^-$$

B
X is $$Rh^-$$, Y is $$Rh^+$$

C
Both are $$Rh^+$$

D
Both are $$Rh^-$$.

Solution

Rh positive donor if transfuses blood to Rh negative recipient, then it can cause agglutination due to formation of Rh antibodies .
So, the correct option is A.
Question 9
1 / -0

Number of erthyrocytes formed per hour is

A
$$1\ million$$

B
$$10\ billion$$

C
$$100\ million$$

D
$$100\ billion$$

Solution

Erythrocytes are red blood cell containing hemoglobin, which imparts the red colour to blood. It transport oxygen and carbon dioxide in the tissues. In healthy adults, it is estimated that 100 billion red blood cells and 400 million white cells are produced each hour, i.e, 1 lakh million red blood cells are produced in one hour.
So, the correct answer is D.
Question 10
1 / -0

Yellow colour of faeces is on account of:

A
Excessive turmeric

B
Bile

C
Degradation product of haemoglobin

D
None of the above

Solution

Liver produces bile salts which have pigments called Bilirubin and Biliverdin, They are formed by the degradation of the hemoglobin, they impart the yellow colour to the faeces.
Thus, the correct answer is option C.

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Body Fluids and Circulation Test - 77

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Body Fluids and Circulation Test - 77

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Question 1

I only

II only

III only

I and II

II and III

Solution

Question 2

More salt is absorbed in the body of a patient with hypertension

High salt leads to water retention in the blood that further increases the blood pressure

High salt increases nerve conduction and increases blood pressure

High salt causes adrenaline release that Increases Wood pressure

Solution

Question 3

Myocardial ischemia and hyperkalaemia

Cardiac arrhythmia and hypokalaemia

Coronary artery disease and rheumatic fever

Hyperkalaemia and hypokalacmia

Solution

Question 4

Amphibians, Reptiles, Mammals

Reptiles, Aves, Mammals

Cyclostomes, Fishes, Amphibians

Fishes, Amphibians, Reptiles

Solution

Question 5

Platelets and corpuscles

RBCs and WBCs

WBCs and Serum

RBCs and plasma

Solution

Question 6

Arteries of body

Capillaries surrounding the alveoli

Left auricle of heart

Capillaries surrounding the tissues

Solution

Question 7

Neutrophils, basophils, lymphocytes

Eosinophils, basophils, monocytes

Basophils, monocytes, lymphocytes

Neutrophils, eosinophils, basophils

Solution

Question 8

X is $$Rh^+$$, Y is $$Rh^-$$

X is $$Rh^-$$, Y is $$Rh^+$$

Both are $$Rh^+$$

Both are $$Rh^-$$.

Solution

Question 9

$$1\ million$$

$$10\ billion$$

$$100\ million$$

$$100\ billion$$

Solution

Question 10

Excessive turmeric

Bile

Degradation product of haemoglobin

None of the above

Solution

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