Circulation of Blood

Q.

Give reasons:

1. Ventricles have thicker muscular walls than atria.
2. The transport system in plants is slow.
3. The circulation of blood in aquatic vertebrates differs from that in terrestrial vertebrates.
4. During the daytime, water and minerals travel faster through xylem as compared to the night.
5. Veins have valves whereas arteries do not.

Q.

How does blood become deoxygenated?

Q.

Left atrium receives oxygenated blood from ______ .

Q.

Which side of the heart has oxygenated blood?

Q.

Name the instrument that can record electrical changes during heart beat?

__

Q.

Which instrument can record electrical changes during heart beat ?

__

Q.

What is the term used for the study of circulation of blood through our body?

1. Pulmonology

2. Cytology

3. Haemodynamics

4. Haematology

Q. State whether the following statements are true or false:
Statement 1: RBCs fight against germs that enter our body.
Statement 2: WBCs help in transportation of oxygen.

1. Statement 1: True; Statement 2: False
2. Statement 1: True; Statement 2: True
3. Statement 1: False; Statement 2: True
4. Statement 1: False; Statement 2: False

Q.

If blood flows through heart only once for completing one circulation it is called___.

Q.

Haemoglobin is present in _______ cells.

Q.

Why does bright red colour blood turn dark once circulation begins?

1. Red pigments get oxidised

2. $O_2$ is replaced by $N{H}_3$

3. Red pigment absorbs copper salts

4. $O_2$ is replaced by $C{O}_2$

Q. In the human heart, oxygenated blood flows through the right side and carbon dioxide rich blood flows through the left side.

1. True
2. False

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Q.

Carbon monoxide poisoning happens dues to the formation of __________ when carbon monoxide reacts with Hb.

1. Carries hormones from pituitary to hypothalamus.

2. Carries nutrients to hypothalamus.

3. Carries nutrients to the hypophysis.

4. Carries hormones from hypothalamus to pituitary.

Q.

What is the function of heart in our body? How many chambers does the human heart have?

Q. The blood vessel which carries oxygenated blood from the lungs to the heart is:
(a) main artery
(b) pulmonary artery
(c) main vein
(d) pulmonary vein

Q.

Is the Heart blue?

Q. Right side of the heart pumps oxygenated blood.

1. True
2. False

Q.

Oxygenated blood goes out of the heart from ___

1. Left side of heart

2. Right side of heart

3. Anterior side of heart

4. Posterior side of heart

Q. The E.C.G. is used to detect
(a) heart attack
(b) heart block
(c) coronary thrombosis
(d) all the above

Q. Why is the heart divided into various chambers?

1. To ensure the efficient supply of oxygen in the body
2. To avoid mixing up of oxygenated and deoxygenated blood
3. To ensure mixing up of oxygenated and deoxygenated blood.
4. To keep the body warm

Q.

When blood test is performed on a patient it reveals high level of carboxyhemoglobin. This observation confirms increased exposure to:

1. CO₂

2. Carbon Monoxide

3. Carbon Sulphide

4. Chloroform

Q. Blood circulation was highlighted first by

1. William Harvey
2. De Castello and Sturli
3. Dr. Christian Bernard
4. Karl Land Steiner

Q. Which animal has a single circulatory system?

1. Human
2. Fish
3. Frog
4. Bird

Q. Rupturing of alveoli is a condition seen in ________.

1. cirrhosis
2. emphysema
3. hypoxia
4. gastritis

Q.

(i)___ carries blood from digestive tract to liver and (ii)_____carries blood from the liver to the inferior vena cava.

1. (i)Hepatic vein, (ii)hepatic portal vein

2. (i)Hepatic artery, (ii) hepatic portal vein

3. (i)Hepatic portal vein, (ii)hepatic vein

4. (i)Hepatic portal vein, (ii)hepatic artery

Q. _________ is the first chamber of heart to recieve oxygenated blood.

1. Right ventricle
2. Left ventricle
3. Right atrium
4. Left atrium

Q. Does arteries and veins, except pulmonary arteries and pulmonary veins, go to lungs for providing oxygenated blood/oxygen to lungs/any lung cells ? Or does it take the oxygen directly from the inhaled air instead of oxygen from blood ?

Q.

What do you mean by systolic and diastolic blood pressure?

Q.

Atrio-ventricular septum is made of _______________ tisue:

1. Neural

2. Epithelial

3. Fibrous

4. Glandular