Circulatory System

Q.

What is the normal pulse rate for women in each of the $1^{\mathrm{st}},2^{\mathrm{nd}},3^{\mathrm{rd}}$ trimesters of pregnancy?

Q.

What is the circulatory system in mammals?

Q.

What colour is the human heart?

Q.

Write differences between atria (auricle) and ventricles.

Q.

Exchange of various materials between the blood and body cells takes place by

1. arteries

2. veins

3. lungs

4. capillaries

Q.

Eustachian Valve occurs in

1. Middle ear

2. Right auricle of heart

3. Left ventricle of heart

4. Connection between middle ear and pharynx

Q.

Which of the following veins carries oxygenated blood?

1. Superior vena cava

2. Inferior vena cava

3. Pulmonary vein

4. Renal vein

Q. How many chambers does human heart have?

1. 1
2. 2
3. 4
4. 3

Q.

If oxygenated blood flows in the artery and deoxygenated blood flows in veins then why does blood comes in the left atrium through pulmonary veins and goes out from the right ventricle through the pulmonary artery in the heart?

Q. The synapse between a motor neuron and a skeletal muscle cell is called junction.

1. neurotransmitter
2. neuromuscular
3. neuroskeletal
4. neural

Q.

What are the different ways to keep the heart healthy.

Q.

Name the components of phloem tissue. Which of these components are dead? Mention its function.

Q.

The heart beats about 72 times per minute.

1. True
2. False

Q. Which of the following organs are protected by the ribcage?

1. Heart
2. Lungs
3. Kidneys
4. Brain

Q.

What is phloem? Write its components and function.

Q.

Are you aware that we have two auricles and two ventricles? Could you arrange them in a proper way?

1. Top left auricle - top right ventricle / bottom left auricle - bottom right ventricle

2. Top left auricle - top right auricle / bottom left ventricle - bottom right ventricle

3. Top left ventricle - top right auricle / bottom left auricle - bottom right ventricle

4. Top left ventricle - top right ventricle / bottom left auricle - bottom right ventricle

Q. Which of the following is incorrect regarding the circulation of blood?

1. Oxygenated blood flows from lungs to left atrium through pulmonary vein
2. Deoxygenated blood flows from right ventricle to the lungs through pulmonary artery
3. Doeoxygenated blood flows from left atrium to left ventricle
4. Deoxygenated blood flows from right atrium to right ventricle

Q.

Human heart is four chambered.

1. True
2. False

Q. The term used to define the condition of blood flowing in body cavities instead of blood vessels, is called _____ type and the generalised body coelom or cavity through which it flows, is called __________.

1. Open & Paracoel

2. Open & Haemocoel

3. Closed & Paracoel

4. Closed & Haemocoel

Q.

What is the pulmonary circulatory system?

Q.

Name the following:

The events during one heartbeat

Q.

Define pulse?

Q.

Blood pressure is high when the heart contracts.

1. True
2. False

Q.

Human heart has

1. One auricle and one ventricle

2. Two auricle and one ventricle

3. Two auricle and two ventricle

4. One auricle and two ventricles

Q. Describe the flow of blood through the heart during different phases of the cardiac cycle.

Q.

Blood vessel carrying blood from lungs to heart is

1. pulmonary artery

2. pulmonary vein

3. coronary artery

4. none of these

Q. Euglena is an unicellular organism which moves with a _________

1. cilia
2. flagellum
3. Pseudopodia
4. skin

Q. Why do we need haemoglobin?

Q. Circulatory system transports these throughout the body:

[Review question: Pg. No: 83]

1. All of these
2. Oxygen
3. Nutrient
4. Hormones

Q. In human beings the blood goes to the heart in one cycle once.

1. True
2. False