Layers of Blood Vessels

Q. Given below are four statements (i-iv) regarding human blood circulatory system. Choose the option representing the correct statements.
(i) Arteries are thick-walled and have narrow lumen as compared to veins
(ii) Angina is acute chest pain when the blood circulation to the brain is reduced
(iii) Persons with blood group AB can donate blood to any person with any blood group under ABO system
(iv) Calcium ions play a very important role in blood clotting

1. (i) and (ii)
2. (ii) and (iii)
3. (iii) and (iv)
4. (i) and (iv)

Q. Which among the following is lined with squamous epithelium?

1. Oesophagus
2. Intestine
3. Kidney tubules
4. Salivary gland

Q.

What is the importance of regular exercise?

1. It improves skin complexion.

2. It provides rest to the entire body.

3. It helps in growth of the body

4. It improves blood circulation.

Q. Question 5
Intestine absorbs the digested food materials. What type of epithelial cells is responsible for that?

(a) Stratified squamous epithelium
(b) Columnar epithelium
(c) Spindle fibres
(d) Cuboidal epithelium

Q.

Which of the following statement is false with respect to ciliated epithelium?

1. They have pillar shaped cells.

2. They are not found in the respiratory tract.

3. They push the mucus forward to clear it.

4. They show the presence of cilia.

Q.

Match the pictures that best describe the function of the components of blood given below.

1. I – A, II – B, III -C

2. I – B, II – C, III -A

3. I – C, II – B, III -A

4. I – C, II – A, III -B

Q. Observe the relationship between the first two words and then fill in the suitable word at fourth place.​
A. Smooth ER : Lipids : : Rough ER : _______​
B. Nucleus : Controlling centre : : Nucleolus : _______​

1. A - ATP, B - Energy generator
2. A - Proteins, B - Site of ribosome synthesis

Q.

Which of the following statement is false with respect to ciliated epithelium?

1. They push the mucus forward to clear it.

2. They show the presence of cilia.

3. They have pillar shaped cells.

4. They are not found in the respiratory tract.

Q. What is the treatment for varicose veins disorder?

Q.

Question 5
Intestine absorbs the digested food materials. What type of epithelial cells is responsible for that?

(a) Stratified squamous epithelium
(b) Columnar epithelium
(c) Spindle fibres
(d) Cuboidal epithelium

Q.

Match the pictures that best describe the function of the components of blood given below.

1. I – C, II – B, III -A

2. I – C, II – A, III -B

3. I – B, II – C, III -A

4. I – A, II – B, III -C