Structure of the Skin

Q.

Give 5 Functions of the skin.

Q.

Match the column (A) with the column (B) [3 MARKS]

$\begin{array}{cc}\text{(A)}& \text{(B)}\\ \text{(a) Fluid connective tissue}& \text{(i) Subcutaneous layer}\\ \text{(b) Filling of space inside the organs}& \text{(ii) Cartilage}\\ \text{(c) Straited muscle}& \text{(iii) Skeletal muscle}\\ \text{(d) Adipose tissue}& \text{(iv) Areolar tissue}\\ \text{(e) Surface of joints}& \text{(v) Blood}\\ \text{(f) Stratified squamous epithelium}& \text{(vi) Skin}\end{array}$

Q.

Which layer of skin contains blood vessels?

1. Fat layer

2. Epidermis

3. Dermis

4. Skin does not have blood vessels

Q. The layer of skin that helps in maintaining the normal body temperature is called

1. epidermis
2. hyperdermis
3. dermis
4. hypodermis

Q.

Which layer of skin has a network of blood vessels and nerve fibres directly below it?

1. Epidermis

2. Dermis

3. Subcutis

4. Hypodermis

Q.

The pigment melanin is present in inner layers of skin epidermis.

1. True
2. False

Q. Match the parts of the cross section of leaf depicted in the image with the descriptions given.

a. Spongy Parenchyma
b. Palisade parenchyma
c. Lower epidermis
d. Upper epidermis
e. Cuticle

1. i - e, ii - d, iii - b, iv - c, v - a
2. i - a, ii - d, iii - b, iv - c, v - e
3. i - a, ii - b, iii - d, iv - c, v - e
4. i - e, ii - d, iii - b, iv - a, v - c

Q.

Which one out of the organs listed below, most actively functions in regulating our body temperature?

1. Heart

2. Stomach

3. Lungs

4. Skin

Q.

Can stress cause lymphoma?

Q. ___________ is a layer of skin that helps in maintaining the body temperature.

1. Epidermis
2. Dermis
3. Hyperdermis
4. Hypodermis

Q.

Why there are two nostrils, why not one?

Q.

Differentiate between epidermis and dermis.

Q. Layer of skin is _____________.

1. Dermis
2. Epidermis
3. Both A and B
4. None of these

Q.

Why does our hand shrink after keeping in water for long term?

Q.

The function of the Subcutis layer of the skin is to:

1. Sweat secretion

2. Regulation of body temperature

3. Synthesis of Vitamin D

4. All of the above

Q. Blood vessels and nerve endings are present below the layer of the skin.

Q. Differentiate the nature of skin in four classes of tetrapoda.

Q. Skin cells are permanent from the time of birth till death.

1. True
2. False

Q. Which of the following statements is/are correct among these?
Statement $1$ - Chondrocytes are the cells that form a dense regular type of tissue.
Statement $2$ - Osteocytes are the cells that form a hard, and specialised connective tissue.

1. Statement $1$ is correct but statement $2$ is incorrect.
2. Statement $1$ is incorrect but statement $2$ is correct.
3. Both statements are correct.
4. Both statements are incorrect.

Q.

Is there any part of our body in which blood is not circulated except cornea of eyes?