Question

Observe the figure given below and answer the following questions:

(i) Label the parts marked 1- 7.

(ii) State one function of each of the following: part 2, part 3 and part 4.

(iii) In which of the part shown above is the brown pigment present?

Accepted Answer

(i)

(ii) Part 2 Dermis: The dermis is the middle layer of the skin, located between the epidermis and the subcutaneous tissue. It contains various structures like blood vessels, hair follicles, sweat glands, and nerve endings. It provides structural support to the skin, helping it maintain its shape and integrity.

Part 3 Sweat gland: Sweat glands, also known as sudoriferous glands, are an essential part of the skin's integumentary system. Sweat glands play a pivotal role in maintaining the body's temperature within a narrow range. When the body temperature rises due to physical activity, high ambient temperature, or emotional stress, the sweat glands secrete sweat onto the skin's surface. As sweat evaporates, it cools the body, helping to dissipate excess heat and prevent overheating.

Part 4 Hair follicle: Hair follicles are tiny, tube-like structures in the skin that play several important roles in the body. Their primary function is related to the growth and maintenance of hair.

(iii) The dark-brown pigment is also called melanin and it determines skin colour. It is present in the Malpighian layer that is present in the epidermis. Melanin acts as a screen against ultraviolet light.

Observe the figure given below and answer the following questions:

(i) Label the parts marked 1- 7.

(ii) State one function of each of the following: part 2, part 3 and part 4.

(iii) In which of the part shown above is the brown pigment present?

Important Questions on The Skin

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