Functions of the Skin

What are the functions of the skin according to the learning material provided?

• Protects, Touch, Regulates body temperature, Helps get rid of wastes

• Absorbs water, Provides color, Stores fat, Produces vitamin D

• Covers internal organs, Allows movement, Produces blood cells, Filters blood

• Provides insulation, Regulates sleep, Controls appetite, Enhances vision

What is melanin?

• A layer of the skin

• A chemical that absorbs ultraviolet light from the sun

• A type of skin cell

• A protein that provides strength to the skin

What are the two main layers of skin?

• Epidermis and Hypodermis

• Dermis and Subcutis

• Epidermis and Dermis

• Hypodermis and Subcutis

What is the epidermis?

• The innermost layer of skin, made of fat and connective tissue

• The outermost layer of skin, made of epithelial tissue

• The layer of skin that contains hair follicles and sweat glands

• The thickest layer of skin

What is the dermis and what is found there?

• The outermost layer of skin that contains pores and hair

• The layer of skin that is only as thick as one sheet of paper

• The thicker layer of skin that lies beneath the epidermis and contains hair follicle, oil gland, blood vessels, sweat gland, touch receptors

• The innermost layer of skin that stores fat and provides insulation

Where does hair form?

• At the top of the scalp

• At the bottom of a tiny sac called a hair follicle

• On the surface of the skin

• Inside the nail root

From which part do nails grow?

• From the hair follicle

• From the skin surface

• From the nail root at the base of a nail

• From the epidermis

What forms over a cut to stop bleeding and keep bacteria out?

• A layer of skin cells

• A blood clot

• A bruise

• A blister

How are damaged cells in the skin replaced?

• Through blood clotting

• Through scab formation

• Through cell division, mitosis

• They are not replaced

Why does it not hurt to cut through strands of hair or nails?

• Because they are made of bone

• Because they contain nerve endings

• Because they are made of living cells

• Because they are made of dead cells