Question

The skin is composed of three layers: epidermis, dermis, and hypodermis. How do the layers of the skin protect the body from bacterial infections?

a. The dermis acts as a tough physical barrier, and the hypodermis produces solutions that make the skin slightly basic.

b. The dermis absorbs microparticles from the skin, and the hypodermis contracts during cold environmental temperatures.

c. The dermis stores energy as fat for future consumption, and the hypodermis produces external bumps on the skin.

d. The dermis releases oils that cover the skin, and the hypodermis releases heat from capillaries that expand when warm.

Answer 1

d. The dermis releases oils that cover the skin, and the hypodermis releases heat from capillaries.

Step-by-step explanation:

The skin, the largest organ of the human body, has an essential protective function against pathogens, such as bacteria. This organ is composed of three layers of tissue: the epidermis, dermis and hypodermis.

The dermal layer or dermis has a variety of characteristics that help achieve this purpose, for example:

• The presence of oil or sebaceous glands: These glands produce sebum to protect the skin from pathogens and pollutants.

• The presence of sweat glands.

• The presence of hair follicles.
• The presence of blood vessels.

The hypodermis is characterized by being the deepest layer of the skin but it also protects us from infections.

• It is composed of fatty tissue, which provides an insulating layer to protect us from extreme weather.
• This fat also protect us from severe injuries due to its thickness.
• The blood vessels located in the hypodermis cause the capillaries to expand and release more heat.