Integumentary system

Helps the skin surface to have rigid and waterproof properties:

• Keratin

• Filaments

• Bile

• Vitamin D

They are the most common and numerous cells in the epidermis:

• Mason cells

• Keratinocytes

• Leukocytes

• Thyroid gland

It is a temperature-regulating system responsible for tactile sensitivity.

• Epidermis

• Myosin

• Skin

• Melanin

They produce an oily substance that releases secretions that trap and eliminate harmful bacteria and lubricate and soften our skin and hair.

• Sweat glands

• Gastrin

• Sebaceous glands

• Merkel cells

Langerhans cells function is to:

• Repair the epidermial layer after injuries or cuts.

• Help with the growth of other cells.

• Regulate the temperature of the body.

• Consume unhealthy bacteria and alert the immune system.

Skin is composed of three parts:

• True

• False

Is a dark brown pigment, gives the skin its colour.

• Keratin

• Merkel cells

• Melanin

• Melanocytes

In which part of the epidermis are located the Merkel cells?

• In the upper layer

• In the deepest layer.

• In the middle part.

Is the most severe type of skin cancer:

• Basal cell carcinoma

• Melanoma

• Squamous cell carcinoma

Epidermis is mainly a dense tissue made up of collagen and fibres.

• True

• False