4.2 Integumentary System

What is the primary function of the integumentary system?

• Protecting the body, Insulating and cushioning deeper body organs

• Protecting the body from diseases

• Regulating skin loss from the body surface

• Producing proteins important to the immune system

Which layer of the skin is responsible for waterproofing and preventing water loss?

• Stratum basale

• Stratum spinosum

• Stratum granulosum

• Stratum corneum

What is the role of melanocytes in the skin?

• Producing keratin

• Activating immune system cells

• Producing melanin pigment

• Serving as touch receptors

Which layer of the epidermis is responsible for constant cell division?

• Stratum basale

• Stratum spinosum

• Stratum granulosum

• Stratum corneum

What is the function of the acid mantle in the skin?

• Preventing water loss

• Protecting against bacterial invasion

• Regulating heat loss

• Producing Vitamin D

What is the main function of the subcutaneous tissue?

• Anchoring the skin to underlying organs

• Producing sweat and oil glands

• shock absorber and insulates from extreme temps

• Protecting against mechanical damage

What is the purpose of the sweat glands in the integumentary system?

• Regulating heat loss

• Producing melanin

• Activating immune system cells

• Serving as touch receptors

What is the primary function of the stratum corneum?

• Producing keratin

• Regulating heat loss

• Preventing water loss

• Protecting against bacterial invasion

What is the role of epidermal dendritic cells in the skin?

• Producing keratin

• Activating immune system cells

• Producing melanin pigment

• Serving as touch receptors

Which layer of the epidermis is responsible for the formation of freckles and moles?

• Stratum basale

• Stratum spinosum

• Stratum granulosum

• Stratum corneum