Concept 7.1 Lecture Video and Quiz

What is the primary function of the integumentary system?

• Digestion

• Protection

• Respiration

• Circulation

Which layer of the skin is composed of epithelial tissue?

• Hypodermis

• Dermis

• Subcutaneous layer

• Epidermis

What type of cells produce keratin?

• Dendritic cells

• Merkel cells

• Keratinocytes

• Melanocytes

Which layer of the epidermis is known as the 'horny layer'?

• Stratum basale

• Stratum spinosum

• Stratum corneum

• Stratum granulosum

What is the main function of the dermal papillae?

• Store fat

• Produce sweat

• Provide nutrients to the epidermis

• Produce melanin

Which layer is not technically part of the skin but is important for insulation and shock absorption?

• Stratum corneum

• Hypodermis

• Dermis

• Epidermis

What is the deepest layer of a hair strand called?

• Hair root

• Cortex

• Medulla

• Cuticle

What muscle is responsible for causing goosebumps?

• Deltoid

• Triceps

• Biceps

• Erector pili

What part of the nail is embedded in the skin?

• Nail body

• Nail plate

• Nail root

• Free edge

Which type of sweat gland is most abundant and helps with temperature regulation?

• Ceruminous

• Sebaceous

• Eccrine

• Apocrine