Protection Unit Review

Which of the following is NOT a main part of the integumentary system?

• Skin

• Hair

• Bones

• Nails

What is the role of hair in the integumentary system?

• Blood circulation

• Dead keratinized cells

• Oxygen exchange

• Nutrient absorption

What is the primary function of Merkel cells in the skin?

• Sensation

• Protection

• Fat storage

• Vitamin D production

What is the main function of melanocytes in the skin?

• Produce keratin

• Produce melanin

• Store fat

• Regulate temperature

Which layer of the skin is primarily involved in insulation?

• Epidermis

• Dermis

• Hypodermis

• Stratum basale

Which of the following is NOT a function of the integumentary system?

• Blood storage

• Vitamin D production

• Respiration

• Sensation

What is the primary function of sebaceous glands?

• Produce sweat

• Soften skin and hair

• Absorb nutrients

• Filter lymph

Which of the following is NOT a function of the lymphatic system?

• Returns leaked fluid to the blood

• Filters lymph for pathogens

• Produces digestive enzymes

• Absorbs fat from intestines

What is the role of macrophages in lymph nodes?

• Produce hormones

• Absorb nutrients

• Filter lymph

• Produce red blood cells

What is the main goal of the immune system?

• To produce energy

• To protect against pathogens and abnormal cells

• To digest food

• To regulate body temperature