Skin & Body Membranes Practice Quiz

What organs make up the integumentary system?

• Skin, hair, nails

• Small and large intestine

• Cutaneous membrane, Mucous membrane, Serous membrane

• Skin, ear, nails

What are the functions of the skin?

• Forms external body coverage & boundary = excretion of nitrogenous wastes & salts in sweat

• Protects deeper tissues from injury & is a blood reservoir with up to 5% of the body's blood volume

• Syntheses of vitamin D precursor (Metabolic)

• Thermoregulation (sweating)

• Houses sensory receptors (Cutaneous sensations)

What makes up the CHEMICAL barrier provided by the integumentary system?

• Acid mantle = low pH secretions that stop bacterial activity

• Keratin + glycolipids = block water

• Dendritic cells + macrophages

What makes up the PHYSICAL barrier provided by the integumentary system?

• Acid mantle = low pH secretions that stop bacterial activity

• Keratin + glycolipids = block water

• Dendritic cells + macrophages

What makes up the BIOLOGICAL barrier provided by the integumentary system?

• Acid mantle = low pH secretions that stop bacterial activity

• Keratin + glycolipids = block water

• Dendritic cells + macrophages

Tags

NGSS.MS-LS1-3

How long does it take to replace the top layer of epidermis & get rid of your tan?

• 4-6 weeks / 1 month / 25-45 days

• 1 year

• 1 decade

• 15 days

This body membrane covers the outside of the body, is open to air, and is a DRY membrane

• Cutaneous

• Mucous (Mucosae)

• Serous (Serosae)

This body membrane lines the digestive and respiratory tract, is in oral and nasal cavities, is in open body cavities, and is moist

• Cutaneous

• Mucous (Mucosae)

• Serous (Serosae)

This body membrane is moist, found in closed body cavities, where its parietal layer lines the WALLS of cavities, its visceral layer lines the OUTER PART OF ORGANS, and it is in the pericardial, abdominopelvic, and thoracic cavities

• Cutaneous

• Mucous (Mucosae)

• Serous (Serosae)

What is structure #`?

• Hair follicle

• Hair receptor

• Hair shaft

• Hair bulb