Ch. 4: 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

Of your DERMIS, what is the name of the layer that makes up the TOP 20% and has areolar connective tissue?

• Papillary

• Reticular

Of your DERMIS, what is the name of the layer that makes up the BOTTOM 80% and has dense irregular tissue?

• Papillary

• Reticular

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)