HAP #12 - Intro to Integumentary System

What is melanin?

• A layer of the skin

• A chemical that absorbs ultraviolet light from the sun

• A type of skin cell

• A protein that provides strength to the skin

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4

What are the two main layers of skin?

• Epidermis and Hypodermis

• Dermis and Subcutis

• Epidermis and Dermis

• Hypodermis and Subcutis

What is the epidermis?

• The innermost layer of skin, made of fat and connective tissue

• The outermost layer of skin, made of epithelial tissue

• The layer of skin that contains hair follicles and sweat glands

• The thickest layer of skin

What is the dermis and what is found there?

• The outermost layer of skin that contains pores and hair

• The layer of skin that is only as thick as one sheet of paper

• The thicker layer of skin that lies beneath the epidermis and contains hair follicle, oil gland, blood vessels, sweat gland, touch receptors

• The innermost layer of skin that stores fat and provides insulation

How does the skin protect the body?

• Forms a barrier that keeps harmful substances outside and important substances inside the body.

• Dissolves waste materials that come from the breakdown of chemicals during cellular processes.

• Helps the cells in your digestive system to absorb the calcium in your food.

What function of the skin is important for healthy bones because it helps the cells in your digestive system to absorb the calcium in your food?

• Protecting the body

• Maintaining temperature

• Eliminating wastes

• Gathering information

• Producing vitamin D

A main function of the integumentary system is ____________________.

• To protect the body from infection
• To receive pressure, pain, heat, and cold stimuli
• To maintain an internal body temperature
• all of these

What is the largest organ of the human body?

• Heart

• Liver

• Skin

• Lungs

Which layer of skin is primarily responsible for vitamin D synthesis?

• Epidermis

• Dermis

• Hypodermis

• Stratum corneum

What type of cells are primarily found in the epidermis?

• Merkel cells

• Melanocytes

• Dendritic cells

• Keratinocytes