Skin Accessory Structures LT27-34

What is the primary focus of the integumentary system?

• Bones

• Muscles

• Skin

• Nervous System

What is the function of the sebaceous gland?

• Produces sweat

• Produces oil

• Detects pressure

• Provides insulation

Which part of the hair is mostly above the skin surface?

• Hair root

• Hair shaft

• Hair follicle

• Hair bulb

What is the function of the nerve endings surrounding the hair follicle?

• To produce new hair cells

• To detect movement of the hair

• To extend into the dermis

• To provide nutrients to the hair

What is the role of the bulb of the hair follicle?

• Surrounds the root

• Extends into the dermis

• Produces new hair cells by mitosis

• Detects movement of the hair

Where does cell division occur in the hair structure?

• Hair shaft

• Matrix

• Hair bulge

• Apocrine sweat gland

What is the function of the arrector pili muscle?

• It connects the dermis to the epidermis.

• It straightens the hair and creates a "goose bump" when it contracts.

• It produces hair color.

• It removes dead skin cells.

Which layer of the skin contains the hair follicle?

• Epidermis

• Dermis

• Hypodermis

• Basement membrane

What is the primary cause of hair color?

• Keratin

• Melanin

• Hemoglobin

• Collagen

Tags

NGSS.MS-LS4-4

What is one of the main reasons hair turns gray as people age?

• Increase in melanin production

• Decrease in melanin production

• Increase in blood flow to hair follicles

• Decrease in blood flow to hair follicles.