Ch 34 Body Systems Quiz

What is the main organ of the integumentary system?

• Heart

• Skin

• Liver

• Brain

Which layer of skin is the outermost layer?

• Dermis

• Subcutaneous layer

• Epidermis

• Muscle tissue

What is the function of melanin in the skin?

• To produce vitamin D

• To protect against UV damage to the DNA of your skin cells

• To keep the skin soft and pliable

• To help the skin return to its original shape after being stretched

Which layer of the skin has blood vessels, nerves, muscle tissues, and hair follicles?

• epidermis

• hypodermis / subcutaneous

• dermis

What happens when the blood vessels in the skin constrict?

• The body temperature increases

• Heat is conserved

• The body loses heat

• Sweat evaporates

What is one of the functions of the skin when exposed to UV light?

• It helps in the absorption of vitamin C into the bloodstream

• It produces vitamin D, aiding in the absorption of calcium

• It prevents the absorption of any vitamins

• It shields the body from physical damage

As people age, how does their skin typically change?

• Skin becomes more elastic and less oily

• Skin becomes drier and wrinkles may appear due to decreased gland production and loss of elasticity

• Skin becomes less susceptible to ultraviolet rays from tanning or from the sun

• Skin becomes thicker and more resistant to burns

How many bones does the adult human skeleton contain?

• 108

• 206

• 305

• 412

What does the axial skeleton include?

• The bones of the arms and legs

• The skull and the bones that support it

• The bones of the hands and feet

• The joints where two or more bones meet

What does the appendicular skeleton include?

• The skull and the bones that support it

• The bones of the arms and legs and structures associated with them

• The joints where two or more bones meet

• The bones of the hands and feet only