Structure and Function of Skin, Muscle, Blood, Nerves

What is the hardest substance in the human body?

• tooth enamel

• skin

• cartilage

• bone marrow

What is the largest organ of the human body?

• heart

• lungs

• skin

• brain

What is the outermost layer of the human body called?

• epidermis

• skin

• muscles

• bones

Which part of the body is responsible for detecting and responding to stimuli?

• respiratory system

• nervous system

• digestive system

• endocrine system

One function of the skeletal system is _______ especially in regards to the vital organs, such as the brain, heart, and lungs.

• Protection
• Storage
• Synthesis
• Movement

_________ is a function of the skeletal system that is completed by joints, ligaments, and tendons.

• Protection
• Storage
• Synthesis
• Movement

Which is not a function of the skeletal system?

• shape and support

• movement

• protection

• gas exchange

What is a joint?

• The place where 2 or more bones meet.

• A thin membrane that covers the surface of bone.

• A band of tissue that hold bones together.

• Connective tissue

What is the function of marrow?

• To make protein

• To make red blood cells and store fat.

• reduce friction

• to hold bones together

A tough band of tissue that holds bones together at the joint are called a __________________________.

• tendon

• cartilage

• periosteum

• ligament