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Sci 7: Human Biology

Chapter 2: Bones, Muscles, and Skin

Name the 5 functions of the skeleton. 1) Provides shape and support. 2) Enables you to move. 3) Protects internal organs. 4) Produces blood cells. 5) Stores certain materials until your body needs them
What 2 lifestyle choices help keep bones healthy and strong? A balanced diet and exercise.
A place in the body where two bones come together. Joint
The condition in which the body's bones become weak and break easily. Osteoporosis
Is one of the 26 small bones that make up your backbone. Vertebra
Connective tissue that is more flexible than bone. Cartilage
This is the strong connective tissue that holds the bones together in a movable joint. Ligament
What type of injuries can X-rays be used to diagnose? Broken bones
What types of injuries can MRI be used to diagnose? Injuries to bones AND soft tissue
A break in the bone. Fracture
Ligaments stretched too far and tear in places. Sprain
What types of actions use smooth muscles? Provide examples. Involuntary actions (breathing and digestion)
What type of muscle is smooth muscle? Involuntary muscle
What types of actions use skeletal muscles? Provide examples. Voluntary activities (running, walking, swimming)
What type of muscle is skeletal muscle? Voluntary muscle
List the functions of the skin. 1) Covers the body. 2) Prevents the loss of water. 3) Protects the body from injury and infection. 4) Helps regulate body temperature. 5) Eliminates wastes. 6) Gathers info about the environment. 7) Produces vitamin D.
What structures does the dermis contain? Nerves, blood vessels, sweat glands, hair, and oil glands.
How can you help to keep your skin healthy? Eat a balanced diet. Drink enough water. Limit exposure to the sun. Keep skin clean and dry.
Created by: SJSScience