Vertebrae
A total of 26 small bones that make up your backbone.
Joint
A place where two bones come together
Ligament
Strong connective tissue that hold together the bones in movable joints.
Marrow
Soft connective tissue which the bone has two types of.
Cartilage
A strong connective tissue that is more flexible than bone. As you grow, most of this is replaced with bone.
Involuntary muscle
Muscles that are NOT under your conscious control.
Voluntary muscle
Muscles under your conscious control.
Tendon
A strong connective tissue that attaches the muscle to a bone.
Epidermis
The outer layer of your skin, which protects your skin/body.
Melanin
A pigment that colors the skin which is produced by some cells deep in the epidermis.
Dermis
The inner layer of your skin, and is located above a layer of fat.
Pore
Openings that allow sweat to reach the surface.
Follicles
Strands of hair that grow within the dermis.
Cancer
A disease in which some cells divide uncontrollably.
Osteoporosis
A condition in which bones become weak and break easily. Mineral loss can lead to this, usually as you grow older.
Name the three types of muscle tissues describing them and where they are.
Skeletal muscles provide the force that moves your bones, and they are voluntary. They can be found in your leg, face, etc. It is striated and reacts quickly but also tires quickly.
Smooth muscles are involuntary muscles that work to control certain movements inside your body. It can be found in your internal body organs such as blood vessels and the stomach. Reacts and tires slowly.
Cardiac muscle is found only in your heart and is involuntary. They are striated but do not tire and contract repeatedly.
Name 5 functions of the skin
Regulates body temperature
Eliminates waste
Gathers information about the environment
Produces vitamin D
Protects the body
What does the dermis layer consist of?
Nerves, blood vessels, sweat glands, and oil glands.
Name 4 types of joints
Hinge joint - allows forward or backward motion. Ex: Elbow & knees
Ball-and-Socket joint - Allows the greatest range of motion. Ex: Hip & shoulder
Pivot joint - Allows one bone to rotate over another bone. Ex: Neck
Gliding joint - Allows one bone to slide over another. Ex: Ankles & wrists
Difference between Involuntary and Voluntary muscles + Examples
Involuntary muscles are muscles that are NOT under your conscious control. Voluntary muscles are ones under your conscious control.
Involuntary ex: Your lungs, your heart, and your stomach.
Voluntary ex: Your legs, arms, and fingers.
How can you have healthy skin?
Eat a healthy diet (Provides energy and raw materials needed for the growth and replacement of skin cells),
keep your skin clean, (Mild soap gets rid of dirt and harmful bacteria, and controls oiliness.
and limit your time in the sun. (Too much sunlight will cause cancer.)
How do you get healthy bones?
A balanced diet (Foods that contain enough calcium and phosphorus to keep your bones strong while they’re growing.)
Regular exercise (Helps build and maintain strong bones.)
Wear proper equipment to prevent injuries!