CHAPTER 17. STRUCTURE AND MOVEMENT. FUNCTIONS OF THE SKELETAL SYSTEM. Shape and support. Protection Internal organs Attachment Production Red blood cells Storage a. Calcium and phosphorus. BONE STRUCTURE. PERIOSTEUM 1. Membrane that covers the bone’s surface.
STRUCTURE AND MOVEMENT
a. Calcium and phosphorus
1. Membrane that covers the bone’s surface.
a. Blood vessels carry nutrients into the bone
b. Contains cells involved in the growth and repair of bone.
1. Hard, strong layer under the periosteum.
a. Gives the bone strength
b. Has a flexible framework.
1. Found towards the end of long bones.
a. Many small open spaces that make bone lightweight.
b. Filled with marrow
- Red Blood Cells
1. Rubbery layer of tissue found at the ends of bones where they form joints.
a. Cartilage acts as a shock absorber.
b. Reduces friction between bones when they rub.
1. Bone tissue is always being formed and reformed.
a. Build up of bone (Ca & P), which make bone hard.
a. Break down bone tissue.
1. Any place where two or more bones come together.
a. Tough band of tissue that holds bones in place
A muscle is an organ that can relax and contract, and provides the force to move your body parts.
Example: large intestine
Layers Of The Skin
1. Epidermis – outer, thinnest layer.
a. Made of dead cells
b. New cells are produced at the base of the epidermis.
c. Melanin is produced
i. Skin pigment
a. Thicker than the epidermis.
b. Contains blood vessels, nerves, muscles, oil glands, and sweat glands.
3. Fatty layer – insulates the body.
a. Nerve cells detect and relay information to the brain.
heat that has been produced by muscle contractions.
5. Waste removal