Apologia Human Anatomy and Physiology-Lesson 2

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Lesson 2

Yellow Bone Marrow

This is the kind of bone marrow in which lipids (fats) are stored.

Calcium

A mineral stored in your bones that helps keep your heart beating and your brain thinking. It also makes your bones strong.

Red Bone Marrow

This is the kind of bone marrow in which blood cells are made.

Osteoporosis

A disease that results in weak bones with lots of tiny holes in them.

Cartilage

A firm but resilient material in the body and on the ends of bones that absorbs shock well and keeps the bones from getting hurt when they rub against one another.

Osteoclasts

The bone cells that eat away at the spongy layer, causing your bones to get wider.

Rickets

A disease that causes weak and misformed bones. People can get this disease when they do not get enough vitamin D.

Fused

This is what occurs when two smaller bones are joined together to form one bone.

Skeletal System

The bony supportive structure within the human body.

Collagen

The tough fiber that makes up part of the bone.

Rib Cage

The bones that protect your heart and lungs.

Spongy bone

The layer of bone under the compact bone. It is a network of pores and tunnells interconnected in a pattern that makes the bone strong yet resilient.

Cranium

The bones of your skull that protect your brain.

Sutures

Joints that do not move.

Callus

A bulge that occurs in a broken bone while it is healing.

Malnutrition

When a person doesn't get enough of the right kinds of nutrients.

Vitamin D

Your body needs _____ to make strong bones. Your body makes this when it is exposed to the sun.

Osteoblasts

The cells that make new bones.

Lipids

Fats that are stored in your bones, as well as elsewhere in your body.

Periosteum

The outside layer of a bone: a thin, tough membrane.

Remodeling

What scientists call it when the body breaks down old bone and rebuilds new bone.

Skull

The group of bones that make up your head.

Synovial Fluid

Fluid that allows the joints to move more easily.

Femur

The longest bone in the body-the thigh bone.

Ligaments

The tissues that connect one bone to another bone.

Carpals

Wrist bones

Clavicle

Collarbone

Vertabra

Located along the spine in the back

Coccyx

Tailbone

Fibula

The outer and thinner of the two bones of the lower leg.

Fingers and toes

Phalanges

Humerus

Bone extending from the shoulder to the elbow, upper arm bone.

Mandible

Jawbone

Metatarsals

Foot bones

Metacarpals

Hand bones

Patella

Knee cap

Radius

Smaller of the two lower arm bones, thumb side

Scapula

Shoulder Blade

Sternum

Breastbone

Tarsals

Ankle bones

Tibia

The inner and thicker of the two bones of the lower leg.

Ulna

Larger of two lower arm bones;pinky side.

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