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Apologia Anatomy & Physiology Lesson 2: Skeletal System

Apologia Exploring Creation with Human Anatomy & Physiology
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Yellow Bone Marrow
This is the kind of bone marrow that consists primarily of cells which store fat.
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.
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.
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.
Osteoblasts
The cells that make new bones.
Periosteum
The outside layer of a bone: a thin, tough membrane.
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.
Vertebrae
Bones of the spinal column
Phalanges
Bones of the fingers and toes
Sesamoid Bones
Small, round bones that are often found in the hands and feet; the largest is the patella.
Compact Bone
Thick, hard layer of bone under the periosteum.
Spinal Column
The row of bones called vertebrae in the middle of the back that contains and protects the spinal cord.
Name the different things that bones do for your body.
They give you form and hold you up, they protect organs, they make blood cells, they store minerals and fats, and they help you move.
What is the periosteum?
The outer layer on a bone that has nerves and blood vessels.
What mineral makes compact bone strong and hard?
Calcium
What is the bone tissue that forms tunnels and pores called?
Spongy bone
What are the two kinds of bone marrow?
Red bone marrow and yellow bone marrow
What are osteoblasts?
The cells that make new bone
Where are the smallest bones in your body found?
In the ear
Which is the longest bone in your body?
The femur
What do ligaments do?
They hold the bones together
What is the rounded part of your skull called?
The cranium
Can you name at least five other bones in your body by their scientific names?
...
Can you name at least one kind of joint?
Hinge joint
Ball and socket joint
Saddle joint
Sliding joint
Pivot joint
Ellipsoidal joint