This bone protects your brain and forms the structure of your head.
What is the skull?
The hard outer layer of bone is called this.
What is compact bone?
The process by which cartilage turns into bone.
What is ossification?
These joints are found in your knees and elbows and allow back-and-forth movement.
What are hinge joints?
When a bone breaks, it is called this.
What is a fracture?
These bones make up your spine and protect your spinal cord.
What are vertebrae?
Inside some bones, this substance produces blood cells.
What is bone marrow?
These cells build new bone.
What are osteoblasts?
These joints, like the one in your shoulder, allow for the greatest range of motion.
What are ball-and-socket joints?
This soft tissue forms first after a bone breaks.
What is a blood clot (or hematoma)?
This bone is found in your upper arm and connects the shoulder to the elbow.
What is the humerus?
This mineral gives bones their hardness and strength.
What is calcium?
These cells break down old bone tissue.
What are osteoclasts?
The skull contains these non-movable joints.
What are fixed joints?
This disease weakens bones due to loss of bone density, especially in older adults.
What is osteoporosis?
These two bones form the lower leg. One is thicker and weight-bearing.
What are the tibia and fibula?
This structure makes up the underlying rigid framework of bones,
What is the bone matrix?
Bone formation starts during this stage of life.
What is fetal development (before birth)?
The axial skeleton's purpose is this.
What is protection and support?
This part of the bone healing process forms a temporary bridge made of cartilage and tissue before new bone forms.
What is a soft callus?
These bones form the middle part of your ribcage and help protect your lungs and heart.
What are the ribs?
This part of the bone helps reduce weight and absorb impact.
What is the spongy bone?
These are the 4 factors that affect bone growth.
What are nutrition, genetics, hormones, and lifestyle factors?
This part of the skeleton includes limbs and helps the body move.
What is the appendicular skeleton?
A bone disorder where bones soften due to lack of vitamin D.
What is rickets?