Function & Structure
Bones are a source of what mineral?
Calcium (and phosphate)
These cells form bone
Osteoblasts
When you reach adulthood your bones stop changing
True or False
False
The longest bone in the body
Femur
How do we measure bone health?
bone mineral density
Name 2 of 3 functions of bones the skeletal system
Protection
Framework for the body
Movement (muscle attachment)
These cells dissolve bone
Osteoclasts
Healthy bones should be flexible
True or False
True
There are how many bones in the adult human body?
206
Being old and falling increases the risk of this
Fracture
What is made in the bone marrow?
Source of blood cells
These cells help maintain bone
Osteocytes
The process of making bone is called?
Formation
(Also part of the skeletal system) what is stronger than bone?
Teeth (enamel)
Disease of brittle bones
Osteoporosis
What are the two types of bone in the body?
Cortical bone (aka compact)
Trabecular bone (aka spongy)
Name a hormone that plays a role in controlling bone cell activity.
Testosterone
Estrogen
The process of breaking down bone is called?
Resorption
The smallest bone in the human body?
Stapes
Name 2 nutrients that play a big role in bone health
Calcium
Vitamin D
What 2 materials make up bone?
Collagen
Calcium
When a bone cell dies the process is called?
apoptosis
The continual process of bone changing is called?
Remodeling
The body part with the most bones in the body
Hand
Weakening of the bone is called
Osteopenia