Define bone
Ridged, mineralized structures that perform multiple functions for the body
What are the five functions of bones?
How do bones support?
They form a framework for the body, contributing to the shape, alignment, and positioning of body parts
How do bones protect?
Boney “boxes” protect the delicate structures they enclose
How do bones allow movement?
When bones mix with joints, they act as levers that move as muscles contract
How do bones allow mineral storage?
Bones are reservoirs for calcium, phosphorous, and other minerals
How do bones allow for hematopoesis
Blood cell formation is carried out by myeloid tissue
What are the four types of bone
Define long bones
Bones that are longer than they are wide
Define short bones
Bones that are as wide as they are long; typically cube or box like
Define flat bones
Bones that are flat and often have a curved surface
Define irregular bones
Bones that are various shapes and sizes
Define sesamoid bones
Seed-shaped bones
What is an example of a long bone
Humerus
What is an example of a short bone
Phalange
What is an example of a flat bone
Scapula
What is an example of a irregular bone
Vertebra
What is an example of a sesamoid bone
Patella
What are the two types of bones in a bones structural composition
Define compact bone
Dense and solid bone matter found covering the outside of a bone. Accounts for 80% of bone mass in the body
Define cancellous bone (spongey bone)
Open space filled with needle-like structures found in the inside of a bone. Accounts for 20% of bone mass in the body