Skeletal system Flashcards
The skeletal system comprises of…
bones and supporting tissue
What are the 3 layers of bone from outer to inner and characteristics?
- compact - hard casing
- spongy - porous & flexible
- bone marrow
What are the 4 purposes/functions of bones?
- framework of the body
- protect the organs
- development and storage of blood cells
- storage for minerals
How many bones are in babies vs. adults?
babies - 300
adults - 206 after fusion and development
What are the 5 types of bones?
- long
- short
- flat
- sesamoid
- irregular
Which type of bone is characterized as longer than it is wide?
Long bone
What type of bone is wider than it is long and provides stability but little movement?
Short bone
What type of bone is used for protection and muscular attatchment?
Flat bone
What type of bone is found inside tendons or muscles?
Sesamoid bone
What type of bone is characterized by unique shapes?
Irregular bone
What type of tissue connects muscle to bone and aids in movement?
Tendons
What type of tissue connects bone to bone and keeps structures stable?
Ligaments
What type of connective tissue is hard but flexible and found between bones?
Cartilage