Systems of the Body - Skeletal System Flashcards
What are the 5 functions of the skeletal system?
Provides shape/structure, enables movement, protects organs, produces blood cells, stores minerals
What attaches bone to bone?
ligaments
What attaches muscle to bone?
tendons
How do muscles and bone work together?
Muscles pull on bone to create movement; muscles=mobility, skeleton=structure
What are the two main divisions of the skeletal system?
axial and appendicular
How many bones total are there in an adult human?
206
Do child and teenagers have more or less bones than an adult?
More; bones finish growing and fuse together into single bones once you’re done growing
What are three main parts of skeletal structure?
bones, cartilage, and ligaments
What type of bone is the femur (thigh bone)?
long
What type of bone is a single vertebrae (single spine joint)?
irregular
What are the missing types of bone: long, irregular, sesamoid, _____________, and _____________.
short and flat
What are the missing parts of a bone’s structure: compact, periosteum, bone marrow, _____________, and _______________.
spongy and cartilage
______________ produces red blood cells
Red bone marrow
What type of bone cell breaks down bone before reconstruction?
osteoclasts (c for “chaos”)
What type of bone cell maintains existing bone?
osteocytes
