Chapter 2 Flashcards
Forms the upright part of the body.
axial skeleton
Attaches to the axial skeleton and contains bones of the extremities.
appendicular skeleton
Total bones in the body?
206
Bone is made up of ____ organic material and ___ inorganic material
1/3, 2/3
Gives the bone its elasticity
organic material
Gives the bone hardness and strength
inorganic material
Makes up a hard, dense outer shell. Completely covers the bone, tends to be thick along the shaft and thin at the ends of long bones, thick in the plates of the flat bones of the skull
compact bone
Cancellous bone is also called…
trabeculae
Epiphysis
area at each end of a long bone
Epiphyseal plate
cartilaginous material in growing bone; longitudinal growth occurs here
Diaphysis
main shaft of the bone
Medullary canal
hollow; helps decrease weight of the bone. Contains marrow and provides passage for nutrient arteries.
Endosteum
lines the medullary canal, contains osteoclasts.
Osteoclasts
mainly responsible for bone resorption
Flared part at each end of the diaphysis
metaphysis
Contains nerve and blood vessels that are important in providing nourishment, promoting growth in diameter of immature bone, and repairing the bone.
periosteum
Attachment point for tendons and ligaments
periosteum
Two types of epiphyses found in children whose bones are still growing:
pressure epiphysis, traction epiphysis
Located at the end of long bones. Receives pressure from opposing bone making up that joint. This is where the growth of long bones occurs.
pressure epiphysis
Located where tendons attach to bones and are subjected to a pulling, or traction, force. Example: greater and lesser trochanters of the femur and tibial tuberosity
traction epiphysis
Largest bones in the body
long bones
Make up most of the appendicular skeleton
long bones