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29 terms

Notes #1 and #2- Body Organization and Skeletal System Part ONE

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Femur
Largest bone in the body
Inner Ear Bones
Smallest bones in the body
Elbow (humerus/ulna)
The ___ is a hinge joint.
Shoulder (scapula/humerus)
The ___ is a ball and socket joint.
Skull to the vertebrae
The ____ is a pivot joint.
Immovable
A joint that has fused together.
Hinge
Non-twisting, powerful joint that can move in one direction.
Ball and socket
Twisting joint that can move in many directions.
Gliding
Partially movable joint where bones slide over one another.
Pivot
Joint where one bone rotates on a ring of another bone.
Joint
Place where two or more bones meet.
206
There are ___ bones in an adult.
Periosteum
The ___ is a tough membrane involved in bone growth and repair.
Osteoblasts
____ help form new bone by depositing Ca and P.
Osteoclasts
___ break down bone tissue.
Elastic
Ligaments are tough strands of ____ tissue that connect bones at movable joint
Compact bone
____ contains the live bone cells, blood vessels, and deposits of Ca and P.
Marrow
____ is the soft, fatty material found at the center of many long bones
Cushion
Cartilage can act a ____ between two bones.
100
There are about ____ trillion cells in the average adult.
18
Bones make up about ___% of your body weight.
Second
Two to three million red blood cells are made in the marrow every ______!
Exoskeleton
An ____ is made of chitin and found on the outside of insects.
Endoskeleton
An ___ is made of bone and found inside many animals.
Bone
Cartilage
Ligament
Muscle
Tendon