-
Long Bones
have knobby ends, called epiphyses, and a long central shaft, the diaphysis
-
Flat Bones
mostly associate with the skull and are composed of sheets of bone
-
Compact Bone
Very solid, heavy, durable, made of osteons
-
Cancellous Bone
porous, light, supportive, made of trabaculea
-
Ossification
Process of making bones
-
Endochondral Ossification
starts w/cartilage pattern>osteoblasts make bone matrix>ends in mid teens>osteoplasts come in later and hollow out center of bone>makes long bones w/osteons
-
Intramembranous Ossification
forms bone in Irregular Dense Collagenous CT>ends at age 2>forms mostly trabaculea
-
Fonteanel
area between ossification
-
-
Synarthrosis
Immovable joint, fibrous - Skull Suture
-
Amphiarthrosis
partially movable joint, cartilagenous - intervertebal joints
-
Diarthrosis
Fully movable joint, synovial - shoulder
-
Type of Movement is Determined by
- shape of joint surface
- placemant of ligaments
-
Arthritis
Deterioration of the joint
-
Osteoarthritis
wear and tear
-
Rheumatoid Arthritis
autoimmune disease
-
Osteoporosis
excessive demineralization of bone
-
Open Fracture
Broken bone w/open skin wound
-
Closed Fracture
no skin would w/broken bone
-
Greenstick Fracture
Only occurs in kids>bone bends
-
Healing of Fracture
- bleeding-hematoma forms blood clot
- bone callus forms
- osteoblasts calcify the cells
- osteoclasts remodel the bone
-
Surgical Fixes for Fractures
- wire
- rod through bone
- bone plate
-
Sarcolemma
Plasma membrane of muscle cell
-
Sarcoplasm
cytoplasm>in plasma membrane
-
Sarcoplasmic Reticulum
Endoplasmic Reticulum>agranular
-
T-Tubules
extensions of sarcolemma that enter interior of muscle cells
-
Myofilaments
parts of cytoskeleton that helps w/contraction>creates striations
-
Medullary Cavity
Hollow cavity in diaphysis that houses bone marrow
|
|