skeletal system function
what does the red bone marrow produce?
bone cells, rbcs, wbc and platelets
what is the periosteum?
rich with blood vessels and nerves; surrounds outer surface of long bones
what forms the inorganic matrix?
calcium, phosphate, magnesium, hydroxyapatite crystal
which bones form by way of intramembranous ossification?
skull/clavicle
how many bones are there?
206
What is yellow bone marrow?
stores triglycerides
What is the diaphysis?
shaft of a long bone;
what forms the organic matrix?
protein fibers, gag's , proteoglycan, glycoprotein
which bones form by way of endochondral ossification?
bones below the head except the clavicle
how many vertebra are there and how many of each type are there?
33
7c
12t
5l
5s3-5co
What do bones store?
calcium, phosphates, etc.
What is the epiphysis?
epiphysis is covered with a thin layer of hyaline cartilage. It is the end of long bones.
what are the three bone cells?
osteoclasts
osteoblasts
osteocytes
adults will go through which bone growth?
appositional
what are the bones of the upper limb? (proximal/distal)
humerus
radius/ulna
carpals/metacarpals
phalanges
What is a function of bone?
acid base homeostasis, protect organs, site of muscle attachment, movement, fat storage, and blood cell formation, etc.
What is diploe?
Internal structure is composed of two outer layers of thin compact bone with a middle layer of spongy bone, called diploë,
can you describe osteocytes?
mature osteoblasts that surround themselves with bone matrix
longitudinal
what are the bones of the lower limb? (proximal/distal)
femur
tibia/fibula
tarsals/metatarsals
phalanges
What are the shapes of bone? How many bones are in the adult skeleton?
long, flat, sesamoid, short, irregular. 206.
can you describe compact and spongy bone?
Compact bone – one of two bone textures; hard, dense outer region that allows bone to resist linear compression and __________ forces among other stresses
o Spongy bone (cancellous bone) – second bone texture found inside cortical bone; honeycomb-like framework of bony struts; allows long bones to resist forces from many directions;
which bone cell is responsible for bone deposition?
which bone cell is responsible for bone resorption?
osteoblasts
osteoclasts
what is the function of tendons?
what is the function of ligaments?
attach muscle to bone
attach bone to bone
What are the synovial movements?
elevation/depression
protraction/retraction
supination/pronation
opposition/reposition
flexion/extention
inversion/eversion
abduction/adduction
dorsiflexion/plantarflexion
circumduction/external rotation/internal rotation