A&P Chapter 7 Flashcards
How many types of bones are in the body
206
A thin layer covering each epiphysis is called
Articulate cartilage
What lines the medullary cavity of long bones
The endosteum
What term is used to describe the process of blood cell formation
Hematopolesis
Blood cell formation is a vital process carried on in
Red bone marrow
What is a strong fibrous membrane covering a long but except at joint surfaces
Periosteum
Osteoporosis occurs mostly in
Elderly white females
Bone serve as a safety deposit box for ….?
Calcium
What is a vital substance required for normal nerve and muscle function
Calcium
As muscles contract and shorten they pull on bones and thereby cause them to?
Move
What does calcitonin do?
Increases mineralization of the bond - reducing blood calcium levels
Parathyroid hormone does what
Counter balances the effects of the ct (calcitonin) by decreasing calcium in the bone
What are long bones
Humerus or arm bone
Short bones
Carpals or wrist bones
Flat bones
Frontal or skull bone
Irregular bones
Vertebrae
Diaphysis in long bone
Hollow tube made of hard compact bone. Rigid and strong structure. Light in weight to permit easy movement
Medullary cavity
The hollow area inside of the diaphysis of a bone contains soft yellow bone marrow
What is yellow bone marrow
An inactive fatty form of marrow found in the adult skeleton
Why is red bone marrow important?
blood cell forming tissue
what is the hollow shaft of the long bond
epiphyses
Trabeculae is what?
beams that form spongy bone
the four openings sinuses is called
paranasal sinuses
the arch that lies on the inside part of the foot is
medial longitude arch
the arch extends across the ball of the foot
lateral arch
the arch that lays on the outer edge of the foot
transverse arch