Bone/Skeletal System
What is the second step in bone remodeling cycle?
Active osteoclasts
Where is spongy bone located?
Along the epiphyses of long bones and sites of red blood cell formation
What are the effects of aging on bones?
Loss of calcium, salt, collagen Bone weakening Reduction in collagen
What is the third step in bone remodeling cycle?
Mononuclear cells
What are the two types of bone?
Compact Spongy
What are mature bone cells?
Osteocytes
What is the sixth step in bone remodeling cycle?
Osteocytes
What is the production of new bone cells referred to as?
Osteogenesis
What hormone is release early in bone remodeling cycle?
PTH
What is the outside membrane of bone?
Periosteum
What are the two types of membranes of bone?
Periosteum Endosteum
What is the fourth step in bone remodeling cycle?
Pre-osteoblasts
What is the first step in bone remodeling cycle?
Pre-osteoclasts
What are the two types of marrow?
Red Yellow
What does red bone marrow produce?
Red blood cells Platelets White blood cells
What are the functions of bone?
Framework for body Protect delicate structure Creates levers to produce force Stores calcium Produces blood cells
How do osteoclasts dissolve bone?
Secretes enzymes and acids
Where is compact bone located?
Shaft of long bones
What does yellow bone marrow produce?
Stem cells Cartilage Fat Bone
What are the effects of aging on joints?
Thinning cartilage Decreased flexibility
Bones will respond due to the forces placed on it is know as?
Wolf's law
What hormone is release later in the bone remodeling cycle?
Calcitonin
What do osteoclasts release back into the blood stream?
Calcium
What is the long part of the bone called?
Diaphysis
What is the inside membrane of bone?
Endosteum
What is the conversion of cartilage to bone?
Ossification
What bone cells produce new bone cells?
Osteoblasts
What is the fifth step in bone remodeling cycle?
Osteoblasts
What bone cells dissolves bone?
Osteoclasts