Skeletal System Flashcards
What are the seven tissues found in the skeleton?
- cartilage
- bone tissue
- epithelium
- nerve
- blood-forming tissue
- adipose
- dense connective tissue
Name the five functions of bone.
- supporting and protecting soft tissues
- attachment site for muscles
- storage of calcium & phosphorus
- blood cell production
- triglyceride storage
Which type of marrow is found in the spongy bone of adults?
red marrow
What is the function of yellow marrow?
stores triglycerides
What is the function of red bone marrow?
red blood cell production
What is the term for red blood cell production?
hemopoiesis
Name the four types of bone cells.
- osteogenic cells
- osteoblasts
- osteocytes
- osteoclasts
What is the name for organic bone matrix?
osteoid
What is inorganic bone matrix called?
hydroxyapatite
Which bone matrix gives bone its density?
hydroxyapatite (inorganic)
Which bone matrix is made up of collagen fibers?
osteoid (organic)
Which bone matrix is responsible for a bone’s tensile strength?
osteoid (organic)
Which bone cells are responsible for building up bone?
osteoblasts
Which bone cells are the precursor to osteoblasts?
osteogenic cells
What are osteocytes?
mature cells that no longer secrete matrix
Which bone cells break down bone?
osteoclasts