Skeletal System Lab Quiz Flashcards
What does the axial skeleton consist of?
- Midline of the body
- Skull, vertebra, ribs, sternum
What does the appendicular skeleton consist of?
- Arms & legs
- Pectoral girdle
- Pelvic girdle
What are the 4 types of bones?
Long bone
Short bone
Irregular bone
Flat bone
What is the fibrous outer layer of a long bone?
Periosteum
What is in the inner later of a long bone?
Osteocytes
- osteoblasts & osteoclasts
What happens in bone marrow?
Site of cell production
What does red bone marrow do?
- Produce RBC, WBS, and platlets
Where is red bone marrow found?
Found in flat bones and ends of long bones
What color is stromal bone barrow?
Yellow
What does yellow bone marrow do?
- Produce fat, cartilage, and bone
Where is yellow bone marrow found?
Irregular and short bones and center of long bones
What is the vertebral column?
Series of vertebrae
What does the cervical vertebral column consist of?
Neck
- Atlas and axis –> supports neck
Where is the thoracic region?
Chest
Where is the lumbar region?
Loin
What is unique with the sacral section of the vertebral column?
usually, fused into one solid bone –> sacrum
Where does the sacral section sit?
Within the pelvic girdle
What is the coccygeal region?
Tail
- Coccyx
What does the cranium do?
- Encloses brain
- Encloses middle and inner ears
- Protects nose and eyes
- Frontal, parietal, temporal, and occipital bones
What does the maxilla do?
Forms facial bones
What is the zygomatic arch?
Cheeck bone
What does the palate do?
Separates nasal cavity from mouth
Where are the sinuses?
Behind the nasal cavity and connect to palate
Where is the foramen magnum?
Base of the cranium where spinal cord attaches
