Vertebrae
How many vertebrae are in the Lumbar?
5
What is the difference between Osteoprogenitor, Osteoblast , and Osteoclast?
Osteoprogenitor=bone, first, make, create
Osteoblasts= mitosis, reproduction,make
Osteoclast=breaks down
Name at least 2 bone functions.
Support
Storage of minerals
Production of blood cells (hematopoiesis)
Protection
Anchorage
Triglyceride storage
Hormone production
How many bones does an adult skeleton have?
206
Thoracic
What type of cartilage is found in intervertebral discs?
Fibrocartilage
What are the bone classifications?
Long
Short
Flat
Irregular
Sesamoid
Osteocytes are found in _______.
Lacunae
What type of classification are the vertebrae?
Irregular
The arrangement of bones & muscles of the pectoral girdle allows a high degree of ________ but a low level of ______.
A. strength; length
B. flexibility; stability
C. stability; flexibility
D. flexibility; endurance
B
When the bone growth results in outward expansion due to the production of cartilage matrix on the outer face of the tissue is called_.
Appositional growth
Name the Cranial Bones
Parietal
Ethmoid
Sphenoid
Temporal
Occipital
Frontal
How many bones form the vertebrae column?
26 if Sacral is counted as 2 (for sacral and coccyx), but 7+12+5+5=29
What displacements are least and most common, why?
Hip, Shoulder
Shoulder is most common
Hip is least common due to the femur sitting on the acetabulum.
The axial skeleton includes what 3 things?
Skull, vertebral column, and rib cage
Name 2 fractures that can happen within the bones.
Comminuted=3+ pieces
Spiral=excessive twisting
Depressed=bone is pressed inward
Compression=bone is crushed (vertebrae)
Epiphyseal= epiphysis separates from diaphysis
Greenstick=kids get it a lot, not a full break
Which vertebrae has no body?
Atlas
Explain these:
Synarthroses
Amphiarthroses
Diarthroses
Synovial joints
Syn=no movement
Amphi=Slight movement
Dia=freely movable
Synovial joints=this is diarthroses
The hip bone is comprised of 3 regions which are_,_, & _.
Ilium, Ishium, Pubic
Name the facial bones.
Vomer
Conchae
Nasal
Mandible
Maxilla
Palatine
Zygomatic
Lacrimal