Functions
What does red bone marrow do?
Hematopoiesis: produces red cells, white cells & platelets
A line of union between skull bones is called a _________.
suture
Name for an opening through which blood vessels and nerves pass through.
Foramen
What is the name of the band of cartilage found in the ends of long bones when bone is still lengthening?
Epiphyseal Plate or Disc
What is the name given to a mature bone cell surrounded by matrix?
Osteocyte
This is a dense connective tissue layer around a long bone that tendons can attach to.
Periosteum
Go to the skeleton and locate...
the radius and ulna AND
the tibia and fibula
Correct identification will be noted
by the teacher.
List three features or bone markings on the mandible.
mandibular condyle, coronoid process & mental foramen
TRUE or FALSE
Long bones like the femur and tibia are intramembranous bones.
FALSE
What is the name for the opening in the vertebrae that the spinal cord passes through?
vertebral foramen
List two examples of how the skeletal system helps protect internal organs.
Skull-brain
thoracic cage- heart & lungs
An adult skeleton has _______ bones. A baby has
MORE/LESS than this.
206 MORE
List three features of the temporal bone.
external acoustic meatus, mastoid process, styloid process, zygomatic process of the temporal bone
________________ bones start out as cartilage models and _______________ bones develop between layers of connective tissues.
endochondral
intramembranous
An _________________ deposits bone matrix and an _________________ breaks down bone matrix.
osteoblast
osteoclast
Osteonic canals and perforating or transverse canals both do this in compact bone.
Contain blood vessels and nerves
Identify the true, false, and floating ribs.
Give the # of pairs for each.
True:7
False:5
Floating: 2
In our skull, _________ are the cavities within the bones.
Sinuses
In endochondral ossification, the periosteum forms as the cartilage breaks down. __________ bone starts to form first in the __________ of a long bone. ____________ bone forms around this. Lastly, ___________ bone forms in the ________.
spongy
diaphysis
compact
spongy
epiphyses
________________ marrow stores _________ in the ____________ cavity of a long bone.
yellow
fat
medullary
List 4 of the 5 functions of the skeletal system
1. Movement
2. Formation of blood cells
3. Protection
4. Storage of minerals
5. Support & Shape
List the three parts of the sternum.
Manubrium, body & xiphoid process
The atlas is the top most vertebra. It articulates with the __________ __________ on the skull.
occipital condyles
Another name for bone development is ___________.
ossification
List the # and a characteristic for each of the following types of vertebrae.
Cervical
Thoracic
Lumbar
7: bifid, transverse foramen
12: articulate with ribs
5: largest & strongest