Skeletal System Flashcards
Four major functions of the skeletal system
Support, protection, movement, storage.
Functional for bearing strong weight and is the major supporting tissue of the body.
Rigid strong bones
A flexible connective tissue - not as rigid as bone, but stiffer than muscle tissue
Cartilage
These are elastic bonds that holds and attach bones together.
Ligaments
It connects muscles to bones and is significant for providing movement of the body.
Tendons
Minerals that are usually stored within the bone.
Calcium and Phosphorus
Another term for blood cell production
Hematopoiesis
A unique interior of the bone that is responsible for the production of red blood cells that are secreted throughout the body.
Bone marrow
Enumerate and describe the two types of bone marrow.
- Yellow marrow - consists of adipose tissue
2. Red marrow - consists of blood-forming cell and the site for RBC production.
The study of bone structure and treatment of bone disorder.
Osteology
The formation of the bone by osteoblast.
Osteogenesis (bone ossification)
A bone formation that occurs within connective tissue membrane.
Intramembranous ossification
On what type of bone does intramembranous ossification is present?
Formation of flat bones of the skull, mandibles, and clavicles
A bone formation that occurs inside the hyaline cartilages.
Endochondral ossification
True or False
Few area within the skeletal system requires the process of endochondral ossification in terms of bone formation.
False. All bones except for the flat bones, mandibles, and clavicles.
Arrange in order the process and identify which type of ossification it is.
- Accumulating osteoid laid down between embryonic blood vessels, which form a random network that is a network of trabeculae. Vascularized mesenchyme condenses on the external face of the woven bone and becomes the periosteum.
- Bone matrix (osteoid) is secreted within the fibrous membrane
- Bone collar of compact bone forms and red marrow appears.
- An ossification appears in the fibrous connective tissue membrane.
4, 2, 1, 3
Intramembranous Ossification
Arrange in order and identify the type of ossification.
- Ossification of the epiphyses; when complete, hyaline cartilage remains only in the epiphyseal plates and articular cartilages.
- Invasion of internal cavities by the periosteal bud and spongy bone formation.
- Formation of bone collar around hyaline cartilage model.
- Cavitation of the hyaline cartilage within the cartilage model.
- Formation of the medullary cavity as ossification continues; appearance of secondary ossification centers in the epiphyses.
3, 4, 2, 5, 1
Endochondral Ossification
It refers to mid-section (shaft) of a long bone
Diaphysis
The expanded end of a long bone.
Epiphysis.
It refers to the translucent cartilage found in joint surfaces; are soft tissues in comparison to bones
Hyaline cartilages
The cell responsible for absorption of bone and remodelling.
Osteoclast
It refers to the formation of new bone on the surface of existing bone; responsible of the increase in width of long bones.
Appositional growth
It refers to to the process by which growing cartilage is systematically replaced by bone to form the growing skeleton.
Endochondral growth
Enumerate the three consecutive phases of bone remodeling.
Resorption, Reversal, and Formation