Skeletal System Part 1 Flashcards
What includes the skeletal system?
Bones, cartilages, ligaments and C.T,
How many bones does an adult skeleton has?
206
What are the six functions of skeletal system?
Support and protection, storage of minerals and lipids, hematopoiesis and movement
What supports soft tissue?
Framework for attachment
What supports the teeth?
The mandible and maxilla.
What protects the brain?
The skull
What protects the lungs?
The ribs
What helps to balance electrolytes?
The storage of minerals
What are the six major minerals that skeletal system storages?
Calcium, magnesium, phosphorous, potassium, sodium, magnesium and carbonate.
What is the function for calcium?
Generates electrical impulses, muscle contraction and cell transportation.
What is the function of Yellow Bone Marrow?
Storages fat that equal to energy reserves.
What is Acid-base balance?
Balance the body’s PH release phosphates and carbonate salts.
What means Hematopoiesis?
Blood formation.
What is hematopoiesis function?
I’m Red bone marrow produces blood cells (RBC’s, WBC’s and platelets).
What contains almost all child bones?
Contain bone marrow.
What happens to the bone marrow while we growth?
It gets replaced with yellow marrow.
Where do adults have the limited red marrow?
In the skill, ribs, and vertebrae.
Why do bones act as levers?
Because the pull the muscle to move.
What serves as stabilizers for bones and muscles?
Ligaments, tendons, bursa and meniscus.
What are the 6 classifications of bone?
Sutural, long, short, flat, irregular & sesamoid.
What is the sutural bone?
A small, flat irregular between flat bones.
What is a long bone?
A bone liner than it’s wide.
Ex: arms, legs or fingers.
What is a short bone?
A small & bony bone.
Ex: carpals.
What is a flat bone?
Broad, sheet-like bones.
Ex: ribs, roof of skull.
What is an irregular bone?
Diversity of shapes.
Ex: vertebrae, facial bones.
What is a sesamoid bone?
Small, flat,sesame seed shaped.
Ex: patella.
What are the main structures that all long bones have?
Diaphysis, Epiphysis, and Metaphysis.
What is a Diaphysis?
A shaft of a long bone (the body).
What contains the wall of the diaphysis?
Compact bone.
What is in between the walk of Diaphysis?
The medulla cavity (marrow cavity)
What contains the medulla cavity?
Il hi concentration of blood vessels, and some yellow or red marrow. Endosteum: layer of reticular C.T.
What is Epiphysis?
The end of the bone (both proximal and distal end)
What is Epiphysis composed of?
Spongy bone.
What is Metaphysis?
Epiphyseal plate or line between the shaft and the end of the bone.
What is the Epiphyseal line made of?
Cartilage.
What type of tissue is bone?
C.T.
What are the 3 structural composed of bone?
Cells, ground substances and protein fibers.
What are the 3 types of cells of bone?
Osteoblasts, osteocytes and osteoclasts.
What is the bone solid or hard?
Due to mineral salts, calcium and phosphate.
The minerals found in the bone are responsible for what?
Compression strength of the bone.
What happens to the bone when has a lack of these minerals?
Loos of compression strength and bones will bend.
What condition means a lack of minerals of the bone?
Rickets.
What is collagen responsible for?
Strength and flexibility of the bone.
