SKELETON SYSTEM CONSIST OF
BONES,JOINTS,CARTILAGE,LIGAMENTS
WHATS THE FUNCTION OF SKELETAL SYSTEM
IT SUPPORTS THE WEIGHT OF BODY,THE SOFT BODY ORGANS,ENABLES BODY TO MOVE,STORES MINERALS, CALCIUM AND PHOSPHOROUS.
WHAT PRODUCES BLOOD CELLS
RED BONE MARROW
LONG BONES
LONGER THEN THEY ARE WIDE
SHORT BONES
SHAPED LIKE CUBES ARE FOUND PRIMARILY IN THE WRIST AND ANKLES
FLAT BONES
FLAT CURVE , FORM RIBS BREATS BONE AND SKULL
IRREGULAR BONES
DIFFERENTLY SHAPED, NOT CLASSIFIED LONG, SHORT OR FLAT, INCLUDE HIP BONES, VERTABRAE AND VARIOUS BONES IN SKULL
WHATS ANOTHER WORD FOR BONE
OSSEUS TISSUE
OSTEOCYTE
BONE CELLS
SCRETE INTRACELLULAR MATRIX
CONTAIN CALCIUM,MINERALS,AND PROTEIN FIBERS
WHAT IS SPONGEY BONE ALSO CALLED
CANCELLOUS
WHAT ARE TWO TYPES OF BONE
COMPACT BONE-DENSE AND HARD FOUND IN SHAFTS AND SURFACE OF OTHER BONES
SPONGY BONE LESS DENSE FOUND IN THE END OF LONG BONES ITS IN THE CENTER OF OTHER BONES
WHAT IS TIGHTLY PACKED, DENSITY GIVES IT STRENGTH
COMPACT BONE
OSTEON OR HARVERSION
SYSTEM IN MICROSCOPIC UNIT OF COMPACT BONE
WHAT DOES EACH OSTEON HARVERSION SYSTEM CONTAIN
THEY CONSIST OF MATURE OSTEOCYTES ARRANGED IN CONCENTRIC CIRCLES AROUND LARGE BLOOD VESSELS
LONG BONE
CONTAINS SITES OF GROWTH AND RESHAPING AND STRUCTURES ASSOCIATED WITH JOINTS
WHATS AT THE MIDDLE OF LONG BONE
MIDDLE DIAPHYSIS
WHATS AT THE END OF EACH LONG BONE?
EPIPHYSIS
WHAT SUPPLIES THE SPONGEY BONE WITH BLOOD CELLS
RED BONE MARROW USED THROUGH OUT THE BODY
SPONGY BONE ALSO CALLED CANCELLOUS BONE
DOES NOT HAVE HAVERSIAN CANAL
THE AREA AROUND COMPACT BONE
ITS FILLED WITH OSTEOCYTES FILLED WITH PROTEIN FIBERS CALCIUM AND OTHER MINERAL
What do osteoblast do
secret calcium and minerals into spaces between the membrane there by forming bone
what happens with ossification of long bones
bone tissue replaces cartilage
what does osteoblast do
secrete calcium and other minerals into the spaces between the membranes there by forming bone
what is ossification
formation of bone
Articular cartilage does what
its on outer surface of epiphysis , forms a smooth shiny surface it decrease friction within a joint
What happens if you have an injury in peristoneum of long bone
major consequences due to the fact it carries our blood supply
What does periosteum do
protects bone serves as a point of attachment for muscle
what is periosteum
tough fibrous tissues that that covers the outside of diaphysis
medullary cavity
hollow center of the diaphysis the inside is line with connective tissue called endosteum
Epiphyseal disc
band of hyaline, located at each end of long bone epiphysis and diaphysis this is where growth plate is
what is articulation
where two bones meets
WHAT IS EPIPHYSIS COVERED IN
CARTILAGE as well as a thin layer of compact bone
WHAT DOES THE DIAPHYSIS DO IN LONG BONE
IT PROVIDES STRENGTH AND IS PRIMARILY OF COMPACT BONE
sinus
A cavity or hollow space
meatus
tunnel or tube like
foramen
opening in the whole
Trochantor
large tuberosity found only on the femur
facet
small flattened surface
head
an enlarged and rounded end of a bone
what get messed up when you break a hip
the femoral neck
condyle
large rounded knob that usually articulates with another bone
what does exercise and weight barring do
keep calcium in the bone and increase bone mass
what does weight bearing do?
factors that stimulates bone growth
bone resorption
widens bone, moves calcium from bone to blood , plays a crucial role in blood calcium levels
longituadinal growth
ceases after puberty
epiphyseal disc
more sensitive to estrogen this causes girls to be shorter then boys
estrogen and testosterone
cause the epiphyseal disc to fuse inhibiting further longitudal growth
growth hormone
stimulates growth
longitudinal bone
growth cease when epiphyseal disc becomes ossified and fused
as long as cartilage continues to form within
The epiphyseal disc the bone will continue to lengthen
what are two types of bone growth occurs from infancy to adulthood
longitudinally height of individual
thicker and wider to support weight of the adult
what happens as baby matures
osteoblast invade the cartilage and gradually replace it with bone untill all but articular cartilage and the epiphyseal disc have been replaced by bone
ossification of long bone
when bone tissue replaces cartilage
the fetal skeleton
composed largely of cartilage