SCIENCE Flashcards
Direct Correlation
as one factor increases, the other factor increases
Inverse Correlation
as one factor increases, the other decreases
Positive Correlations
Direct Correlations
Negative Correlations
Inverse/Indirect Correlations
Correlations are sometimes referred to as
variations
Positive Slope
a graph that shows a line slanting upwards;
the two factors are directly correlated
Negative Slope
a graph that shows a line slanting downwards;
the two factors are indirectly correlated
Triple Beam Balance
compares of an object to a known mass
Caliper
measures thickness
Spring Scale
measures force
Dimensions
length, width, height, depth
Barometer
an instrument measuring the atmospheric pressure, used especially in forecasting the weather and determining altitude
Red Bone Marrow
contains hematopoietic stem cells that produce red blood cells, white blood cells, and platelets
Red Bone Marrow (In Adults)
found in flat bones of the skull, ribs, hip bones, and spongy ends of long bones
Bone Marrow (At Birth)
all is red
Ligaments
strong fibrous bands that join bones together;
made up of dense bundles composed of collagenous fibers and spindle-shaped cells, fibrocytes
White Ligaments
a lot of collagenous fibers;
are inelastic
Yellow Ligaments
a lot of elastic fibers;
are elastic
Cartilage
smooth elastic tissue that protects the ends of the bones by not allowing them to rub directly together
Bursa
fluid-filled sac at the end of each long bone that provides cushion between bones and the muscles and tendons around a joint;
is lined by synovial tissue and contains a lubricating membrane called the synovial membrane
Tendons
attach muscles to bones;
made of inelastic fibrous collagenous tissue
Blood Cell Production
new blood cells are produced inside some bones;
yellow bone marrow can release blood cells in emergency situations;
red bone marrow consists of active cells that rapidly divide and multiply to develop and release blood cells
Osteocytes
bone cells;
maintain bone tissue
Osteoblasts
excrete matrix and become osteocytes;
form bone matrix
Osteoclasts
break down bone;
resorbs bone
Osteon
tubular structure in which the bone is synthesized;
made of hydroxyapatite embedded in the matrix of collagen
Lamellae
concentric layers that an osteon consists of;
compact bone tissue that surround a Haversian canal
Haversian Canal
contains the bone’s blood supply
Osteogenic cell
stem cell
Mineral Storage and Regulation
bones store and release minerals (especially phosphorus and calcium);
bones maintains homeostasis in the body by regulating mineral levels in blood
Fracure
a partial or complete break in a bone
Incomplete Fracture
involves a partial break in a bone that dies not not go all the way through a bone
Complete Fracture
involves the entire cross-section of the bone
Hairline Fracture
a small, thin crack in the bone
Torus (Buckle) Fracture
the bone deforms but does not crack
Stable Fracture
the fracture is stable and not likely to be displaced