test 2 Flashcards
bone is made up
25% water
25% collagen fibers
50% crystallized mineral salts
osteoblasts
bone building cells
osteocytes
mature bone cells
osteoclasts
release enzymes that break down bone (resorption)
bone may be categorized as
compact
spongy
osteopenia
low none mass
osteoporosis
fractures occur easily
more common in women then men
osteoporosis biophosphonates
fosomax
actonel
boniva
antiresportives estrogen replacement therapy
premarin
what hormones stimulate osteoblastic activity
estrogen
testosterone
rickets
inadequate calcification of bone
deficiency of vitamin d
in children
osteomalcia
adult rickets
deficiency of vit d
osteoarthritis
degeneration of articular cartilage
osteogenic sarcoma
bone cancer
develops in teenagers when they’re growing rapidly
osteomyelitis
infection of bone
vitamin a stimulates activity of
osteoblasts
vitamin c is needed for synthesis of
collagen
vitamin d helps build bone by
increasing the absorption of calcium from foods in GI tract into the blood
there are how many bones in the body
206
fissure
narrow slit
faramon (foramina)
opening
tuberosity
a large prominence on a bone
axial skeleton
bones that lie around the longitudinal axis of the human body
appendicular skeleton
bones of the upper and lower limbs
plus the bones that connect the axial skeleton
frontal bone
the bone in the front lol
temporal bones
external auditory meatus (ear canal) found in the temporal bone
sphenoid bone
the keystokne
occipitaal bone
the back of the skull
nasal bone
where glasses sit
maxillae
the upper jaw
a deficiency in folic acid may cause cleft lip, cleft palate
zygomatic bone
cheek bones
mandible
the only movable skull bone
the lower jaw
temperomandibular joint
temporal bone/ mandible
bruxism
trauma
fontanels
soft spots found in the skull of infants
important for the brain to grow
hyoid bone
in the neck
big sign of strangulation
vertebral column
spine, backbone, spinal column
sternum
consists of manubrium, body, xiphoid process
ribs
12 pairs
scoliosis
makes the spine look like a c or s
kyphosis
humpback
lordosis
exaggerated lumbar curve
teeth from the front to back
incisor
cuspid
first bicuspid
second bicuspid
first molar
second molar
third molar (wisdom teeth)
adults have how many teeth
32 (including wisdom teeth)
children have how many tewth
20
silver fillings
amalgam
composite filling
tooth color
“white fillings”
men have how many liters of blood
5-6 liters
females have how many liters of blood
4-5 liters
temperature of blood
38 degrees 100.4 f
blood plasma
liquid
91.5% water
blood formed elements
red blood cells
white blood cells
platelets
universal recipitant
AB blood has antigens A and B
universal donor
Type O blood has neither antigen
red blood cells
erythrocytes
carries oxygen to body cells
biconcave disc
strong flexible plasma membrane
lacks nucleus
white blood cells
leukocytes
fights disease and foreign invaders
platelets
aids in blood clotting
hematocrit
percentage of total blood volume occupied in red blood cells
satellite droplets
when blood falls from a high velocity, it overcomes its natural cohesiveness and separates from the main droplet
spiking patterns
form around the droplet edges when blood falls onto a less than smooth surface
lines of convergence
two or more blood splatters can pinpoint the location of the source
luminol
chemical used by investigators to locate traces of blood even when its cleaned or removed
reactions blue luminescence
LCU leuco Crystal Violet
one type of chemical process that’s used for enhancement
make the blood evidence more visible so it can be photographed and analyzed
male chromosomes
XY
female chromosomes
XX
how many chromosomes do humans have
46
DNA molecule is shaped as a
double helix
James Watson and Francis Crick
DNA- double helix
Rosalind Franklin
use x ray diffraction
chromatin
loose coils in nondividing cells
diffuse
chromosomes
tightly coiled in dividing cells
condensed
nitrogenous bases
Adenine
Thymine
Cytosine
Guanine
Pentose sugar in DNA
deoxyribose
DNA composed into three parts
nitrogenous base, pentose sugar, phosphate groups
DNA pairing
AT
CG
DNA controls the production of
proteins
chains of amino acids bound together
DNA is found where
nuclei of most cells
cells with nuclei
WBC –> DNA obtained from blood
buccal –> most abundant
semen
saliva
urine
hair follicle
teeth
bone
tissueb
who can draw blood (professional)
phlebotomist
DNA profiling, DNA fingerprinting, DNA typing
process of identifying an individual based on their unique DNA characteristics
Alec Jeffereys
Process of DNA fingerprinting University of Lehigh
1985
knighted in 1994
gel electrophoresis
-technique to separate DNA fragments
- electrical current is moved through a gel substance causing molecules to sort by size
- the smaller lighter molecules will move the farthest on the gel
- after developing the fragments can be visualized for characterization