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Lab Exam: 2
Study Cards for 2nd lab exam
58
Anthropology
Undergraduate 2
10/20/2010

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Term
skeletal system functions
Definition
Protect organs, store lipids and minderals, providing a site for blood cell formation, and providing a system of levers that muscles use to move body
Term
collagen
Definition
elastic fibers in extracellular matrix.
Term
Cartilage
Definition
has poor blood supply and more collagen and elastic fibers than bone. Flexible
Term
Bone
Definition
has a large blood supply and highly mineralized with fewer collagen fibers. rigid structure
Term
Cartilage remains in
Definition
nose, ears, rib cage, larynx, trachea, and in joints
Term
joints
Definition
also known as articulations
Term
fibrous joints
Definition
connected by short, tough fibrous tissues and are immovable
Term
cartilaginous joints
Definition
connected by cartilage and are slightly movable
Term
synovial joints
Definition
freely movable joints that are sorrounded by a fibrous capsule lined with a synovial membrane.
Term
snynovial membrane
Definition
secretes synovial fluid in to synovial joint
Term
process
Definition
projection or protuberance of bone
Term
tubercle
Definition
small, rounded projection
Term
tuberosity
Definition
larger projection, roughened surface
Term
trochanter
Definition
large projections on the femur
Term
condyle
Definition
smooth, rounded articular surface
Term
spine
Definition
long narrow pointed projection
Term
line
Definition
small low narrow ridge
Term
torus
Definition
thick prominant ridge
Term
crest
Definition
narrow ridge, not as thick as a hole
Term
fossa
Definition
depression hollow or cavity
Term
foramen
Definition
a hole
Term
sinus
Definition
cavity lined with mucous membrane
Term
canal
Definition
passageway longer than foreman
Term
meatus
Definition
canal-like passageway
Term
facet
Definition
small, smooth, nearly flat articular surface
Term
compact or cortical bone
Definition
the smooth and homogeneous bone on the outside surface
Term
canellous bone
Definition
the porous bone beneath the hard urface composed of small trabeculae
Term
trabeculae
Definition
bars of bone that resemeble a framework of steel bars. very strong but lightweight
Term
Diaphysis
Definition
shaft of the long bone, the smooth surface is composed of compact bone
Term
epiphysis
Definition
ends of the long bone, a thin layer of compact bone with cancelelous bone underneath
Term
epiphyseal Plate
Definition
a thin area of cartilage between the diaphysis and the epiphysis that provides for longidinal growth, sometimes called growth plate
Term
Marrow/medullary cavity
Definition
central hollowed out region containg yellow lipids and red blood cells of bone marrow
Term
periosteum
Definition
a though membrane sorrounding the outisde of the bone shaft but no the articular ends
Term
axial skeleton
Definition
bones of the skull, thorax/chest, and vertebral column.
Term
appendicular skeleton
Definition
the bones of the pectoral. shoulder girdle, upper limbs, pelvic girdle, and lower limbs.
Term
transverse plane
Definition
runs horizontally, dividing the body into top and bottom, or upper and lower parts.
Term
superior / inferior
Definition
above and below - refers to placement along the axis of the body.
- head is superior to chest. legs are inferior to pelvis
Term
anterior/posterior
Definition
front / back
Term
medial / lateral
Definition
toward the midline / away from midline - the big toe is medial to little toe.
Term
dorsal / ventral
Definition
back side / belly side - these terms are interchangepble with anterior and posterior. in quadrepeds, interchangable with superior and inferior
Term
proximal / distal
Definition
toward the trunk / away from the trunk - refer to directions along the limbs. hip is proximal to ankle. wrist is distal from elbow
Term
flexion / extension
Definition
flexation decreases the angle of a joint, brings a ventral surfaces together; extension increases the angle of a joint, moving ventral surfaces apart.
Term
adduction / abduction
Definition
adduction is movement toward the midlne; abduction is movement away from midline
Term
pronation / supination
Definition
pronation is movement of the palm downward; supination is the movement of the palm upward
Term
dorsiflexion / plantarflexion
Definition
movement of the ankle joint so that you are standing on your heels ; plantarflexion is movement of the ankle joint so that you are point your toes.
Term
rotation
Definition
movement of bone around its vertical axis.
Term
circumduction
Definition
movement of a bone so that the proximal end i stabe but the distal end outlines a circle; involves flexion extension, dduction, and abduction
Term
frontal
Definition
the forehead
Term
parietal
Definition
the top sides of cranium
Term
occipital
Definition
the posterior wall and base of school
Term
foramen magnum
Definition
large opening at the base of of skull
Term
occipital condyle
Definition
are small facets on either side of the foramen magnum that articulate with the first cervicle vertebret
Term
hypoglossal canal
Definition
small opening just superior o each occipital condyle through which the 12th cranial nerve passes on its way to the tounge
Term
zygomatic bone
Definition
bone inside of eye
Term
teeth 3 section
Definition
crown is visible , neck is at the gum, and root is below gumb. - connect to maxilla and mandable
Term
mandable
Definition
jaw bone
Term
maxilla
Definition
part above jaw bone and stablizes nose
Term
disiduous teeth
Definition
fall out and give way to new teeth
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