Chapter 3 Flashcards
ankyl/o
crooked, bent, stiff
arthr/o
joint
burs/o
bursa
chondr/i, chondr/o
cartilage
cost/o
rib
crani/o
skull
-desis
to bind, tie together
kyph/o
bent, hump
lord/o
curve, swayback, bent
Lumb/o
lumbar, lower back
myel/o
spinal cord, bone marrow
scoli/o
curved, bent
oss/e, oss/i, ost/o, oste/o
bone
synovi/o, synov/o
synovial membrane, synovial fluid
spondyl/o
vertebrae, vertebral column, backbone
a newborn’s skeleton begins as fragile membranes and cartilage, but after three months it starts turning to bone
ossification
the tough, fibrous tissue that forms the outermost covering of bone
Periosteum
the dense, hard, and very strong bone that forms the protective outer layer of bones.
compact bone
porous, lighter and weaker than compact bone. Red bone marrow located within, major bones of the arms and legs and short bones (wrist and ankle)
Spongy bone
the central cavity located in the shaft of long bones, where it is surrounded by compact bone
medullary cavity
the tissue that lines the medullary cavity
endosteum
pertaining to the formation of blood cells
hematopoietic
the smooth, rubbery, blue-white connective tissue that acts as a shock absorber between bones
cartilage
covers the surfaces of bones where they articulate, or come together, to form joints
articular cartilage
the curved, fibrous cartilage found in some joints, such as the knee and the temporomandibular joint of the jaw
meniscus
the shaft of a long bone
diaphysis
the wider ends of long bones such as the femurs of the legs
epiphyses
an opening in a bone through which blood vessels, nerves, and ligaments pass
foramen
a normal projection on the surface of a bone that most commonly serves as an attachment for a muscle or tendon
process
the place of union between two or more bones
joints
consisting of inflexible layers of dense connective tissue, hold the bones tightly together
fibrous joints
normally present on the skull of a newborn
fontanelles
allow only slight movement and consist of bones connected entirely by cartilage
cartilaginous joints
allows some movement to facilitate childbirth
pubic symphysis
created where two bones articulate to permit a variety of motions (i.e. ball-and-socket joints, hinge joints)
synovial joint
the outermost layer of strong fibrous tissue that resembles a sleeve as it surrounds the joint
synovial capsule
lines the capsule and secretes synovial fluid
synovial membrane
flows within the synovial cavity, acts as a lubricant to make the smooth movement of the joint possible
synovial fluid
bands of fibrous tissue that form joints by connecting one bone to another bone or by joining a bone to cartilage
ligaments
a fibrous sac that acts as a cushion to ease movement in areas that are subject to friction, such as in the shoulder, elbow, and knee joints where a tendon passes over a bone
bursa
protects the major organs of the nervous, respiratory, and circulatory systems
axial skeleton
makes body movement possible and also protects the organs of digestion, excretion, and reproduction
appendicular skeleton
consists of the 8 bones that form the cranium, 14 bones that form the face, and 6 bones in the middle ear
skull
which is made up of the following eight bones, is the portion of the skull that encloses and protects the brain
cranium
the anterior portion of the cranium that forms the forehead
frontal bone
two of the largest bones of the skull
parietal bones
forms the back part of the skull and the base of the cranium
occipital bone
form the sides and base of the cranium
temporal bones
the opening of the external auditory canal of the outer ear. this canal is located within the temporal bone on each side of the skull
external auditory meatus
an irregular, wedge-shaped bone at the base of the skull
sphenoid base
light, spongy bone located at the roof and sides of the nose
ethmoid bone
the three tiny bones located in each middle ear
auditory ossicles
form the upper part of the bridge of the nose
nasal bones
articulate with the frontal bone that makes up the forehead
zygomatic bones
form most of the upper jaw
maxillary bones
form the anterior part of the hard palate of the mouth and the floor of the nose
palatine bones
make up part of the orbit at the inner angle
lacrimal bones
the thin, scroll-like bones that form part of the interior of the nose
inferior conchae
forms the base for the nasal septum
vomer bone
the only moveable bone of the skull
mandible
the bony structure that protects the heart and lungs
thoracic cavity
attach posteriorly to the thoracic vertebrae, 12 pairs
ribs
a flat, dagger-shaped bone located in the middle of the chest
sternum
the bony structure that forms the upper portion of the sternum
manubrium
the bony structure that forms the middle portion of the sternum
body of the sternum
the structure made of cartilage that forms the lower portion of the sternum
xiphoid process
the shoulders form this which supports the arms and hands
pectoral girdle
a slender bone that connects the manubrium of the sternum to the scapula
clavicle
also known as the shoulder blade
scapula
an extension of the scapula that forms the high point of the shoulder
acromion
the bone of the upper arm
humerus
the smaller and shorter bone in the forearm; runs up the thumb side of the forearm
radius
the larger and longer bone of the forearm
ulna
the large, proximal tip of the ulna
olecranon
the bones that form the wrist
carpals
the five bones that form the palms of the hand
metacarpals
the 14 bones of the fingers (and bones of the toes)
phalanges
protects the spinal cord and supports the head and body (consists of twenty-six vertebrae
spinal column
the posterior portion of a vertebra. The transverse and spinous processes extend from this area and serve as attachments for muscles and tendons
lamina
made of cartilage and pads of tissue, separate and cushion the vertebrae from each other and allow for movement of the spinal column
intervertebral disks
the first set of seven vertebrae, and they form the neck
cervical vertebrae
known as T1 through T12, are the second set of 12 vertebrae. Each of these vertebrae has a pair of ribs attached to it, and together they form the outward curve of the spine.
thoracic vertebrae
known as L1 through L5, make up the third set of five vertebrae, and together they form the inward curve of the power spine
lumbar vertebrae