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Chapter 3

Skeletal System

TermDefinition
haima blood
poiesis making or forming
hematopoiesis produces red blood cells in the bone marrow
two parts that divide skeleton axial and appendicular
appendare add or append
axial skeleton forms the vertical axis
anterior view front view
posterior view back view
maxilla upper jaw, nose, orbits (eye sockets) and roof of mouth
mandible lower jaw
clavicle long skinny bone above rib cage
manubrium chest
sternum bone in middle of rib cage
humerus upper arm bone
ulna lower arm bone on the right
radius lower arm bone on the left
lilac crest pelvic bone
greater trochanter tip of upper leg bone
carpals wrist
metacarpals hand
phalanges fingers and toes
femur upper leg bone
patella knee cap
pubis vagina or penis area
tarsals ankle
metatarsals foot
appendicular skeleton 126 bones and includes the body's appendages or upper and lower extemities
cranium brain cage
ossicules bone
sutures immobile joints that hold the skull bones together
coronal suture unites the frontal bone and the two parietal bones.
sinuses air-filled spaces in the skull that lesses bone weight, moisten incoming air, and act as resonating chambers for the voice
frontal bone sinuses, forehead and area directly behind it.
orbits eye sockets
coronal suture connects the frontal bone with the parietal bone
parietal bones two of these bones crown the head, forming the roof and the upper part of each side of the skull.
squamous suture connects the parietal bones with the temporal bones
temporal bones forms the lower part of the sides of the skull and part of its floor. They also contain structures of the middle and inner ear and the mastoid sinuses.
lamboid suture connect the parietal bones to the occipital bones
occipital bones forms the rear portion and base of skull. forms movable joint with the first cervical vertebra
foramen magnum large hole. ( a large opening at the base of the occipital bone that allows the spinal cord to pass from the encephalon into the spine.
sphenoid bone looks like a bat with outstretched wings and legs extended to the back. located at the cranial floor.
sphenoid sinuses air filled spaces in the sphenoid bones
zygomatic or malar bone cheek bones
nasal bones upper part of bridge of nose
cartilage forms lower part
lachrymal bones contains lachrymal bag (where tears drain in the nasal cannula)
vomer pasrt of nasal septum