Ch 5 Review
Manubrium
"knot of tie", top of sternum
amphiarthroses
slightly movable joints
Osteoclasts
Bone-destroying cells
Sharpey's Fibers
Fibers that connect the periosteum to underlying bone
Internal Acoustic Meatus
allow cranial nerves to pass
Foramen Ovale
allows branch of cranial nerve to pass, opening posterior of sella turcica
Carotid Canal
allows internal carotid artery to enter cranial cavity
Mastoid Process
attatchment site for muscles
Osteoblasts
bone forming cells
Cribriform Plates
bony plates through which olfactory fibers pass to brain from nasal mucosa
Osteon
central canal and all the lamellae surrounding it, "Haversian system"
Central (Haversian) Canal
central canal which carries blood vessels and nerves through the bony matrix
Lamellae
concentric rings of bone matrix radiate out from central canal.
Fontanels
fibrous membranes between bones of fetal skull, which allow head to be slightly compressed during birth, allow for brain growth in later fetal life
Atlas
first cervical vertebra, contain large depressions,joint that allows to nod yes
diarthroses
freely movable joints
acetabulum
fusion of ilium, ischium, and pubis, deep hemispherical socket that recieves femur
synarthroses
immovable joints
ischium
inferior portion of coxal bone, "sit-down" bone
ilium
large flaring bone, forms most of the coxal bone
Dens
large vertical process that acts as a pivot point, allows to nod no
Osteocytes
mature bone cells
pubis
most anterior part of coxal bone
Jugular Foramen
opening through which internal jugular vein and cranial nerves pass
Occipital Condyles
rounded projections that articulate first cervical vertebra (atlas)
perforating (Volkmann's) canals
run into the compact bone at right angles to the shaft
Sella Turcica
saddle-shaped region in sphenoid which hold pituitary gland
Axis
second cervical vertebra, acts as pivot for rotation
Styloid Process
serves as attatchment site for muscles and ligaments of the neck, "needlelike" projection
Canaliculi
small hair-like canals extending from the central canal. Allow for diffusion of nutrients, waste products, hormones, etc. to lacunae.
Lacunae
small spaces between the lamellae which contain osteocytes
Hematoma
the collection of blood under the skin as the result of blood escaping into the tissue from damaged blood vessels. bruise
Trabeculae
the irregular latticework of thin bony plates in spongy bone tissue
superior and middle nasal conchae
thin, coiled plates that extend from ethmoid to nasal cavity, increase surface area of mucosa, therefore increasing mucosa's ability to humidify incoming air
obturator foramen
through which small number of blood vessels enter the thigh
Xiphoid Process
tip of sternum
Crista Galli
vertical projection to which dura mater attatches
