Chapter 7: Skeletal System Gross Anatomy Intro Flashcards
How many bones does the average adult have?
206
axial skeleton bones
bones down the center
skull, ossicles, hyoid, vertebral column, thoracic cage
appendicular bones
anything that goes off to the side
upper and lower limbs, pelvic and pectoral girdles
body
main part of the bone
head
enlarged, often rounded head
neck
construction between head and body
margin/border
edge of a bone
angle
a bend in the bone
ramus
branch off the body beyond the angle
condyle
smooth rounded articular surface
facet
small, flattened articular surface
process
sharp projection usually associated with a tendon or ligament connection
tubercle
rounded projection associated with a tendon or ligament connection
tuberosity
rounded projection larger than a tubercle
trochanter
tuberosity on the proximal femur
epicondyle
upon a condyle
horn
horn-shaped process
line or linea
low ridge
crest or crista
prominent ridge
spine
very high ridge
foramen
a hole in the bone
canal or meatus
tunnel
fissure
cleft
sinus or labrynth
mucous membrane-lined spaces in some skull bones
fossa
general term for a depression in the bone
notch
depression in the margin of a bone
foramen
a hole in the bone associated with nerves or blood vessels
groove or sulcus
deep narrow depression
how many auditory ossicles are there?
six (auditory ossicles)
(2) malleus
(2) incus
(3) stapes
what are the braincase (neurocranium) bones?
Paired: parietals, temporals
Unpaired: frontal, occipital, sphenoid, ethmoid
what are the facial (viscerocranium) bones?
Paired: maxillae, zygomatics, palatines, lacrimals, nasals, inferior nasal conchae
Unpaired: mandible, vomer
hamulus
hook-shaped process
lingula
flat, tongue-shaped process
what are the four principle sutures in the. skull?
squamous
coronal
sagittal
lamboid
fovea
little pit in the bone
