ch. 6 Flashcards
most complex bony structure
skull
what are the two divisions of the skull
cranial bones and facial bones
what type of bones are skull bones
flat
sutures on the skull
coronal, sagittal, squamous, and lambdoid
two parts of cranium
cranial vault and cranial floor
the cranial vault protects
superior and lateral brain
cranial floor protects
bottom of the brain
anterior cranial support
frontal lobe of cerebrum
middle cranial fossa craddles
temporal lobes of cerebrum
posterior support
cerebellum
bones of the cranium
frontal, parietal, temporal, occipital, sphenoid, ethmoid
frontal bone is the
forehead and orbits
parietal bone
cranial vault, attach jaw temporalis
temporal
comprise jaw and ear joints
occipital
articulates with our vertebra
sphenoid key stone
articulates cranium with bones
sella turcica is important
for endocrine system
pituitary glands sits in
sella turcica
ethmoid forms
nose
ethmoid’s perp plate
nasal septum
ethmoid cribiform plate supports
olfactory bulbs
maxilla contains
upper jaw and orbit
maxilla’s hard palate seperates
nasal and oral cavity
palatine bone makes up
posterior hard palate
zygomatic bone makes up
cheek bone
lacrimal bones contain
tears
inferior nasal conchae create
airflow and trap mucus in nose
is only movable bone face
mandible
your skull is what size at birth
1/4 of body length (2x of human)
fontanelles allow
skull distoration during birth
fontanelles are bits of
fibrous region
sutures start developing at what age
5
fontanelles end
2-10 months after birth
craniosysosis
babies with premature fusion of cranium bones
hyoid bone is not apart of the
skull
hyoid helps
move tongue around, support larynx
vertebral column does
transmits weight to lower body, protect ribs and spinal cord
how many vertebral
33
how many cervical
7
how many thoracic
12
how many lumbar
5
how many sacrum
5
how many coccyx
4
lumbar bear
most of our weight
thoracic and lumbar correlate with
different combinations
healthy spine curvature
thoracic convex curvature, sacral convex curve, cervical curve concave lumbar concave
lordosis is
exenuated lumbar curvature
lordosis looks like
backwards C ))))))
lordosis is usually
obeise and pregnant
kyphosis is
hunchback
kyphosis looks like
C
kyphosis can be caused by
osteoporosis, fractures
thoracic cage contains
sternum, ribs, and costal cartilage
ribs have pairs of
7 true. 3 false, 2 floating
first 7 ribs are
true vertebrosternal ribs
second 3 ribs are
false vertebronchondral ribs
gidles help attach
to axial skeleton
scapula is reffered to as
shoulder blade
scapula glides against
thorax
scapula is the only bone that
articulates with upper limb itself in the glenoid cavity
the clavicle is refereed as
collar bone
clavicle articulates with
a.c. joint and manubrium to allow brace shoulder
funny bone is
humerous
humerus articulate distally with
radius and ulna
how many carpal bones?
8
radius and ulna articulate with
carpal bones
metacarpals support
palm of the hand
phalanges are the
fingers
the thumb has how many phalanges
2
pelvic girldle attaches
lower limb to axial skeleton
names for hip bone
pelvic bone, coxal bone, hip bone
DO NOT call the hip bone the
pelvis
hipe bone is how many bones
3
hip bone doesn’t fuse until
midway through 20
most superior bone of the pelvic girldle
ilium
ilium articulates with
sacrium
bony part you sit on
ischium
bone most anteriorly in the hip bone
pubis
pubic symphysis
provides cushion
the pelvis is:
2 hip bones +sacrum+coccyx
pelvic inlet
sacral promontory line
pelvic inlet breaks up
greater and lesser pelvis
sexual dysforxisim is
different between men and women
female pelvis is
wider in every area
the birth canal in the female
pelvis to go through
femur articulates with
hip bone
femur distally articulates with
tibia/patella
fibula only articulates with
tibia
fibula helps
support ankle
tarsal bones form
ankle
talus forms
with tibia
calcaneus is the
heel bone
