Chapter 4: Musculoskeletal System Flashcards
the skeletal system consists of how many bones
206
the skeleton is the ___________________ of the body
internal framework
functions of the musculoskeletal system
- supports the body
- protects organs
- is the point of muscle attachment
- produces blood cells and stores minerals
bones and joints are skeletal
organs
axial division
appendicular division
ankyl/o
stiff joint
arthr/o
joint
articul/o
joint
burs/o
sac
carp/o
carpus
cervic/o
neck
chondr/o
cartilage
clavicul/o
clavicle
coccyg/o
coccyx
cortic/o
outer layer
cost/o
rib
crani/o
skull
femor/o
femur
fibr/o
fibers
fibul/o
fibula
humer/o
humerus
ili/o
ilium
ischi/o
ischium
kyph/o
hump
lamin/o
lamina, part of the vertebra
lord/o
bent backward
lumb/o
loin, low back
mandibul/o
mandible
maxill/o
maxilla
medull/o
inner portion
menisc/o
meniscus
metacarp/o
metacarpus
metatars/o
metatarsus
myel/o
bone marrow, spinal cord
orth/o
straight
oste/o
bone
patell/o
patella
pector/o
chest
ped/o
foot, child
pelv/o
pelvis
phalang/o
phalanges
pod/o
foot
prosthet/o
addition
pub/o
pubis
radi/o
radius, ray
sacr/o
sacrum
scapul/o
scapula
scoli/o
crooked
spin/o
spine
spondyl/o
vertebrae
stern/o
sternum
synovi/o
synovial membrane
synov/o
synovial membrane
tars/o
tarsus
thorac/o
chest
tibi/o
tibia
uln/o
ulna
vertebr/o
vertebra
-blast
immature
-clasia
to break surgically
-clast
broken
-desis
to fuse
-listhesis
slipping
-logic
pertaining to the study of
-phyte
growth
-porosis
porous
each bone is a body organ with a ___________, ____________, and __________________
blood supply, nerves, and lymphatic vessels
joints give the skeleton
flexibility
bones are also called
osseous tissue
bones are one of the ______________ materials in the body
hardest
bones are formed by the gradual process of
ossification
the fetal skeleton is made of
cartilage
the cartilage of the fetus is replaced by ___________ that mature into _____________
osteoblasts/osteocytes
old bone is broken down by
osteoclasts
in adults, bones completely replace themselves every ______ years
10
long bones
- longer than wide
examples: - femur
- humerus
short bones
- roughly as long as wide
examples: - carpals
- tarsals
flat bones
- plate-shaped
examples: - sternum
- scapula
- pelvis
irregular bones
- shape very irregular
example: - vertebrae
the majority of bones are _________ bones
long
long bones have 2 parts:
1- diaphysis
2- epiphysis
diaphysis
central shaft and contains the medullary cavity
epiphysis
the wide portion at either end of bone
articular cartilage covers the ___________
epiphysis
periosteum covers the _____________
rest of the bone
the hard exterior of the bone is called ____________ or _____________
compact or cortical bone
compact or cortical bone is found
both in the diaphysis and epiphysis
what type of bone is found inside the bone
cancellous or spongy
bones have many projections and depressions called
processes
what processes allow for joint articulation
round, smooth
what processes provide muscle attachment points
rough
head
large, smooth, ball-shaped end of a long bone
condyle
smooth rounded portion at the end of the bone
epicondyle
the projection above or on a condyle
trochantar
large rough process
tubercle
small rough process
tuberosity
large rough process
sinus
hollow cavity within bone
foramen
smooth opening for nerves and blood vessels
fossa
shallow cavity or depression within a bone
fissure
a slit-like opening
skeleton has 2 divisions
1- axial
2- appendicular
axial skeleton
contains bones of the
- head
- neck
- spine
- chest
- trunk
appendicular skeleton
contains the
- pectoral girdle
- upper extremities
- pelvic girdle
- lower extremities
the head/skull is divided into two parts
1- cranium
2- facial bones
the skull protects the
- brain
- eyes
- ears
- nasal cavity
- oral cavity
the cranium provides attachment for ___________ and ______________ muscles
chewing and head
the skull encases the brain and consists of the following bones
- frontal
- parietal
- temporal
- ethmoid
- occipital
frontal bone forms the
forehead
2 parietal bones form the
upper sides and roof of the skull
2 temporal bones form the
sides and base of skull
ethmoid forms
- eye orbit
- nose
- part of the floor of the skull
sphenoid forms
part of the floor of the skull
occipital bone forms
- the back of the skull
- part of the base of the skull
facial bones
- mandible
- maxilla
- 2 zygomatic bones
- vomer
- palatine
- 2 nasal bones
- 2 lacrimal bones
mandible
moveable lower jaw
maxilla
fixed upper jaw
Two zygomatic bones
cheeks
vomer
part of the nasal septum
palatine
roof of the mouth and floor of the nasal cavity
2 nasal bones form
the nasal septum and bridge of the nose
2 lacrimal bones
the inner corners of the eye
hyoid
- single U-shaped bone
- only floating bone in the body
- found in the neck between the mandible and the larynx
cervical vertebrae
neck region; C1-C7
thoracic vertebrae
chest region; T1-T12
lumbar vertebrae
small of back; L1-L5
sacrum
base of the vertebral column
coccyx
3-5 vertebrae attached to the sacrum
12 pairs of ribs that attach to the vertebral column and are divided into
10 pairs= attach to sternum and are known as true ribs
2 lower pairs= do not attach to the sternum and are called floating ribs
pectoral girdle
attaches the upper extremities to the axial skeleton
pectoral girdle consists of
clavicle and the scapula
pelvic girdle is called the
os coxae, innominate bone, or the hipbone
pelvic girdle
attaches the lower extremity to the axial skeleton
pelvic girdle consists of
ilium, ischium, and pubis
3 types of joints
1- synovial joints
2- cartilaginous joints
3- fibrous joints
synovial joints
- freely moving
- most common type
- ball-and-socket joint
- contain a capsule lined with lubricant-secreting synovial membrane
- bones are held together by ligaments or strong bands of connective tissue
- common in the elbow, knee, and shoulder joint
cartilaginous joints
- slight movement
- hold bones firmly in place with a solid piece of cartilage
- pubic symphysis allows the pelvis to widen during childbirth
fibrous joints
- allow almost no movement
- joined by thick fibrous tissue that can fuse to bone
- sutures in the skull
-eal
pertaining to
-ectomy
surgical removal
-iatry
medical treatment
-listhesis
slipping
-ory
pertaining to
carpal
pertaining to the carpus
cervical
pertaining to the neck
clavicular
pertaining to the clavicle
coccygeal
pertaining to the coccyx
cortical
pertaining to the outer layer
costal
pertaining to the ribs
cranial
pertaining to the skull
femoral
pertaining to the femur
fibular
pertaining to the fibula
humeral
pertaining to the humerus
iliac
pertaining to the ilium
intervertebral
pertaining to the vertebrae
intracranial
pertaining to the inside of the skull
ischial
pertaining to the ischium
lumbar
pertaining to the low back
mandibular
pertaining to the mandible
maxillary
pertaining to the maxilla
medullary
pertaining to the inner region
metacarpal
pertaining to the metacarpus
metatarsal
pertaining to the metatarsus
patellar
pertaining to the patella
phalangeal
pertaining to the phalanges
pubic
pertaining to the pubis
radial
pertaining to the radius
sacral
pertaining to the sacrum
scapular
pertaining to the scapula
spinal
pertaining to the spine
sternal
pertaining to the sternum
tarsal
pertaining to the tarsus
thoracic
pertaining to the chest
tibial
pertaining to the tibia