ch. 4 Flashcards
musculoskeletal system
moves you and allows you to move objects.
skeleton
supports load
muscles
provide power to move you and objects both small and large
Epiphyses
ends of bones, singular (epiphysis)
This allows the bone to continue to grow lengthwise.
The epiphyseal plate turns to bone @ end of puberty
Diaphysis
middle of bone; also called shaft
Metaphysis
neck; connects the diaphysis with the epiphysis
Axial
Skull
Spine
The spine is made up of vertebrae.
Vertebral sections include the cervical, thoracic,
lumbar, and sacral.
Sternum
Ribs
Appendicular
Upper extremities: Arms, Wrists, Hands
Lower extremities: Legs, Ankles, Feet
Divisions of the skeletal system
Axial and appendicular
Oste/o
bone
Crani/o
skull
Cervic/o
neck
Spondyl/o
vertebra
Lumb/o
loin; lower back
Brachi/o
upper arm
Dactyl/o
fingers
Carp/o
wrists
Cost/o
rib
Femor/o
femur
Tibi/o
sharp bone that runs down front of leg– tibia
Tarso
ankle
joint
- Where two bones meet
* Most joints allow movement between the bones.
Joint movements
- Flexion and extension
* Adduction and abduction
Joints are held together by supportive tissues
- Ligaments
* Tendons
Joints can have supportive structures
- Cartilage
* Bursae
Ligament
bone to bone connection
Tendon
bone to muscle connection
Chondr/o
cartilage
Bursae
sacs of fluid under tendons which keep muscles and bones moving smoothly as well, decreases friction
Cartilage
surrounds bones at the joints and allows smooth movement among them; at ends of joints
Arthr/o
joint
Burs/o
bursa- singluar fluid filled sac
fascia
covers the outside of the muscle
Muscles
- Collection of bundles of muscle fibers
- Covered by fascia
- Attached to bones via tendons
- Function is to move the bones
Several types of muscle:
- Skeletal/striated
- Cardiac
- Smooth
skeletal muscles
aka striated muscle responsible for movement of bones
cardiac muscle
heart muscle
smooth muscle
involuntary muscle
Ten/o
tendon
Tend/o
tendon
Tendin/o
tendon
muscul/o
muscle
my/o
muscle
myos/o
muscle
kinesi/o
muscle movement or activity
ton/o
how much tension you have in muscle,
tone; tension; holds together muscle strength
Fasci/o
fascia (fibrous connective tissue binding muscles together)
tax/o
nervous sys sends signal to contract
-paresis
partial paralysis
-plegia
full paralysis
ankyl/o
stiff or bent
most common musculoskeletal complaint
pain (-algia/-dynia)
Atrophy
process of muscle wasting
Hypertrophy
process of muscle getting bigger
Crepitus
creaks/feels like grinding
genu valgum
abnormal knees, knees in,
genu varum
abnormal knees, knees out
dystaxia/ataxia
poor coordination/movement
dyskinesia
cant stop movements/tremor
graphospasm
writing cramps
myasthenia
muscle weakness
diagnostic procedures:
Observation (limp, pain from pressure) Radiologic tests: X-ray computed axial tomography (CAT or CT scan) MRI
Arthrocentesis
puncture joint