Musculoskeletal System Flashcards
arthr/o
joint
burs/o
bursa, sac of fluid near joint
chrondr/o
cartilage
erg/o
work
fasci/o
fascia
kin/o, kinesi/o
movement
muscul/o
muscle
my/o
muscle
myel/o
bone marrow, spinal cord
oste/o
bone
synov/i
synovial fluid, joint, or membrane
ten/o, tendin/o
tendon
ton/o
tone, pressure
What are the functions of bones?
- form the skeleton
- provide the chief means of support for the body
- provide the mechanism for motion
- protect vital organs
- serve as a production factory for blood cells
- store calcium, phosphorus, and magnesium salts
What are the shapes of bones?
- long
- tubular
- short
- sesamoid
- cuboidal
- flat
long bones
longer that they are wide and found in the limbs (like the femur and humerus)
tubular bones
long bones
short bones
roughly cube shaped bones like carpal and tarsal bones
sesamoid bones
- short bone shaped like a sesame seed formed within the tendons
- cartilaginous in early life and osseous in the adult
- largest sesamoid bone in humans is the patella
cuboidal bones
short bones
flat bones
- consist of a layer of spongy bone between two thin layers of compact bone
- flat cross section, not rounded
- skull and ribs are examples
- have marrow but no marrow cavity
irregular bones
bones that don’t fit above, like the mandible and vertebrae
cartilage
a type of flexible connective tissue with no blood vessels
types of joints
fibrous, cartilaginous, synovial
synovial joints
- the most common type of joint
- articular cartilage that covers the bone ends
- joint cavity lined with a synovial membrane, which secretes a thick, viscid, slippery mucous that cushions the joint and allow smooth motion
- joint capsule of fibrous connective tissue that surrounds and provides stability of the joint
- accessory ligaments that give reinforcement
axial skeleton
skull hyoid ribs sternum vertebrae sacrum
appendicular skeleton
shoulder girdle
pelvic girdle
extremeties