organs of the skeletal system
tissues of this system
bone tissue, cartilage, blood, connective tissue,
framework and surround organs
enclose soft organs
within bone marrow (Ca++ and P stored)
Blood cell formation
within bone marrow blood cells are formed
blood cell formation within bone marrow
How many bones in the adult body?
open spaces within the bone
a.k.a spongy bone
shaft of bone... mainly compact bone.
ends of long bone...mainly spongy bone.
bone covering, or membrane
forms blood cells... found within the epiphysis of long bones and spongy bone of flat bones.
flat... found within the medullary cavity.
mature bone cells
osteocytes are found within these "cavities"
Osteocytes form circles called
Lamallae form around
Haversian (or osteonic) cells
transportation system for bone cells
allow communication to occur.
Most bones form from
The process of bones forming is called
bone forming CELLS are called
bones & cartilage of the head and trunk
bones & cartilage of the limbs
this encloses the brain
Identify the facial bones
nasal bones, maxillary bones, and mandible
suspended in the mid neck above the larynx.
identify the two bones forming the "tailbone"
neck region (1st seven vert)
trunk (12 vert)
lower back (last 5 vert)
This is attached to the 1st 7 pairs of ribs
these are not attached to the sternum
What does the thoracic cage do?
protect the heart, lungs, and major BVs.
Pectoral girdle contains
clavicle & scapula
pinky finger to forearm
thumb to forearm
Coxal bones are also known as
Coxal bones are composed of
ilium, ischium, and pubis
thigh bone is known as
identify the leg bones
tibia, fibula, and patella
articulations are known as
This is where two or more bones come together
Identify the 3 types of joints
synovial, fibrous, and cartilaginous
between goes that are close together, have limited movement, known as "immovable joints"
fibrous joint example
sutures of the skull
schock absorbers & equalize pressue, united by fibrocartilage. limited movement.
Cartilaginous joint example
Must have articulating cartilage, capsule, ___ fluid, ligaments, bursae, and tendon sheaths.
flattened sacs of fluid
There are six types of synovial joints. Identify four.
Ball and socket joints
allow most movement (shoulder or hip)
allow many motion but NOT rotational (phalanges & metacarpals)
allow sliding & twisting movements (wrist & ankle)
allow planar movement (elbow)
allow rotational moment around a central axis only (between radius and ulna)
allow a variety of movements (between carp & metacarpals of the thumb)