Skeletal System Flashcards
Functions
- support and protection
- body movement
- produces blood cells
- storage of minerals and fats
Function 1
support and protection
function 2
body movement
function 3
produce blood cells
function 4
storage of minerals and fats
how many bones are in your body?
206 bones
Axial skeleton (80 bones)
head and trunk of vertebrate
central axis of human skeleton
supports upright position and protects internal organs
appendicular skeleton
portion of the skeleton of vertebrates made up of bones that support appendages
limbs
aid in movement of body
arms, forearms, hands, pelivs
bone structure- long bone
- epiphysis (end)
- diaphysis (shaft)
- articular cartilage (hyaline cartilage, padding)
- periosteum (membrane that covers entire bone)
proximal epiphysis
the epiphysis that is closest to the bodys center
distal epiphysis
the one that is the farthest away
inside the long bone- medullary cavity
hollow chamber filled with bone marrow red marrow (blood) yellow marrow (fat)
types of bone tissue
compact
spongy
compact bone tissue
wall of the diaphysis
spongy bone tissue
cancellous, epiphysis- red marrow
classification of bones-
long short flat irregular sesamoid
diaphysis
shaft or central part of the long bone
articular cartilage
smooth, white tissue that covers the ends of bones where they come together to form joints
periosteum
dense layer of vascular connective tissue enveloping the bones except at the surfaces of the joints
red bone marrow
soft, spongy tissue that has many blood vessels
contains blood stem cells that can become red blood cells, white blood cells, platelets
function of yellow bone marrow
aids in the storage of fats in cells called adipocytes
joints
also called an articulation, is any place where adjacent bones or bone and cartilage come together to form a connection
structural joints
fibrous joint
cartilaginous joint
synovial joint
fibrous joint
is where the adjacent bones are united by fibrous connective tissue