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biology: skeletal system
Terms in this set (50)
-Support muscles and organs
-Gives shape and structure to body
-Protects internal organs
-Stores calcium and phosphorous used in metabolic processes
-Produces blood cells
Functions of the skeletal system:
spine, ribs, sacrum, sternum and cranium
arms, legs, pelvis and shoulders
outer membrane of the bone. Contains blood vessels.
Inside the periosteum, composed of rings of mineral crystals.
bone cells within the mineral rings.
located in the middle of each mineral ring, where nerves and blood vessels run through the bone.
A network of connective tissue found inside of compact bone. Adds strength to the bone without adding weight.
red and yellow
Bone marrow - Two types
red bone marrow
consists of blood vessels, fibers, and cells. It produces RBC's and WBC's. It is found in spongy bone and the ends of long bone.
yellow bone marrow
is made of fat cells. It is used as an energy reserve and fills the shafts of long bones.
is bone development.
Cartilage to bone and directly to bone.
Two types of bone development:
Bone elongation takes place near the ends of long bones in the???
The place where two bones meet is a_____.
prevent movement - skull
limited movement - vertebral column
Five kinds. have full movement
allows forward and backward movement; elbow
ball and joint socket
allows circular motion; shoulder and hip
allows head to move from side to side and up and down; top bones of the vertebral column
rotates thumbs; base of each thumb.
allows bones to slide over one another;small bones of the foot
n all movable joints, the parts that touch each other are covered with __________ to protect them from friction.
________ hold the bones of a joint in place.
The surfaces of joints secrete ________ also to protect against friction.
____________ immune system attacks body tissues causing joints to become inflamed, swollen, stiff and deformed.
degenerative joint disease causing the cartilage covering the bone to become thinner.
A skeletal muscle consists of densely packed groups of elongated cells. These groups are called ___________.
The ______ are held together by connective tissue.
The fascicles are made up of many muscle cells called __________.
Skeletal muscles are attached to bones by a tough fibrous cord of connective tissue called a _____________.
The point of attachment to the stationary bone is called the __________.
The point of attachment to a moving bone is the __________.
Muscles are arranged in ____________. One muscle can only move a bone in one direction while the other can only move it in the other direction.
the process in which bone celld gradually replace cartilage
the axial skeleton includes bone of the
tough bands of connective that holds the bone in place
Thinning of cartilage
Osteoarthritis is characterized by
ball and socket
what kind are the hip joints
break down bone
Bone building cells
_______________ marrow is made of fat cells. It is used as an energy reserve and fills the shafts of long bones.
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