Test 2 - Skelteal System Flashcards
Tissue Types - Epithelial
lines cavities, cover surfaces
Tissue Types - Connective
GPS
ground substance
proteins
specialized cells
Tissue Types - Muscular
moves other body tissues
Tissue Types - Nervous
conducts electrical signals
Functions of Bones - Movement
bones interact with skeletal muscles to maintain or change the position of body parts
Functions of Bones - Support
bones support and anchor muscles
Functions of Bones - Protection
many bones form hard compartments that enclose and protect soft internal organs
Functions of Bones - Mineral Storage
bones are a reservoir for calcium and phosphorous, deposits/withdrawals of mineral ions maintain proper concentrations in body fluids
Functions of Bones - Blood Cell Formation
some bones contain marrow where blood cells are produced
Movements of the Body
flexion: decrease in joint angle
extension: increase in joint angle
hyperflexion: moving past normal amount of flexion
Integumentary System
skeleton provides support
for skin and the muscles below it.
Muscular System
skeletal muscles attach to bones, which serve as levers for body movements
bone calcium may be released as needed to maintain blood levels required for muscle contractions.
The skeleton provides support
for skin and the muscles below it.
Respiratory System
rib cage and sternum protect the lungs, muscles used in breathing attach to ribs and associated cartilages
Urinary System
rib cage partially protects the kidneys, pelvis helps protect the bladder
Nervous System
skull protects the brain, vertebrae protects the spinal cord
bone calcium stores may be
released as needed to maintain blood levels required for transmission of nerve impulses
Digestive System
bone stores dietary calcium and
phosphorus, bones of the rib cage and pelvis protect organs including the stomach, liver, and intestines
facial bones have sockets for teeth
Cardiovascular System and Blood
bone calcium is available for heart
contractions that pump blood, all types of blood cells form in red bone marrow
Immunity and the Lymphatic System
white blood cells that function in body
defenses form in bone marrow
The Skeletal System
skeleton supports and helps protect soft body parts, bones joints, tendons, and ligaments all have essential
roles in moving the body and its parts
bone is a reservoir for calcium, which is vital for many body functions including muscle contractions, the transmission of nerve impulses, and blood clotting
calcium also is required for
the proper functioning of some
enzymes and of proteins in the
cell plasma membrane
Sensory Systems
skull and facial bones surround and protect sensory organs in the head, calcium in bones helps maintain blood levels required for transmission of sensory nerve impulses
Endocrine System
calcium may be released as needed
to maintain blood levels required for the formation and secretion of many hormones
Reproductive System
pelvic bones protect female reproductive organs and associated glands in males, calcium is available to help nourish a fetus and for milk production in a nursing mother
Blood as Connective Tissue
blend of living cells and matrix that contains protein fibers, like collagen and calcium
Bone Remodeling
bone tissue is constantly remolded, calcium continually enters and leaves bones which helps bone tissue become resilient
when bone is subjected to mechanical stress, more bone is deposited than removed
bone remodeling helps meet demands for dietary calcium
Medical Terminology
oste/o: bone
-blast: typically a builder, immature cell
fibr/o: fibers; usually protein fibers
-cyte: cell
chondr/o: cartilage
