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26 Cards in this Set

  • Front
  • Back
levels of physical organization
cells->tissues->organ->organ systems
tissues
groups of cells that have a common function
4 tissue types
-epithelial
-connentive
-muscle
-nervous
epithelial
covers surfaces exposed to external environment
connective
specialized for the rapid conduction of messages
-neurons: actually carry the messahe
-glial cells: support for the neurons
skeletal
-attached to bone
-vol control
-striated
cardiac
-in heart
-unvol control
-striated
smooth
-nonstriated
-unvol control
-contractions in blood vessels, digestive tract, hollow organs
dorsal cavity
cranial and spinal cavities
ventral cavity
-thoracic cavity that contains the lungs and the heart
-abdominalpelvic cavity that contains such organs as the stomach and liver
circulatory system
transports nutrients, gases , hormones, wastes
temp control
lymphatic/immune system
carries fat and excess fluids to blood
destroys invading microbes
integumentary system
skin, hair, nails
endocrine system
controls physioclogical processes typically in conjunction with nervous system
nervous system
controls physiological processes in conjuction w/ the endrocrine system
digestive system
supplies body w/ nutrients that provide energy and materials for growth and maintenance
urinary system
maintains homeostatic conditions w/in bloodstream
filters toxins
respiratory system
area for gas exchange between thr blood and environment
muscular system
moves the skeleton controls movement of substances through hollow organs
skeletal system
provides support for the body
attachment site for muscles
reproductive system
male: produces sperm
inseminates female
female: produces egg cells
nurtures developing offspring
RIGHT HEART
receives blood from body .. pumps it through pulmonary artery ... to lungs where it picks up fresh oxygen
LEFT HEART
receives oxygen-full blood from the lungs and pumps it through the aorta to the body
HOW DOES THE HEARTBEAT OCCUR?
during systole the atria contract together followed by the ventricles contracting together
this is followed by diastole, a rest phase,when the chambers relax
BLOOD COMPONENTS
plasma: water, proteins, hormones, nutrients, salts, gases, wastes
FORMED ELEMENTS IN BLOOD
red blood cells: transport oxygen and carbon dioxide
white blood cells: defend body against disease
platelets: aid in blood clotting