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