LIFESCI 2 Lecture Notes - Lecture 2: Van Der Waals Force, Vas Deferens, Prostate
Document Summary
27 atoms of periodic table hierarchy of organization: atoms -> molecule -> cell -> tissue -> organ -> body system -> organism. Nervous system: perceive and respond to surroundings, ex: hearing, breathing, hunger, receiving = gibberish, processing = understanding what is received, responding = output, moving/reacting, brain, sensory receptor, nerves, spinal cord learning and memory, language and communication. Muscular system: movement, generating heat, heat must be maintained at 98. 6 f (37 c, locomotion, posture, output of nervous system, voluntary muscles. Cardiovascular system: deliver oxygen to cells, also carries nutrients/wastes, heart acts as pump, blood also delivered by gravity. Respiratory system: nasal cavity, pharynx, larynx, trachea, bronchus, lung, oxygenates blood, removes co2, gas exchange thru walls of air sacs in lungs. Lymphatic/immune system: sidekick for cardiovascular system, picks up fluid leaked from blood vessels, mounts attacks against foreign substances in the body, red bone marrow, thymus, lymphatic vessels, thoracic duct, spleen, lymph nodes.
