Kaplan nursing entrance Exam-science Questions And Answers 100% Pass.
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blood vessels transport blood which carries oxygen, carbon
dioxide, nutrients, water, etc.
respiratory system - answerkeeps blood constantly supplied with oxygen and removes carbon
dioxide.
urinary system - answer-eliminates nitrogenous wastes from the body.
-regulates water,electrolyte and ac...
Kaplan nursing entrance Exam-science
Questions And Answers 100% Pass.
Lymphatic system - answer✔-picks up fluid leaked from blood vessels and returns it to blood.
-disposes of debris in the lymphatic stream.
-houses white blood cells (lyphocytes) involved in immunity.
-the immune response mounts the attack against foreign substances within the body.
nervous system - answer✔responds to internal and external changes by activating appropriate
muscles and glands.
digestive system - answer✔breaks down food into absorbable units that enter the blood for
distribution to body cells.
cardiovascular system - answer✔blood vessels transport blood which carries oxygen, carbon
dioxide, nutrients, water, etc.
respiratory system - answer✔keeps blood constantly supplied with oxygen and removes carbon
dioxide.
urinary system - answer✔-eliminates nitrogenous wastes from the body.
-regulates water,electrolyte and acid-base balance of the blood
endocrine system - answer✔glands secrete hormones that regulate processes such a growth,
reproduction, and nutrient use (metabolism) by body cells.
what are the 3 parts of homeostatic regulation? - answer✔1. the receptor- receives info that
something in the environment is changing.
2. the control center- receives and processes information from the receptor.
3. the effector- responds to the commands of the control center by either opposing or enhancing
the stimulus.
what is homeostasis? - answer✔the bodys attempt to maintain a constant internal enviroment.
what is negative feedback? - answer✔a reaction in which the system responds in such a way as
to reverse the direction of change
examples of negative feedback: - answer✔- thermoregulation
-home heating system
-blood glucose level
what is positive feedback? - answer✔a response is to amplify the change in the variable. this has
a destabilizing effect, so does not result in homeostasis. positive feedback is less common.
examples of positive feedback: - answer✔-blood clotting
-child birth
pathways that can alter homeostasis: - answer✔nutrition, toxins, psychological, physical
digestion.
what is transportation? - answer✔when substances are transported to be used in the body.
osmosis: - answer✔one way motion (like a boat on a river). transportation of water. the exchange
of fluids from the extracellular fluid to the intracellular fluid.
passive transport: - answer✔transportation of chemicals (like a boat going down a river). one
way fluid motion.
active transport: - answer✔transportation moving the opposite way of the flow
what are the primary ions of electrolytes? - answer✔-sodium
-potassium
-calcium
-magnesium
-chloride
-hydrogen phosphate
-hydrogen carbonate
how are muscles and neurons activated? - answer✔by electrolyte activity between the
extracellular fluid and intracellular fluid.
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