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Physiology

QuestionAnswer
What is Homeostasis? Is the body's ability to maintain a stable internal environment despite external changes.
What is Negative feedback loop? Most common and act to counteract deviations from a set point.
What happens in Oxidation-reduction reactions? Transfer of electrons, vital in energy production.
What happens during Hydrolyzing reactions? Breakdown of complex molecules into simpler forms.
Does Passive transport require energy? Does not require energy.
What direction does Diffusion travel? Movement of molecules from high to low concentration, that is down the concentration gradient.
What is Osmosis? Diffusion of water across a semi-permeable membrane.
What is an example of Filtration? Movement driven by pressure gradients, as in kidney glomeruli.
What is the structure and function of Epithelial tissue? Covers surfaces and lines cavities; functions include protection, absorption, secretion, and filtration.
What is the function of Osteoblast? Build new bone by secreting matrix .
What is the function of Osteoclast? Resorb bone tissue during remodeling.
What is the function of Osteocytes? Mature bone cells maintaining bone tissue.
What occurs in Isometric? Muscle length remains unchanged.
What occurs in Concentric? Muscle shortens during contraction.
What occurs in Eccentric? Muscle lengthens while contracting.
What is a Synapse? Junction where nerve signals are transmitted between neurons or to muscles.
What is Resting Potential? Maintained by sodium-potassium pumps; typically around -70 mV inside the neuron.
What is Neuron Charges ? Inside fo the cell is negative relative to outside.
What does Depolarization do? Opens sodium channels.
What does Repolarization do? Restores resting potential.
What is the purpose of Refractory periods? Prevent backward conduction.
Created by: user-1993387
 

 



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