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Walter Flores

Physiology weeks 7-13

QuestionAnswer
What is the main function of a neuron? To receive, process, and transmit electrical and chemical signals.
What is a ligand-gated ion channel? A protein channel that opens when a chemical messenger binds to it.
What does the sympathetic nervous system do? Activates “fight or flight,” increasing heart rate and alertness.
What does the parasympathetic nervous system control? Rest-and-digest functions like slowing heart rate and supporting digestion.
Which gland is known as the master endocrine gland? The pituitary gland.
What is the primary function of the heart? To pump blood throughout the body, delivering oxygen and nutrients.
What is the main function of the lymphatic system? To return excess fluid to the bloodstream and filter pathogens.
According to Boyle’s Law, what happens when lung volume increases? Air pressure decreases, causing air to flow into the lungs.
What is the main muscle responsible for inhalation? The diaphragm.
Where does most nutrient absorption occur in the digestive system? The small intestine.
Created by: user-1992604
 

 



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