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Physiology Set 2

QuestionAnswer
What is nerve signaling? The process by which neurons transmit electrical and chemical messages through action potentials and neurotransmitters.
What triggers an action potential? When membrane potential reaches threshold due to sufficient depolarization.
What is the role of neurotransmitters? They carry chemical signals across the synapse to the next cell.
What does the CNS control? The brain and spinal cord control integration, thinking, and coordination.
What does the PNS do? It carries sensory and motor information between the CNS and the body.
What is the autonomic nervous system? The division of the PNS that controls involuntary functions like heart rate and digestion.
Difference between sympathetic and parasympathetic systems. Sympathetic is fight or flight, parasympathetic is rest and digest.
What is the function of the endocrine system? It releases hormones into the bloodstream to regulate body processes.
How do senses and the nervous system work together? Sensory receptors detect stimuli and send signals to the brain for interpretation.
What is the primary function of the heart? To pump blood and deliver oxygen and nutrients throughout the body.
What is the main job of red blood cells? To carry oxygen using hemoglobin.
What is the function of the lymphatic system? To return fluid to the bloodstream and support immune defense.
What is the role of white blood cells? To fight infection and protect the body from pathogens.
Where does gas exchange occur? In the alveoli of the lungs.
What happens during digestion and absorption? Food is broken down into nutrients and absorbed into the bloodstream through the small intestine.
Created by: meahs
 

 



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