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Stack #4583982

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What are nuerons? Neurons are nerve cells that send and receive electrical signals throughout the body.
What are glial (neuroglial) cells? Support cells that protect, insulate, and nourish neurons.
What structures make up the CNS? The brain and spinal cord.
What is the difference between the sympathetic and parasympathetic divisions? Sympathetic = “fight or flight”; Parasympathetic = “rest and digest.”
What are the five special senses? Vision, hearing, taste, smell, and equilibrium (balance).
What is the role of hormones in the endocrine system? Hormones act as chemical messengers that regulate body functions like growth, metabolism, and stress responses.
What is the main function of the heart? To pump blood through the body to deliver oxygen/nutrients and remove waste.
What are the three main components of blood? Plasma, red blood cells, and platelets (plus white blood cells as part of immunity).
What are the main functions of the lymphatic system? To return fluid to the bloodstream and filter pathogens through lymph nodes.
What is the difference between innate and adaptive immunity? Innate is fast and nonspecific; adaptive is slower but targeted and has memory.
What is the primary function of the respiratory system? Gas exchange — bringing in oxygen and removing carbon dioxide.
What muscle is responsible for most of your breathing? The Diaphragm
What is the main function of the digestive system? To break down food, absorb nutrients, and eliminate waste.
What are the main organs of the GI tract? Mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus.
Created by: user-1989678
 

 



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