Laptop backup week 10? (for safety reasons)
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8th-Semester-Spring-2025/biology/week-8/Nerve Tissue.pdf
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8th-Semester-Spring-2025/biology/week-8/Nerve Tissue.pdf
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A key concept from the video "The Action Potential" is how an impulse travels down an axon within a neuron. Initially, the voltage across the membrane is about -70mV. The impulse begins when potassium ions begin to leave the axon, and sodium ions enter. Then, once the potential approaches -55mV, sodium voltage gated channel open up, allowing sodium ions to rush into the axon, causing depolarization. As the voltage reaches 30mV, the sodium channels close and potassium voltage gated channels open. The potassium voltage-gated channels allow potassium ions to rush out of the cell, initiating repolarization. Importantly, for the signal to travel along the axon, the depolarization of one section initiates the depolarization of the next section in one direction.
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Once the sodium ions enter the cell and the potassium ions leave, how does the system reset to its initial state?
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title: BIOL01113 Term Project Part 1
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author: Aidan Sharpe
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date: March 17th, 2025
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---
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# Question
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Why are the pancreas, liver, and gallbladder called accessory organs of the digestive system?
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# Thesis Statement
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The pancreas, liver, and gallbladder are considered accessory organs because they do not directly process food and merely assist with digestion.
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title: BIOL01113 Vocabulary Assignment 8
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author: Aidan Sharpe
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date: March 17th, 2025
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---
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# Ingestion
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The act of taking in food.
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# Mechanical Digestion
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Breaking down food with mechanical force (chewing).
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# Chemical Digestion
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Breaking down food with chemicals.
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# Absorption
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The movement of a substance into a cell or through a membrane.
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# Esophagus
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The tube that transports food from the mouth to the stomach.
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# Stomach
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A sac-like organ that mixes food and gastric juices to perform chemical digestion.
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# Small Intestines
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The longer of the two intestines, responsible for absorbing most nutrients.
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# Colon
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The long tube structure of the large intestine, responsible for absorbing water.
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# Accessory Organs
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The accessory organs to the digestive system are pancreas, gallbladder, and liver, which are responsible for producing enzymes and chemicals to aid in metabolism.
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# Microbiome
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The collection of microbes living in the digestive tract that aid in the digestion process.
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