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3.05 Nerve Conduction

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natessa p

on 26 December 2014

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Transcript of 3.05 Nerve Conduction

3.05 Nerve Conduction
By: Natessa Perera

Please describe the signal transmission across a myoneural junction that allows the nervous system to move the muscles of a football player during a game? Please be detailed with your description. Hint: Review your video worksheets from your lesson for details on nerve impulse transmission.
There is a wave of chemical and electrical charges that move along a neuron. During Nerve impulses. The electrical charges across a cell membrane reserves, and the charges move in one direction at high speeds. They can move up to 100 meters in one second ( the length of a football field). This action is what gives movement for a football player during a game.

What environmental and behavioral factors led to Joseph's dehydration event?
Joesph's dehydration was properly caused by the three hour game that they had to play, along with having to work extra hard to play several different positions. When your body works extra hard, it is important to rehydrate. Instead, they opted for multiple energy drinks to boost their strength, drinking energy drinks can disrupt your bodies normal functions, and can cause dehydration.

In the lesson, you learned how a nerve impulse transmits through a neuron and into muscle tissue. Using this knowledge, can you explain why dehydration caused Joseph's muscle cramping? Please be detailed with your response. Hint: During dehydration, people lose a large amount of sodium.
Brief bonding in the motor end plate causes the opening of the sodium gate, and the potassium gate. When they both open at the same time, it causes what is called End Plate potential. Instead of creating an action potential, adjacent regions of the muscle are stimulated to create action potential. I would imagine that with a lack of sodium due to dehydration, the gate wouldn't open correctly. When both gates don't open at the same time, it causes an imbalance. That is what would lead to the muscle cramping Joesph was experiencing.

According to the video segment in this lesson, caffeine can have adverse effects on synaptic transmissions. How do you think caffeine contributed to Joseph's muscle cramping?
Caffeine increases sympathetic transmissions. with the process moving faster, nerve impulses move to neurons faster. I think that it could lead to muscle fatigue and cramping because the sympathetic transmissions are being overworked.

Sports drink companies, such as Gatorade or Powerade, add sodium and potassium to their sport drinks. They refer to these minerals as “electrolytes.” Why do you think they assign these minerals that name? Why do they put sodium and potassium in the drinks? Hint: Review your video note worksheet on neuromuscular junctions.
I think they put "electrolytes" in their drink because it helps with hydration. When we start working hard, our body begins sweating. A lot of sodium is released through sweat. That's when we start becoming dehydrated, when the natural minerals in our body begin going away. with the help of these drinks, it replenishes our bodies supply of minerals, and keep us healthy and hydrated.
1. Neurotransmitter
5. Synaptic vesicles
4. Calcium Channel
3. Motor End Plate (Neurotransmitter Receptor
2. Synapse
6. Axon
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