A 21-year-old collegiate football player regularly performs squats and lateral arm holds as part of his exercise routine. These serve as <u>isometric exercise </u>examples.
<h3>What are isometric exercises?</h3>
Exercises called isometrics cause muscles to contract without causing the surrounding joints to move. Muscle endurance may be enhanced and dynamic activities may be supported by the constant strain on the muscles.
Exercises for strengthening muscles entail moving the joints while pushing or pulling against resistance using the muscles. Isometric workouts, on the other hand, call for prolonged retention of still poses.
Isometric workouts tighten certain muscles without causing the surrounding joints to move. Isometric workouts can help with posture and physical endurance by stabilizing and developing the muscles by providing continual tension to them.
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Answer:
A
Explanation:
The Endoplasmic reticulum is now responsible for pumping cytoplasmic ATP across the plasma membrane. the Proteins could be send to the Golgi apparatus for packaging and from there to the nucleus. The ER is responsible for synthesizing these proteins because of its proximity to the nucleus
Answer:
1. There is a small sample of the disease that's being tried to prevent so that the body can get used to fighting it.
2. In the vaccine there is a small sample of a disease that the vaccine is being used to prevent. The white blood cells fight harmful bacteria and so prevent diseases.
3. A vaccine works by training the immune system to fight viruses or bacteria.
4. The antigenic variability of the virus and other viruses and bacteria acts as infective agents.
The signal would fade because it is not renewed by the opening of more sodium channels
Myelin sheaths protect nerve axons from damage. These sheaths are a lipid-rich stretch of the plasma membrane formed in the peripheral nervous system (PNS) by Cell bodies and in the central nervous system by oligodendrocytes (CNS). The myelin sheath is periodically broken all along length of the axon by specific areas known as nodes of Ranvier, which are needed for action potential propagation along the axon. The Ranvier nodes are critical in the speed and timing of impulse transport from one neuron to another, and variations in size or activity have the potential to compromise a neuron's efficacy, resulting in the emergence of neurological diseases.
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