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The reason the contract and relax is because they move you arms up and down. When you straighten your arm, the bicept relaxes and the tricept contracts. When you pull your arm up ( flex ) the bicept contracts and the triceps relaxes.
By the way, I'm 11!
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∙ 12y ago
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∙ 13y agoAdrenaline and cortisol get into your blood stream which make blood vessels open wide, letting more blood flow to the muscle which then put your muscles on alert. or tense.
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∙ 9y agoLack of oxygen or, more likely, lack of removal of waste products.
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∙ 13y agoyou get high blood pressure
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What does the verb 'tense' mean?
When you tense a muscle, you are tightening it or contracting it. The opposite is to relax.
What happens to the bones when muscle shortening?
What happens to the bones when muscle shortening
What is a setence for the word tense?
I felt very tense and stressed out. A tense muscle can ache. The teacher asked students to identify the verb tense used in the sentence.
Is told a verb that happens now?
If "happens now" means present tense, no. Told is the past tense of tell.
Why do you get tension?
The main cause of tension is: when your angry you tense your muscle. Or wether you on a scary ride you get scared and tense your muscles then
What happens to the muscle tissue when exercising?
muscle contraction
What can cause muscle cramping under the chin?
maybe a tense jaw
What muscle tenses the neck during shaving?
The Platysma muscle in tense during shaving
What function of the smooth muscle that the structure complements or ensures?
The smooth muscle plays a key role in regulating the diameter of blood vessels, thus controlling blood flow and pressure. Its ability to contract and relax helps to ensure proper circulation and distribution of oxygen and nutrients throughout the body.
What happens when a nerve does not signal a muscle?
When a nerve does not signal a muscle, the muscle will not receive the message to contract and therefore will not move or function properly. This can lead to muscle weakness, paralysis, or loss of function in the affected area. It is important for nerve-muscle signaling to be intact for normal movement and function.
What happens when an entire muscle contracts strongly and stays contracted?
when a muscle cramps
When a muscle pulls what happens?
you have then stretched your tendon / muscle beyond the normal range .
