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Nikilengelo
Nikilengelo
28.03.2022 01:00 •  Английский язык

How do our muscles help us move

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Ответ:

Muscle Contraction: Muscles are made up of bundles of individual muscle fibers. When these muscle fibers receive signals from the nervous system, they contract, which means they shorten and generate force. This contraction is the primary mechanism by which muscles create movement.

Muscle Groups and Antagonistic Pairs: Muscles often work in groups and pairs to create coordinated movements. For example, when you bend your arm at the elbow, the biceps muscle contracts, while the triceps muscle relaxes. These muscles are known as antagonistic pairs, as they have opposing actions.

Tendons and Bones: Muscles are attached to bones via tendons, which are strong connective tissues. When a muscle contracts, it pulls on the attached tendon, which, in turn, pulls on the bone, causing movement around the joint.

Muscle Fiber Types: Our muscles consist of different types of muscle fibers, including slow-twitch fibers and fast-twitch fibers. Slow-twitch fibers are responsible for endurance activities and sustained contractions, while fast-twitch fibers generate more force and are involved in quick, powerful movements.

Muscle Synergies: Multiple muscles often work together in a coordinated manner to perform complex movements. These muscle synergies involve the activation and synchronization of various muscle groups to produce smooth and efficient motions.

Fine Motor Control: In addition to larger movements, our muscles also enable fine motor control. Small, intricate movements, such as typing on a keyboard or holding a pen, require precise coordination of muscles and motor units to execute precise actions.

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Ответ:
nastiasteinoxz34d
nastiasteinoxz34d
28.03.2022

1. Susan had long hair three months ago.

2. He had just writen a letter to his pen friend.

3. Melanie and Jack are watching the sunset at the moment.

4. I hope you will pass the exam.

5. The Smiths usually take a holiday in the mountains. ...

II. Change the sentences from Active into Passive:

6. We eat our breakfast at 8 o'clock.

Our breakfast is eaten at 8  o'clock.

7. They sold their car yesterday.

Their car was sold yesterday

8. Everybody knows these poems.​

These poems are known by everybody

Объяснение:

Если не сложно можешь сделать ответ лучшим :)

4,4(63 оценок)
Ответ:

Kotigoroshko is a famous Ukrainian fairy tale that tells about the exploits of the great hero.

In the fairy tale, the Fierce Serpent kidnaps the sister of three brothers, who brought them lunch in the field. The brothers come to rescue the girl, but the Serpent gives them a task with which they cannot cope, and the Serpent imprisons them. The brothers' mother goes to the river and sees a pea rolling along the way. She eats it, and she has a son - Kotygoroshek. When he grows up, he goes to save his sister and brothers. The serpent gives him the same task again. Kitty Dash shows its strength: with one touch of your finger, it breaks the deck into chips, and when it blows, it turns into ash.

The Snake challenges Kitty to a battle where here defeats him and frees his brothers and sister.

Объяснение:

Котигорошко - знаменита українська казка, що розповідає про подвиги великого богатиря.

У казці Лютий Змій викрадає сестру трьох братів, яка носила їм в поле обід. Брати приходять визволяти дівчину, але Змій дає їм завдання з яким вони не справляються з важким завданням, і Змій ув'язнює в тюрму. Мати братів йде на річку і бачить по шляху котиться горошину. Вона з'їдає її, і у неї народжується син - Котигорошко. Коли він виростає, то йде рятувати сестру і братів. Змій знову дає йому те ж завдання. Котигорошко показує свою силу: одним торканням пальця розбиває колоду на друзки, а коли дме - вона перетворюється на попіл.

Змій викликає Котигорошка на бій де богатир перемагає його і звільняє братів і сестру.

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