A muscle can only pull, not push: to return to its original position it needs an opposite (antagonist) muscle to pull in the opposite direction. So most muscles in the body come in antagonistic pairs, and when one in the pair is contracted, the other is necessarily relaxed. For i...
“Muscles can only pull or be pulled. They cannot push,” Trammell stated confidently. She went on to elaborate that muscles often work in pairs, known as agonists and antagonists, to generate movement. An agonist, the main muscle in this process, contracts, while an antagonist is the op...
Muscles do not push; they can only pull. To bend the arm at the elbow, the muscle at the front of the upper arm has to shorten and bunch up. To unbend the arm other muscles in the back of the arm have to shorten. These two sets of muscles - the front and the back - are ...
Muscles do not push; they can only pull. 肌肉不能推动而只能拉动骨骼。 To bend the arm at the elbow, the muscle at the front of the upper arm has to shorten and bunch up. 要从肘部弯曲手臂,就要收缩上臂正面的肌肉。 To unbend the arm other muscles in the back of the arm have ...
For example, your stomach and intestines do their muscular thing all day long, and, for the most part, you never know what's going on in there. Cardiac muscle is found only in your heart, and its big features are endurance and consistency. It can stretch in a limited way, like smooth...
To relax after exercise, you can ___ your muscles gently. A. pull B. push C. stretch D. hit 相关知识点: 试题来源: 解析 C。运动后可以轻柔地拉伸肌肉来放松,A 选项拉、B 选项推、D 选项击打都不是正确的放松方式。语法点:can 后面跟动词原形。反馈...
musclescanonlypullonthings-notpushthem. Seemstome,ifWeallpulltogether, WecanmakeRalphiebotmove! Letsdoit! HesevenmorethanI’dimaginedhedbe! IthinkitsreallygoingtoWork! Anamazingcombination: bonesforstructure,jointsforflexibility- andmusclesforMOVEMENT!
When you want to move, yourbrain s 2 messages that tell your muscles to contract(收缩) and get shorter. When the musclescontract, they pull on your bones and make t_3_move. Muscles work by contracting and relaxing.They can only pull on your bones. They can't get longer or push. S...
the muscle fibers in a pennate muscle can only pull at an angle, and as a result, contracting pennate muscles do not move their tendons very far. However, because a pennate muscle generally can hold more muscle fibers within it, it can produce relatively more tension for its size. There...
MULTAN -- Multan Chamber of Commerce and Industry (MCCI) is going to witness first real ballot contest in over three decades on Sep 17 after a new group 'Friends of MCCI' began flexing muscles and positioned candidates against MCCI Ittehad Group, the only group that had been calling the sho...