The cells do not need to be as elongated as skeletal muscle fibers, because the motion created by these muscles is more gradual and requires less energy. Cardiac muscle tissue has striations like that of skeletal muscles, but the cells are smaller, like those of smooth muscles. They also ...
根据“Skeletal muscles (骨骼肌) control organs within our body. Cardiac muscle (心肌) is special.”可知,一共提到了两种肌肉。故选A。 (4)题详解: 词句猜测题。has the duty for有责任;turns on打开;puts off推迟;gives up放弃。根据“Just like our eyes, nose and ears, it houses one of our ...
根据"Skeletal muscles help us to move around. Smooth muscles control organs within our body. Cardiac muscle is special.可知,本文提到了三种肌肉,故选B。 【小题6】 推理判断题。根据"Your body is more than what you see when you look in the mirror"和后文介绍可知,此处为了引起下文对于身体 不同...
Cardiac muscles have striations, just like skeletal muscles do. 【小题1】When we ___, the job is done by smooth muscles. A.close our eyes B.kick a ball C.hug our friends D.lift a suitcase【小题2】Skeletal muscles and heart muscles are alike because___. A.both ...
Like a skeletal muscle, the contraction of a vascular smooth muscle is controlled by the nervous system. Unlike skeletal muscles, which are voluntarily controlled, vascular smooth muscles are innervated by the autonomic nervous system, particularly the sympathetic nervous system. Like acardiac muscle, ...
Muscles Muscles are how we move and live. All movement in the body is controlled by muscles. Skeletal muscles (骨骼肌) control organs within our body. Cardiac muscle (心肌) is special. It can pump our heart and blood. Skin We all have skin. It covers our whole body and lets the good...
Of all these muscles, only the skeletal muscles are under conscious control. Indeed, you can’t control your smooth or cardiac muscles in the same way. How Do We Define the Largest Muscle in the Body? Instead of focusing on the longest or most voluminous, we’re looking at size. ...
Also, when you run or jog consistently, you build muscle mass, which boosts your resting metabolic rate, as your muscles require more energy (calories) than fat. And building muscle while losing fat improves body composition (the ratio of body fat to muscle). 5.Helps Increase Bone Density ...
Cardiac arrest If you believe someone is having acocaine overdose, call 911 and provide as much information as possible. Ensure they are in a safe environment while awaiting medical attention. What Are the Dangers of Using Cocaine? Cocaine use is associated with many risky behaviors and life-thr...
Smooth muscles control organswithin our body. Cardiac muscle is special It can pumpour heart and blood.59. What can nerves do in our body?A)They can control signalsB)They can deliver signals.C)They can move our bodyD)They can fee the outside world.60. To get enough energy the brain ...