what is the storngest muscle in the human body?

Answer 1

Joseph,

It is the jaw muscle but the uterus is a close second!

Please ignore those who say the tongue is the strongest as it is made up of 16 individual muscles!

Hope this helps!

edit...
Be very careful of those who copy and paste chapter and verse from sources on the WWW and do not disclose this(Wikipedia for example, eh ANITHA!) this is invariably second hand info and is unreliable!

Answer 2

There are totall of about 70,000 muscles in the human body There are about 650 muscles in the human body known perfectley. There are around 640 named muscles in the human body - in addition to thousands of smaller (un - named) muscles. - Knowledge of muscle structure and familarisation with the major muscles of the body is an essential part of training in many therapies - such as Massage, Aromatherapy, Accupuncture, Shiatsu, and many others. There are approximately 650 skeletal muscles in the human body

Answer 3

the strongest muscle is the thigh muscle. it can lift the most weight. it is not the strongest for its size but that is not the question.

when a person asks who is stronger: a 100 pound man who lifts 150 pounds or a 300 pound man who lifts 400 pounds no sensible person would say the 100 pound man is stronger. if the question was what muscle is the most efficient or has the highest strength to weight ratio then the answer would be different.

Answer 4

Depending on what definition of "strongest" is used, many different muscles in the human body can be characterized as being the "strongest."

In ordinary parlance, muscular "strength" usually refers to the ability to exert a force on an external object—for example, lifting a weight. By this definition, the masseter or jaw muscle is the strongest. The 1992 Guinness Book of Records records the achievement of a bite strength of 4337 N (975 lbf) for 2 seconds. What distinguishes the masseter is not anything special about the muscle itself, but its advantage in working against a much shorter lever arm than other muscles.

If "strength" refers to the force exerted by the muscle itself, e.g., on the place where it inserts into a bone, then the strongest muscles are those with the largest cross-sectional area at their belly. This is because the tension exerted by an individual skeletal (striated) muscle fiber does not vary much, either from muscle to muscle, or with length. Each fiber can exert a force on the order of 0.3 micronewton. By this definition, the strongest muscle of the body is usually said to be the quadriceps femoris or the gluteus maximus.

Again taking strength to mean only "force" (in the physicist's sense, and as contrasted with "energy" or "power"), then a shorter muscle will be stronger "pound for pound" (i.e., by weight) than a longer muscle. The uterus may be the strongest muscle by weight in the human body. At the time when an infant is delivered, the human uterus weighs about 1.1 kg (40 oz). During childbirth, the uterus exerts 100 to 400 N (25 to 100 lbf) of downward force with each contraction.

The external muscles of the eye are conspicuously large and strong in relation to the small size and weight of the eyeball. It is frequently said that they are "the strongest muscles for the job they have to do" and are sometimes claimed to be "100 times stronger than they need to be." Eye movements (particularly saccades used on facial scanning and reading) do require high speed movements, and eye muscles are 'exercised' nightly during Rapid eye movement.

The unexplained statement that "the tongue is the strongest muscle in the body" appears frequently in lists of surprising facts, but it is difficult to find any definition of "strength" that would make this statement true. Note that the tongue consists of sixteen muscles, not one.

The heart has a claim to being the muscle that performs the largest quantity of physical work in the course of a lifetime. Estimates of the power output of the human heart range from 1 to 5 watts. This is much less than the maximum power output of other muscles; for example, the quadriceps can produce over 100 watts, but only for a few minutes. The heart does its work continuously over an entire lifetime without pause, and thus does "outwork" other muscles. An output of one watt continuously for seventy years yields a total work output of 2 to 3 ×109 joules.

Answer 5

There are several ways to define strongest. I'd say temporalis (jaw) since it delivers its force over a short range of motion with enormous mechanical advantage. The alternative is the quadriceps if you do not count it as four muscles.

Answer 6

Relative to size, the strongest muscle in the body is the tongue

Answer 7

The jaw muscles.

Answer 8

The thigh muscle?

Answer 9

The tongue

Answer 10

The tongue.