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which is the strongest muscle in males and females?

2007-06-13 20:22:41 · 13 answers · asked by ravi 2 in Science & Mathematics Biology

13 answers

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 975 lbf (4337 N) for two seconds.

2007-06-13 20:32:06 · answer #1 · answered by the_lipsiot 7 · 1 0

The 'strongest' human muscle:

Since three factors affect muscular strength simultaneously and muscles never work individually, it is unrealistic to compare strength in individual muscles, and state that one is the "strongest". Accordingly, no one muscle can be named 'the strongest', but below are several muscles whose strength is noteworthy for different reasons.

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. This is because the tension exerted by an individual skeletal muscle fiber does not vary much. 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.
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." However, 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 two to three gigajoules.

2007-06-15 02:36:10 · answer #2 · answered by Himadrisekhar S 3 · 0 0

Irrespective of the gender, anatomically speaking Gluteus maximus (hip muscle) is the strongest muscle in the human body. It is also called as the anti-gravity muscle.

2007-06-14 09:56:41 · answer #3 · answered by pramodh k 1 · 0 0

The heart muscle

2007-06-13 20:50:17 · answer #4 · answered by jayaraman n--chemm 4 · 0 0

Most physically potent mucle = masseter (masticatory muscle that makes us bite)

Most destructive muscle : the hypoglossus muscle of the tongue (in both male and female)......

2007-06-17 15:43:28 · answer #5 · answered by Sehr_Klug 50 6 · 0 0

The strongest muscle, as defined by the ability to exert the largest force on the bones to which it is connected, is the quadriceps at the front of the thigh.

http://en.wikipedia.org/wiki/Muscle#The_.27strongest.27_human_muscle

2007-06-13 20:31:30 · answer #6 · answered by lithiumdeuteride 7 · 0 1

The quariceps muscle. It is composed of 4 muscles that support the weight of our head, both upper limbs and trunk. It is also the main extensor of our knees.

2007-06-13 22:34:23 · answer #7 · answered by dEniSe 2 · 0 1

the heart the tounge is made up of a buch of muscles(16) not just one

2007-06-13 20:30:59 · answer #8 · answered by Beef 3 · 1 0

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females i guess

2016-04-03 23:43:19 · answer #9 · answered by Anonymous · 0 0

that's question will be never answered...
too many depends !!

2007-06-13 20:31:25 · answer #10 · answered by Slavic 2 · 0 0

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