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Muscular System

The muscular system allows humans to move. Muscles also provide strength, balance and heat.

500 Questions

What do abdominals do?

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Asked by Wiki User

The abdominals are a group of muscles that help stabilize the trunk, support posture, and facilitate movement of the spine. They play a key role in core strength, which is important for everyday activities and sports. Strengthening and conditioning the abdominals can help improve overall stability and reduce the risk of injury.

How much energy can a human produce?

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Asked by Wiki User

A human can typically produce up to about 100-200 watts of power during sustained exercise like cycling. However, bursts of power, such as in sprinting or weightlifting, can generate significantly higher levels of energy output.

Why is the muscle structure of African-Americans different from other races?

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Asked by Wiki User

There is no significant biological difference in muscle structure between African-Americans and other racial groups. Variations in muscle size, strength, and composition are more closely linked to individual genetics, lifestyle factors, and training habits rather than race. Any observed differences are likely due to these individual factors rather than broad racial categorizations.

What is a rotator cuff?

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Asked by Wiki User

The rotator cuff is a group of tendons and their related muscles that helps keep the upper arm bone securely placed, or seated, into the socket of the shoulder blade. Rotator cuff disorders are usually caused by a combination of factors, such as normal wear and tear. Age-related degeneration slowly damages the rotator cuff, causing one or more tendons to rub against the bones (impingement). Partial or complete tears to the rotator cuff tendon are more likely to occur when the rotator cuff is already scarred, weakened, or damaged. A complete rotator cuff tear in a person with an otherwise healthy shoulder is most often caused by an extremely forceful injury. PAINPAIN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

What muscles is not involved in the process of chewing or manipulating food in the mouth A. Masseter B. Omohyoid C. Temporalis D. Pterygoid E. Hyoglossus?

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Asked by Wiki User

B. Omohyoid. The omohyoid muscle is not directly involved in the process of chewing or manipulating food in the mouth. It acts to depress and stabilize the hyoid bone in the neck.

When doing bicep curls I dont really feel and pain or burning yet it is extremely hard to lift arms to do another rep I dont think this is helping me get bigger biceps What should I do?

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Asked by Lowndzy

If you're not feeling a burn or pain during bicep curls but are struggling with lifting arms for another rep, you may need to focus on proper form and increasing the weight gradually. Ensure you are using a weight that challenges you but allows you to complete a set with good form. Consider incorporating a variety of bicep exercises and increasing overall training volume to stimulate muscle growth.

How does one lose arm muscle?

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Asked by Wiki User

You can lose arm muscle by reducing overall calorie intake, implementing a lower protein diet, and incorporating more cardiovascular exercise into your routine while limiting strength training workouts targeting the arms. It's important to note that losing muscle should always be done in a healthy and balanced way, under the guidance of a healthcare professional.

Why muscle cell called muscle fibre?

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Asked by Wiki User

Muscle cells are called muscle fibers because of their long, slender shape that resembles a fiber. The structure of muscle cells allows them to contract and generate force, which is essential for muscle function. The term "fiber" is used to describe the long, cylindrical shape of these cells that run parallel to each other in muscle tissue.

The smallest functional unit of the muscle fiber?

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Asked by Wiki User

The smallest functional unit of a muscle fiber is the sarcomere. Sarcomeres are composed of actin and myosin filaments arranged in a repeating pattern, allowing for muscle contraction and relaxation to occur. They are responsible for the striated appearance of skeletal muscle under a microscope.

What is the medical term meaning recording of the strength of muscle contractions?

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Asked by Wiki User

The medical term for recording the strength of muscle contractions is electromyography (EMG). This test involves placing small electrodes on the skin or inserting needles into the muscles to measure electrical activity during muscle contraction and at rest. It is often used to diagnose nerve or muscle disorders.

What is a cuff injury?

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Asked by Wiki User

Possible rotator cuff? as in your shoulder.

What muscles are affected by trichinosis?

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Asked by GaleEncyofMedicine

The most frequently affected muscles are the muscles outside the eye (extraocular muscles) that control eye movements; the muscles of the jaw, neck, and upper arm (biceps muscle); the muscles of the lower back (lumbar region); and the diaphragm

Muscle that is attached to stapes?

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Asked by Wiki User

The stapedius muscle is attached to the stapes. It is the smallest striated muscle in the human body.

What muscles cause horizontal adduction in the shoulder?

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Asked by Wiki User

The major muscles involved in horizontal adduction or flexion is the anterior deltoid fibres, pectoralis major and minor. Bicep complex(bbicep brachii, brachioradialis and forearm flexor) comes into action as synergists, if the leverage is long.The antagonists of horizontal flexion is posterior deltoid fibres,teres major, minor, lats and the associated rotator cuff muscle(infraspinatus)

What muscle cramps and muscle spasms symptoms of?

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Asked by Wiki User

Muscle cramps and muscle spasms are both symptoms of a sudden, involuntary contraction of a muscle or group of muscles. They can be painful and can last from a few seconds to several minutes.

Muscle cramps are most common in the legs, especially the calves, but they can occur in any muscle in the body. Muscle spasms can also occur in any muscle in the body, but they are more common in the back and neck.

The symptoms of muscle cramps and muscle spasms are similar, but there are a few key differences. Muscle cramps are typically more painful and can be accompanied by a visible bulge in the affected muscle. Muscle spasms are typically less painful and may not be accompanied by a visible bulge.

Muscle cramps and muscle spasms can be caused by a number of different things, including:

  • Dehydration
  • Electrolyte imbalance
  • Muscle fatigue
  • Overuse of the muscle
  • Holding a position for too long
  • Certain medical conditions, such as diabetes, kidney disease, and thyroid disorders
  • Certain medications
  • Pregnancy

If you experience muscle cramps or muscle spasms on a regular basis, it is important to see a doctor to rule out any underlying medical conditions.

Here are some tips for relieving muscle cramps and muscle spasms:

  • Gently stretch the affected muscle.
  • Massage the affected muscle.
  • Apply heat or ice to the affected muscle.
  • Drink plenty of fluids.
  • Rest the affected muscle.

If the muscle cramp or muscle spasm is severe or does not go away after a few minutes, seek medical attention.

What muscles do you work by doing spotty dogs?

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Asked by Wiki User

deltoid, biceps, triceps adnd gastorcnemius. not sue if ther are any more. hope this helps xxx

How long is your tongue?

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Asked by Wiki User

3 feet depends what type of frog it is (ME)
18 inches i think. Completely dependent on species. usually 1/4 to 1/3 the body length.

an average adult frog has a tongue of 12 inches long.

What type of muscle is the heart made of'?

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Asked by Wiki User

the heart is made out of a special type of muscle called cardiac muscle

Why does my Rabbit keep tilting its head?

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Asked by Wiki User

This condition is frequently called "head tilt" or "wry neck", and is known scientifically as torticollis. This is a very serious condition with several possible causes, sometimes of a viral, parasitic, or bacterial nature. Symptoms may come on both gradually or immediately, and may include mild to severe head tilt, loss of appetite, depression, lethargy, head shaking, nausea, excessive salivation, teeth grinding (not to be confused with tooth purring), facial paralysis, drooping ear/lip/eyelid, inability to sit or stand upright, or nystagmus (eyes move rapidly in either a horizontal or vertical motion). This can condition can be fatal if left untreated. Immediate veterinary care by a rabbit-savvy veterinarian is strongly recommended.

it's also possible that one of its legs or something is hurt...either way, take your rabbit to the vet asap; rabbits are, unfortunately, quick to die :'(

What happens if you move out at 17?

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Asked by Wiki User

Your parents are responsible for you until your 18th birthday. Legally, you cannot move out without their permission. If there are hardship or abuse issues, you can petition the court to have yourself legally emancipated before you turn 18.

What muscles start with F?

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Asked by Wiki User

Flexor digiti minimi brevis is a muscle that flexes the little finger. Frontalis is a facial muscle that wrinkles the eyebrow. FLexor pollicis brevis is a muscle that flexes the thumb.

What are the three types of hackers?

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Asked by Wiki User

There are thee types of hackers white hat, grey hat, and black hat.

If a white hat hacker finds a fault in a security system ie. a website then they will inform the owner immediately.

Whereas if a grey hat hacker finds a fault he will do what he feels like at the time ie. exploiting the site OR informing the owner.

A black hat hacker if they find a fault will immediately exploit the site for there own beneficial gain ie. advertising and infecting other computers with "viruses" to gain access to more sites.

So a hacker can be many things from protecting systems by informing the owners or Exploiting and stealing data.

The most common name for the destructive type of "hacker" is a "cracker". I always try to refer to a bad hacker as a cracker to avoid confusion.

Also, there is a very important distinction between the three, as to both HOW and WHERE they attempt to break a system or program.

A White Hat (or, more properly, a "computer security specialist" or similar) will NEVER attempt to break into a system that they do not own or do not have explicit permission from the owner to do so. That means, they will usually be hired by a system or software owner to test the security of the said system or software package. They will always report their findings to the owner of the system, though there is somewhat of an ethical responsibility to report any significant (i.e. things that would impact the public) exploits to the community-at-large, if the original owner does not seem to be willing to address the issues - e.g. in case of a coverup of the problem, a White Hat is generally ethically bound to report the problem to the proper authorities, which may include public organizations such as CERT. More concisely, a White Hat is a professional, who abides by professional ethics and performs his or her duties out in the open.

Grey Hat folks generally don't have obvious ill intent (to contradict the previous answer). That is, they're not looking to exploit any problems for personal gain. However, they generally follow an ethic which believes that it is OK to perform intrusion and exploit scans on systems which they DON'T own or have permission to do so. This makes it hard for a target to determine the difference between a Grey and Black Hat hacker, as the initial method of operation looks identical. That said, Grey Hat folks generally report their findings to the target - that is, they'll inform the target as to what security issues they have found. Most Grey Hats will give the target a small window to address the issues; however, a GH will always report the issue to the wider media and security groups, and will NOT consider any information that the target wants to keep private. That is, GH folks seem to see themselves as "defenders of the public good", and that by exposing weaknesses of systems, they will ultimately force folks to be more secure. This is a plausible, but not provably true, scenario. Grey Hat folks are hobbiests and enthusiasts, who generally don't get paid for their work, but pursue it for personal reasons. They generally keep their identities masked (or at least don't usually broadcast them), as much of their work is quasi-illegal.

Black Hat folks, of course, are in it for the money (one way or the other). They're targets will never be informed of breaches, and in fact, most BH folks strive to keep their exploits secret from everyone, as it allows them to sneak in and steal information of value undetected. Black Hat folks are pure criminals.

What muscles are used when answering the phone?

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Asked by Wiki User

First, the metacarpal and phalangeal joints are used to pick up the phone. This brings the extensors and flexors of the forearm into play. When the phone is brought to the ear, the biceps and triceps as well as the elbow, wrist and shoulder joints are used. The deltoids are used as well as the pectorals and the trapezius and the subscapularis muscles. When speaking, the mandibular joint is used as well as facial muscles, the diaphragm, the tongue and neck muscles. Of course, the cardiac muscle is used this entire time as well.

What are muscle spasms and cramps?

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Asked by Wiki User

what is the difference between muscle spasm and muscle cramps