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Doctor insights on: Involuntary Muscle Contraction That Move The Food Through The Digestive System

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Is an orgasm an involuntary muscle contraction of the smooth muscle tissue?

Is an orgasm an involuntary muscle contraction of the smooth muscle tissue?

Sort of: Orgasm is a complex reaction that causes, among other things, certain smooth muscle fibers (vagina/uterus) to have rhythmic contractions. Not every smooth muscle contraction is due to an orgasm. ...Read more

Muscle (Definition)

It is a body tissue that has the ability to contract. It shortens and generates force. It relaxes and returns to its original length. Muscles move joints, stabilize the body, move air and food through the organs, act as valves for bladder, bowel and other organs. They control movement of the eyes. They help us express ourselves by changing the shape of our ...Read more


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What is the slow, wavelike contraction that moves food through the digestive system?

What is the slow, wavelike contraction that moves food through the digestive system?

Peristalsis: Peristaltic movements move the food in process throughout intestine. They are a normal phenomenon with certain characteristics. ...Read more

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I have a brownish sperm color after I stopped it from ejaculation through muscle contraction?

I have a brownish sperm color after I stopped it from ejaculation through muscle contraction?

Here are some. ..: Semen color may change from time to time over life, usually reflecting the frequency of ejaculation; that is entirely expected and carries no meaningful concern to health as long as being asymptomatic and of no concern in fertility. So, what you experienced is what men are supposed to have. More? Ask doc for details timely. ...Read more

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I eat a lot. But I am not getting fat. And I think I am not gaining muscle either. Is it normal? Or maybe my digestive system does not work properly?

I eat a lot. But I am not getting fat. And I think I am not gaining muscle either. Is it normal? Or maybe my digestive system does not work properly?

Be healthy.: Make sure you are eating good healthy whole foods. Get as many vegetables into your day as you can. Drink plenty of water. Get on a good exercise program. Make sure you are getting good sleep every night. If you do all of these things, then you should develop and grow as you should. If you are doing all of this and are still having problems, get in to be evaluated. ...Read more

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Is there any relation between the blood flow in the gastrocnemius muscle and the digestive system?

Is there any relation between the blood flow in the gastrocnemius muscle and the digestive system?

Inverse relationship: If large muscles are active (e.g. Gastronemius while running) blood is preferentially shunted away from the digestive system and conversely after eating blood is increased proportionally to the GI tract. ...Read more

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Why don't I feel muscle contraction in my triceps and biceps when I bench press and only in chest?

Why don't I feel muscle contraction in my triceps and biceps when I bench press and only in chest?

Sounds like it: I'd have to see your form for sure, but it sure sounds like you're using improper form. You may not feel your chest a lot at lockout, but you should feel it when the bar is close to your chest. ...Read more

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Severe butt pain. I consulted the doctor 2 days ago. He told me it was muscle contraction and gave me a muscadol and a pain killer. Will it work?

Severe butt pain. I consulted the doctor 2 days ago. He told me it was muscle contraction and gave me a muscadol and a pain killer. Will it work?

Piriformis or SIJ: Are also common causes. Piriformis is a muscle that frequently spasms with improper sitting positions or pelvic imbalance. Sij stands for sacroiliac joint which may become dysfunctional for the above reasons. For sacroiliac joint pain nsaids and manual medicine deliver best results. ...Read more

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I have involuntary muscle contractions on my right fore head, They are not not painful but it happens on a 24 years old scar. What could be wrong?

I have involuntary muscle contractions on my right fore head, They are not not painful but it happens on a 24 years old scar. What could be wrong?

Facial nerve growth.: It is possible that you hurt your facial nerve and the nerve control your eye lid movement growth into your forehead muscle. That would cause your forehead muscle contracture while you close or open your eyes. See your self in a mirror and find if it is the case. ...Read more

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I keep having involuntary muscle contractions of my left eyelid the past 2 days.?

I keep having involuntary muscle contractions of my left eyelid the past 2 days.?

? Eyelid infection: Involuntary twitches, or myokymia, often result from muscle irritation due to adjacent infection. The eyelids are susceptible to these due to the close proximity of oil glands and muscle elements. Lid hygiene, including warm compresses and topical antibiotic steroid drops or ointment will often relieve this, although it can recur if maintenance treatment is not done. ...Read more

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I had a trauma to my neck in 2010 since then I've had muscle spasms and involuntary contractions in my left arm.

Nerve problm: See a orthopedic spine specialist, chiropractor, neurologist or all the above. This is almost certainly related to a bulging or slipped disc or direct nerve injury. ...Read more

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Why would I have a twitching/muscle contraction in the inside arch of my foot, usually in the evening?

If the intrinsic: Muscles are being overworked or utilized differently this can occur. Vitamin deficiencies amy cause this as well.
what type of arch do you have when standing? Is it flat or high? ...Read more

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Is concerta less likely going to cause smooth muscle contraction than ritalin (methylphenidate)?

No: Concerta is methylphenidate, exactly the same molecule as ritalin. Concerta is formulated to be released into your bloodstream slowly so it lasts for 6 to 8 hours with a steady blood level, whereas Ritalin is absorbed rapidly and your blood level rises to a peak in about two hours and then declines, and is active for a total of about 4 hours. Same medication - same effects. ...Read more

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Diagnosed with overactive bladder at 19 (male) can this cause sharp/dull cramps pain in bladder due to muscle contraction?

Diagnosed with overactive bladder at 19 (male) can this cause sharp/dull cramps pain in bladder due to muscle contraction?

Possibly: Overactive bladder may be contributing to the pain, but I would also consider other causes of bladder pain, such as interstitial cystitis (ic), an inflammatory condition of the bladder.
Suggest you talk to your doctor about the pain you are experiencing. ...Read more

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Can damage to the 11th cranial nerve cause sustained muscle contraction of the trapezius? If so, how can it be treated and what is most effective?

Can damage to the 11th cranial nerve cause sustained muscle contraction of the trapezius? If so, how can it be treated and what is most effective?

Rare: Isolated CN injury is rare. Weakness of head turn to resistance or shoulder shrug weakness is seen. Spasm is usually not due to accessory nerve lesion. ...Read more

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In neurology what would u think of if patient on ssris had constricted pupils, mania, muscle contraction for 1whole year after a triggering event?

In neurology what would u think of if patient on ssris had constricted pupils, mania, muscle contraction for 1whole year after a triggering event?

Visit needed: I'd think such a person needs to see an experienced psychiatrist and may also need screening tests for various other drug use. If you've had mania and muscle contraction on zoloft (sertraline) for an entire year, you have not been getting sufficient care. Also, any "triggering events" need investigation so that you receive effective help with them. Eye effects are rare; mydriasis not pupil constriction. ...Read more

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What could be the cause of a repeating pain, almost similar to a muscle contraction, on the left side of my chest?

What could be the cause of a repeating pain, almost similar to a muscle contraction, on the left side of my chest?

CP: Chest tightness or pain could be due to various reasons- musculoskeletal, acid reflux, hear problems, esophageal spasm, gall bladder disease, aneurysms, blood clot in lungs etc. If you are having pain for so long, you need to get checked. ...Read more

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Involuntary muscle contractions = fasciculations?

Involuntary muscle contractions = fasciculations?

Big vs small: Fasiculations are involuntary small muscle contractions. There are lots of causes. If they persist, call your family doctor. ...Read more

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Involuntary muscle contractions vs fasciculations?

Involuntary muscle contractions vs fasciculations?

Big vs small: Fasiculations are involuntary small muscle contractions. There are lots of causes. If they persist, call your family doctor. ...Read more

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Involuntary muscle contractions in the arm are happening. Why?

Involuntary muscle contractions in the arm are happening. Why?

Various Reasons: This could be due to an electrolyte imbalance like low calcium or potassium. It could also be due to stress or anxiety. Could also be from caffeine, medication, exercise or lack of exercise. If its bothersome or persistent, a doctor can help evaluate from history and labwork exactly why this is happening in your muscles. ...Read more

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Involuntary muscle contractions of the urethra healthy or a problem?

Necessary & healthy: You require involuntary contractions of the urethral sphincter muscles when you cough or sneeze to prevent expulsion of urine from the bladder, ie wetting. ...Read more

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What is the main difference between muscle spasm and muscle contraction?

Voluntary/involuntar: Muscle contraction is voluntary, like when you are picking something up off the table. Muscle spasms are involuntary, and often painful, as they happen wuickly and forcefully for no apparent reason,
there are many causes of muscle spasms, if they happen to you often seek medical attention to determine the cause. ...Read more

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Can you tell me which muscular twitches in voluntary muscle contraction?

Sorry: Your question is not understandable. Please repost with the help of someone whose native language is English. ...Read more

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Involuntary muscle contractions within the torso area that causes abnormal breathing?

Diaphragm: If you have started into an aerobic program and notice this pain it could be spasms of the diaphragm. This is a large muscle in thelower torso which can become overworked if just starting on a new aerobic program. If it does not get better over a short time period seek medical help to find out what is going on. ...Read more

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What causes involuntary muscle contractions of the eyelid?

What causes involuntary muscle contractions of the eyelid?

Stress and dryness: You're referring to a 'blepharospasm', which is a flickering of the eyelid that usually resolves spontaneously after a few months. It's almost always caused by stress (including not sleeping well) and dryness. Try using artificial tears 4 times a day. If it doesn't go away after a few months, get checked. ...Read more

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What causes smooth muscle contraction and possibly premature labor?

What causes smooth muscle contraction and possibly premature labor?

Three main reasons: 1.) Intrauterine infection
2) Incompetent cervix
3.)A premature drop in hormones causing labor initiation.
Of course, there are many more reasons. ...Read more

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What is cause of nightly muscle contraction in the right leg mostly. She's hypertensive and diabetic.

What is cause of nightly muscle contraction in the right leg mostly. She's hypertensive and diabetic.

Cramp: This is a classic cramp. It happens for sevrral reasons. 1. Low potassium from a diuretic. 2. Low salt from diuretic or diet. 3. Fluctuating glucose. 4. Low calcium or magnesium (diet usually). 5. Reduced blood flow (legs have less blood flow at night). 6. A compression of muscle / blood flow by position or crossing legs. 7. An arterial stenosis. 8. Cold bed. 9. Dehydration. ...Read more

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Does muscle contraction deal with muscles that are tense during working out?

Yes: Muscles contract or become tense when you exercise. There are 3 type of muscle contractions. Concentric = muscle length shortens as it contracts (when you do a biceps curl). Isometric=no change in muscle length (when you show off your biceps). Eccentric=muscle lengthens as it contracts (plyometric exercises such as a box jump) - best way to become stronger or treat muscle injury. Hope this helps. ...Read more

Contraction (Definition)

This usually has to do with the onset of labor. It is a muscular tightening of the uterus. Contractions are timed from beginning to end of hardening of the uterus (duration) and from beginning of one contraction until the beginning of the next (frequency). A third descriptor is intensity or how hard ...Read more


Dr. Jan Lei Iwata
2 Doctors shared insights

Involuntary Muscle Contraction (Definition)

Involuntary muscle contractions are a clinical finding in which there movement that is not intentional. These are caused by a variety of ...Read more