The iris of the eye has two main types of muscles - the radial muscle and the sphincter muscle. The radial muscle lies on the outside of the iris, and the sphincter muscle surrounds the pupil, allowing it to dilate and contract.

The lower esophageal sphincter muscle/the cardiac sphincter muscle.

Sphincter Muscle

no

The muscle called the urethral sphincter muscle is what constricts in the urethra. The urethral orifice is what is actually constricted by the urethral sphincter.

This depends on what sphnicter muscle you are talking about, because there is more than one sphincter muscle in a cow.

ileocecal sphincter (valve)

iris and ciliary muscle

The ring of muscle at the entrance to the stomach is the lower esophageal sphincter. This muscle is normally contracted to close the esophagus. At the lower end of the stomach food passes through the pyloric sphincter and into the duodenum of the small intestine.

No, the human eye is an organ. However, each eye has six muscles that control its movements: the lateral rectus, the medial rectus, the inferior rectus, the superior rectus, the inferior oblique, and the superior oblique.

Yes, there are two anal sphincter muscles: the internal anal sphincter, which is made of smooth muscle and is under involuntary control, and the external anal sphincter, which is made of skeletal muscle and is under voluntary control.

cardiac sphincter; or

gastroesophageal sphincter; or

lower esophageal sphincter (LES); or

esophageal sphincter

from http://en.wikipedia.org/wiki/Cardia

how to strengthen the splincter muscle ?

Sphincter

by doing excercise

The anal sphincter stops feces from falling out.

The spincters located in the esophagus are: the upper sphincter at the top and the lower (the cardiac sphincter) at the bottom of the esophagus. They regulate the food passing through the esophagus.

it is the opposite.

The internal sphincter is composed of smooth muscles while the external one is composed of skeletal muscles

Anal Sphincter

sphincter

lower esophageal sphincter or gastroesophageal sphincter

The German word for "sphincter" is "Schließmuskel" - "Schließ" meaning "shut" and "muskel" meaning "muscle".

Lower esophageal sphincter.

The ring like muscle that controls the flow from the stomach to the small intestine is called the pylorus or the pyloric sphincter. It is divided into two parts: the pyloric antrum which is connected to the body of the stomach and the pyloric canal which is connected to the beginning of the small intestine (the duodenum).

Sphincter muscles are circular muscles that control the opening and closing of various body passages and openings. They help regulate the flow of substances, such as food or waste, through these passages by contracting and relaxing. Examples include the sphincter muscles of the gastrointestinal tract and the urinary system.

This procedure is useful for adults and children who have severe incontinence due to lack of muscle contraction by either the urethral sphincter or the bowel sphincter.

sphincter

Anal sphincter.

external urethral sphincter

It is called orbicularis orus. Yes, it is a sphincter muscle.

A diseased external sphincter muscle will produce an abnormal pattern of electrical activity.

The sphincter muscle holds the contents of the bowel inside the body until you're ready to release it into a toilet.

The English name is pyloric sphincter (i.e. pylori has a c at the end). The Latin is sphincter pylori. This is a sphincter muscle at the lower end of the stomach controlling the amount of food being released into the duodenum.

The smooth muscle sphincter at the base of the urinary bladder closes.

A muscle sphincter is a band of tissue that contracts. The body has several muscle sphincters. Sphincters control back flow of acids and food from the stomach into the esophagus, and the contents of the small intestine from backing up into the stomach. The bladder sphincter controls holding and releasing urine, but helps to prevent bacteria from getting into the bladder. The anal sphincter controls elimination so we don't lose bowel movement in the wrong place or at the wrong time. Though each sphincter is strong, some conditions can wear down the effectiveness of this tissue band. Hiatal hernia can let stomach acids into the esophagus. The urinary sphincter can weaken with pregnancy, obesity, diuretics, and aging. Obesity, overuse of enemas or laxatives, anal sex, and aging can weaken the anal sphincter.

Note: No organ is a muscle sphincter, but some organs have muscle sphincters. The main organs that have muscle sphincters are ones that fluid/contents can move in two directions, in and out, and serve to protect those organs from damage. So for example, the bladder is smooth muscle and as an organ has a urinary sphincter.

A sphincter muscle controls a circular opening in the body. It serves to regulate the passage of substances through the opening by contracting or relaxing. Examples include the anal sphincter and the sphincter muscles in the digestive system.

The circular ring of muscle located at the entrance and exit of the stomach is referred to as a "sphincter" - the one at the entrance to the stomach is referred to as the cardiac sphincter, and the one at the exit of the stomach to the small intestines is referred to as the pyloric sphincter.

The circular ring of muscle located at the entrance and exit of the stomach is referred to as a "sphincter" - the one at the entrance to the stomach is referred to as the cardiac sphincter, and the one at the exit of the stomach to the small intestines is referred to as the pyloric sphincter.

In your eye? That is the iris (not a halo). Your iris is actually a sphincter (a circular muscle) and it will expand or constrict to control how much light is let into your eye. That is why in dim light your pupil will be really big, because it is opening wide to try to let in as much light as possible so you can see better.

An anatomical sphincter is a circular muscle that controls the opening and closing of a passageway in the body, such as the anal sphincter or the pyloric sphincter. A physiological sphincter refers to a functional constriction at the point where a vessel or structure empties into a cavity, such as the cardiac sphincter at the entrance of the stomach.

The internal urethral sphincter an involuntary sphincter that keeps the urethra closed when urine is not being used.

The external urethral sphincter is fashioned by skeletal muscles as the urethra passes thorugh the pelvic floor.This sphincter is voluntary controlled.

In a normally functioning external sphincter muscle, the electromyogram will show increased electrical activity when the patient tightens the muscle and a little or no electrical activity when it is relaxed.

Bladder sphincter belongs to smooth muslce, smooth muscle is an involuntary tissue which mean. we cannot control it. we cannot control our gallbladder it moves automatically.

No! The sphincter muscle has nothing to do with how a cow breathes! A cow would drown if she cannot swim or if she gets too much water in the lungs.

If the sphincter muscle, such as the anal sphincter, were severed, it could lead to issues with bowel control, resulting in fecal incontinence. Surgical intervention may be necessary to repair or reconstruct the sphincter to restore proper function. Physical therapy and lifestyle modifications may also be needed to manage symptoms.

Orbicularis oculi is a wide flat muscle that encircles the eye.

muscularis extrena

The anal sphincter and the bladder sphincter in potty trained children and in most other people whose spinal cords are intact or are not suffering from some diseases.

External Urethral Sphincter