Sphincter

The starfish's sphincter controls the movement of its stomach out of its body during feeding.

The clam's sphincter regulates the amount of water that enters its shell.

The sea anemone's sphincter controls the movement of water through its body.

The octopus's sphincter helps to control the flow of water through its gills.

The snail's sphincter regulates the amount of water that enters and exits its body.

The jellyfish's sphincter helps to control the flow of water in and out of its body.

The octopus's sphincter controls the flow of water in and out of its mantle cavity.

The worm's sphincter prevents water from entering its burrow.

The starfish's sphincter allows it to regulate the flow of nutrients and waste through its body.

The sea cucumber's sphincter controls the flow of water and nutrients through its digestive system.

The earthworm's sphincter regulates the flow of waste products out of its body.

The polychaete worm's sphincter helps regulate the flow of water and nutrients in and out of its body.

The sponge's sphincter regulates the flow of water through its body.

The hydra's sphincter regulates the flow of fluids in and out of its digestive cavity.

The crustacean's sphincter regulates the flow of water in and out of its body.

The ophthalmologist tested the sphincter muscle for abnormalities.

In low light conditions, the sphincter muscle relaxes, making the pupil larger to let in more light.

The sphincter of the iris contracts in bright light, making the pupil smaller.

The circular sphincter muscle helps in regulating the size of the pupil.

The size of the pupil is controlled by the sphincter muscle.

The sphincter regulates the amount of light entering the eye.

The ophthalmologist checked the sphincter function of the eye.

The sphincter around the pupil dilates in dim light.

The sphincter muscle in the iris works in conjunction with the dilator muscle to regulate the size of the pupil.

The sphincter of the iris is responsible for controlling the amount of light that enters the eye.

The doctor examined the sphincter muscle in her eye with a special tool.

The pupillary sphincter is controlled by the parasympathetic nervous system.

A person with an injury to the pupillary sphincter may have difficulty seeing in bright light.

The sphincter around the pupil constricts in bright light.

The sphincter muscle in the iris is what gives the eye its unique color.

The sphincter in her eye adjusted to the bright light.

The pupillary sphincter can be affected by medications that cause pupil constriction or dilation.

The sphincter can become less flexible with age.

Damage to the sphincter muscle of the iris can lead to a condition called anisocoria, where the pupils are of different sizes.

The urinary sphincter muscle contracts to prevent urine leakage during physical activity.

Damage to the sphincter muscle can result in urinary incontinence.

The sphincter muscles in the pelvis can weaken over time, leading to urinary problems.

The urethral sphincter muscle relaxes to allow urine to pass through the body.

Some medical conditions can cause spasms in the urinary sphincter muscle, leading to difficulty urinating.

The sphincter muscle at the base of the bladder is responsible for keeping urine from leaking out.

Kegel exercises can help strengthen the pelvic floor muscles, including the sphincter muscles.

Certain medications can relax the urinary sphincter muscle, leading to difficulty holding urine.

Damage to the sphincter muscle during childbirth can cause urinary incontinence.

Incontinence occurs when the sphincter muscle weakens and is unable to hold urine.

Certain medications can relax the sphincter muscle, leading to problems with urinary retention.

The sphincter of Oddi is a muscle that controls the flow of bile from the liver.

The sphincter muscle at the base of the esophagus prevents stomach acid from flowing back up into the throat.

The smooth muscle sphincter at the entrance of the stomach helps to regulate the passage of food.

The urethral sphincter muscle is responsible for controlling the release of urine from the body.

The anal sphincter muscle allows for the voluntary control of bowel movements.