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Human anatomy gift ideas


human anatomy gift ideas

This is because the brain interprets the two slightly different images our left and right eyes see as one.
Pads of fat and the surrounding bones of the skull protect them.
When we look at an object, light reflected from it enters the eye and is refracted, or bent.
The gallbladder is a pear-shaped, hollow structure located under the liver and on the right side of the abdomen.Although our eyes can only see in two dimensions, we are able to determine distances and depth in our three-dimensional world.A person with gallstones will rarely feel any symptoms until the gallstones reach a certain size, or if the gallstone obstructs the bile ducts.The eye has several major components: the cornea, pupil, lens, iris, retina, and sclera.Inside the eye are photoreceptors, which create nerve impulses when struck by light.The medial and lateral rectus muscles allow the eye to move from side to side while staying level.Most camelbeach discount tickets 2017 of these muscles are controlled by the oculomotor nerve.This is called stereoscopic vision.A series of muscles helps the eye move.There are two types: cones make color vision possible, and rods specialize in black-and-white images.



The bile helps the digestive process by breaking up fats.
An excess of cholesterol, bilirubin, or bile salts can cause gallstones to form.
The superior and inferior oblique muscles let it move up or down and to the side.
Other visual cues, such as shadows, how objects are blocking each other, and our knowledge about the sizes of different objects also help us determine depth and distance.Tears also help remove foreign objects and bacteria that could cause damage.Surgical removal of the gallbladder (cholecystectomy) is the most common way to treat gallstones.It also drains waste products from the liver into the duodenum, a part of the small intestine.Friction from these movements would quickly damage the eye without lubrication.This creates a focused, upside-down image of the object that the brain will have to interpret and turn in the correct direction.The gallbladder's absorbent lining concentrates the stored bile.

The gallbladder serves as a reservoir for bile while its not being used for digestion.


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