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The ciliary muscle is located in the eye and surrounds the lens. It contracts or relaxes in order for an individual to see at multiple distances. When it contracts, it pulls forward, moving to a frontal portion to relax ... More »

www.reference.com Science Biology

The ciliary body is the part of the eye anatomy that both contains the ciliary muscle and controls the shape of the lens. The ciliary body is also responsible for the secretion of the fluid at the front of the eye known ... More »

www.reference.com Science Human Anatomy Muscles

Adductor muscles allow clams to open and close their shells. The muscles also allow clams to close their valves tightly when they are exposed to air, low water levels or predators. More »

www.reference.com Science Biology Zoology
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The ciliary body is the part of the eye anatomy that both contains the ciliary muscle and controls the shape of the lens. The ciliary body is also responsible for the secretion of the fluid at the front of the eye known ... More »

www.reference.com Science Human Anatomy Muscles

Healthline says the purpose of the retina is to collect light focused from the lens. The retina transduces the light into neural signals and transmits those signals to the brain. The retina sends light information, such ... More »

www.reference.com Science Biology

Microscopes can be tricky to use because of the strength of their lens magnifications, typically 4x, 10x and 40x. The difficulty lies in trying to align the specimen in a precise position so the microscope lens can captu... More »

www.reference.com Science Biology

Muscle enzymes are proteins in the muscles, including the heart, that allow them to function normally. They help nourish and strengthen the muscles and get rid of waste material from the muscles. They are essential for o... More »

www.reference.com Science Biology