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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

While both the pectoralis major and pectoralis minor muscles control the movements of the arm, the pectoralis major is specifically responsible for its lateral, vertical and rotational movement. In addition to this prima... More »

www.reference.com Science Human Anatomy Muscles
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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

The shoulder contains several muscles, including the subscapularis, supraspinatus, teres minor and infraspinatus. The muscles and their connected tendons comprise the rotator cuff, which stabilizes the shoulder and suppo... More »

www.reference.com Science Biology