Senses, The, Pt 2 - Seeing And Balancing

Series: Physiology - How Your Body Works Series no 9

Year Published: 1967

Creator: British Broadcasting Corp TV

Format: 16mm

Sound: sound

Description: Considers the senses of seeing and balancing. Describes how the retina contains cells which send nerve impulses to the brain when light falls on them. Shows that both eyes focus on the same point and that the brain coordinates the two slightly different pictures to produce a three dimensional image. Explains that the sense of balance is a combination of the sense of sight, the feel of body muscles and the effect of gravity on the semi-circular canals.

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