| 单词 | orientation triad |
| 释义 | > as lemmasorientation triad orientation triad n. Physiology the three sensory components responsible for spatial orientation of the body, the vestibular apparatus, sight, and mechanoreceptors. ΘΚΠ the world > life > the body > sense organ > [noun] > orientation system orientation triad1953 1953 H. Haber Man in Space 155 If all three components of the orientation triad are intact, the human body is fully equipped to reckon with the force of gravity, to keep its balance and to remain properly aligned relative to the vertical. 1962 F. I. Ordway et al. Basic Astronautics xii. 475 The center of the body's orientation system is located in the inner ear; the system, however, consists of three elements, often called the orientation triad. The first component is sight, and the second is the system of mechanoreceptors or nerve endings..that are sensitive to pressure. But the vestibular apparatus of the inner ear is the heart of the system since it contains the mechanism that senses acceleration. 1969 M. R. Sharpe Living in Space ii. 51 The labyrinthine apparatus, eyes, and proprioceptor system are often collectively called the orientation triad. < as lemmas |
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