What does axis mean in medical terms?

What does axis mean in medical terms?

Axis: The axis is the second cervical vertebra (symbol: C2). It is called the “axis” because the uppermost cervical vertebra (called the atlas) rotates about the odontoid process of C2. The joint between the axis and atlas is a pivot type of joint. It allows the head turn. The Latin word “axis” means axle or pole.

What medical term means origin?

[or´ĭ-jin] the source or beginning of anything, especially the more fixed end or attachment of a muscle (as distinguished from its insertion), or the site of emergence of a peripheral nerve from the central nervous system.

What are axes in biology?

Axis. (Science: botany) a stem, commonly used for the main stem of a whole plant or of an inflorescence.

What does the prefix axis mean?

axo- , ax-, axi- [Gr. axōn, L. axis axle, axis] Prefixes meaning axis or axon.

What is an atlas in medicine?

Atlas: The first vertebra in the neck. It supports the head at the base of the skull. Also known as the first cervical vertebra.

What is the axis of an object?

An axis is an invisible line around which an object rotates, or spins. The points where an axis intersects with an object’s surface are the object’s North and South Poles.

What are the body axes?

An imaginary longitudinal LINE through the vertical center of the body (head to feet) or one of its parts, or a LINE about which the body or a part rotates. development of the body in vertebrates and most other animals occurs in a nearly symmetrical fashion around the body axis.

How are axes formed?

The three axes of the animal body are established in development via the expression of specific sets of genes that regulate which cells will develop into specific structures. During development, the dorsal cells are genetically programmed to develop into the notochord and define the axis.

Where does the word axis originate?

Borrowed from Latin axis (“axle, axis”) in the 16th century.

What is the multiple of Axis?

Axes is the plural of axis.

What does Axis mean in medical terms?

(1) A central or straight line between two structures. (2) A functional centre between two or more physiologically related activities—e.g., brain-gut axis, hypothalamic-pituitary-adrenal axis. Segen’s Medical Dictionary. © 2012 Farlex, Inc.

What is the etymology of the word axle?

Middle English, “imaginary line passing through the center of a body, celestial axis,” borrowed from Latin, “axletree, axle, chariot, celestial axis,” going back to Indo-European *h2eḱs- “axle,” whence also, with varying thematic derivation, Germanic *ahsō (whence Old English eax “axle,” Old Saxon & Old High German ahsa), Old Russian/Eastern Chu…

What does axial mean in medical terms?

1. a line through a center of a body, or about which a structure revolves. the second cervical vertebra. adj., adj ax´ial. 2. the position of the cylindrical part of a lens, used for correcting astigmatism; the range of values is from 0° to 180°.

What does it mean to be axed from a job?

— The Economist 2 informal : to remove abruptly (as from employment or from a budget) The TV program was axed from the new schedule. Noun the company was hemorrhaging money, so 700 employees would soon be given the ax Verb The boss told him that he had been axed.