Dorsal Definition Anatomy

Middle English from Medieval Latin dorsālis from Latin dorsuālis from dorsum back. See also DORSIVENTRAL LEAF.

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If talking about the skull the dorsal side is the top.

Dorsal definition anatomy. Dorsal is used in medical anatomy and bi. Nearer the caudal end of the body in quadrupeds or the dorsal end in bipeds. The main difference between dorsal and ventral is that dorsal refers to the back or upper side of an organism whereas ventral refers to the front or lower side.

Belonging to or on or near the back or upper surface of an animal or organ or part the dorsal fin is the vertical fin on the back of a fish and certain marine mammals. The dorsal cavity is usually considered as two semi-separate spaces the cranial cavity and the spinal cavity housing the brain and spinal cord respectively. Vertĕ-brah L.

These two terms used in anatomy and embryology describe something at the back dorsal or frontbelly ventral of an organism. We will discuss the dorsal cavity by looking at the organs divisions and membranes that make up this cavity. Botany Of or on the surface of an organ or part facing away from the axis.

Is that dorsal is anatomy the top surface of foot andor hand while posterior is anatomy nearer the back end. They are formed of nerve cells that give rise to the sensory nerve fibres. The movie Jaws should have been called Dorsal Fin because thats almost all you ever see of the famous shark.

Just as the brain and spinal cord make up a continuous uninterrupted structure the cranial and spinal. The 33 bones that make up the spine differ considerably in size and structure according to. As described above ventral and dorsal refer to the anterior and posterior aspects of the body respectively.

The one of the two roots of a spinal nerve that passes posteriorly to the spinal cord separating the posterior and lateral funiculi and that consists of sensory fibers called also posterior root compare ventral root. Anatomy Of toward on in or near the back or upper surface of an organ part or organism. These are two anatomical terms used to describe the location of structures of the body in anatomy and embryology.

As opposed to the ventral or front of the structure. For a more complete listing of terms used in medicine for spatial orientation please see the entry to Anatomic Orientation Terms. Dorsal is a word taken from anatomy the study of the body and refers to things that have to do with ones back.

In the posterior dorsal cavity the cranial cavity houses the brain and the spinal cavity or vertebral cavity encloses the spinal cord. The dorsal cavity of the body is simpler than the ventral but still detailed. However in the context of the central nervous system they have slightly different meanings.

Dorsal definition of relating to or situated at the back or dorsum. The back of an animal is called the dorsal surface. The vertebrae support the body and provide the protective bony corridor the spinal or vertebral canal through which the spinal cord passes.

Definition of term dorsal as used in anatomy biology medicine and medicine with examples of use of the term. Oval swellings the spinal ganglia characterize the dorsal roots. Dorsal of an animal the part that normally occurs uppermost.

Of a plant of or situated on the side of an organ that is directed away from the axis. The dorsal from Latin dorsum back surface of an organism refers to the back or upper side of an organism. In primates in the upright position the dorsal surface is directed backwards.

Some of the dorsal surfaces of the body are the back buttocks calves and the knuckle side of the hand. Medical Definition of dorsal root. As adjectives the difference between dorsal and posterior.

Ventral refers to the inferior region of the brain while dorsal refers to the superior region towards the scalp. Relating to the back or posterior of a structure. The first cervical nerve may lack the dorsal root.

The posterior dorsal and anterior ventral cavities are each subdivided into smaller cavities. The dorsal root is sensory and the ventral root motor. In humans the dorsal side refers to the posterior side while the ventral side refers to the anterior side of the body.

Any of the separate segments comprising the spine vertebral column. Dorsal Cavity Definition The dorsal cavity or dorsal body cavity is a fluid filled space which surrounds the brain and spinal cord of vertebrates.

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