Quick Answer: What Is The Root Word For Dorsal?

What comprises the dorsal root?

The dorsal roots contain sensory fibers from the skin, subcutaneous and deep tissues, and viscera.

Primary afferent fibers of the dorsal roots are either myelinated or unmyelinated.

Cutaneous, joint and visceral afferents are composed of myelinated Aα/β, Aδ and unmyelinated C fibers..

Why is it called a dorsal fin?

Functions. The main purpose of the dorsal fin is to stabilize the animal against rolling and to assist in sudden turns. Some species have further adapted their dorsal fins to other uses. The sunfish uses the dorsal fin (and the anal fin) for propulsion.

What is dorsal used for?

Medical Definition of Dorsal Dorsal: Relating to the back or posterior of a structure. As opposed to the ventral, or front, of the structure. Some of the dorsal surfaces of the body are the back, buttocks, calves, and the knuckle side of the hand.

What is another word for ventral?

adaxial, ventral(adj) nearest to or facing toward the axis of an organ or organism. “the upper side of a leaf is known as the adaxial surface” Synonyms: adaxial.

What is the meaning of the term dorsal?

1a : being or located near, on, or toward the upper surface of an animal (as a quadruped) opposite the lower or ventral surface. b : being or located near, on, or toward the back or posterior part of the human body. 2 chiefly British : thoracic. Other Words from dorsal.

What is a dorsal fin made of?

Like the flukes, the dorsal fin is made of dense, fibrous connective tissue, without bones or cartilage. Dorsal fin size and shapes vary between ecotypes.

What is the difference between the dorsal and ventral?

The term ventral refers to the anterior (front) aspect of the embryo, while dorsal refers to the posterior (back).

What is another term for dorsal?

What is another word for dorsal?backposteriorvertebralrearhinderafterhindrearwardhindmostaft16 more rows

What is dorsal in human body?

Dorsal cavity As its name implies, it contains organs lying more posterior in the body. The dorsal cavity, again, can be divided into two portions. The upper portion, or the cranial cavity, houses the brain, and the lower portion, or vertebral canal houses the spinal cord.

What is a Sharks top fin called?

Sharks – FinsDorsal Fins depending on the species, there may be either one or two dorsal fins. The first dorsal fin is the most prominent as it is situated on the top of the animal, behind the head. … Anal Fin not all shark species present with an anal fin. … Caudal Fins these are also known as the tails of sharks.

What’s another word for anterior?

Some common synonyms of anterior are antecedent, foregoing, former, preceding, previous, and prior. While all these words mean “being before,” anterior applies to position before or ahead of usually in space, sometimes in time or order.

What is meant by dorsal side?

The dorsal (from Latin dorsum ‘back’) surface of an organism refers to the back, or upper side, of an organism. If talking about the skull, the dorsal side is the top. … For example, in a fish, the pectoral fins are dorsal to the anal fin, but ventral to the dorsal fin.

Is dorsal front or back?

In humans, ventral and anterior, dorsal and posterior are interchangeable because we walk upright, or bipedal. … Anatomists, when considering the human body, refer to the head as superior, toward the feet as inferior, the front of the body as anterior or ventral and the back of the body as posterior or dorsal.

What is a whale’s fin called?

Whales generally have four fins: two pectoral fins (instead of arms), a caudal fin (also called the tail) and a dorsal fin. The caudal fin is used for propulsion of the animal, with up-and-down movements created by powerful muscles along the peduncle. The two pectoral fins serve as the whales’ rudders and stabilizers.