What does aboral stand for?
aboral- opposite to or away from the mouth; "the aboral surface of a starfish" anatomy, general anatomy- the branch of morphology that deals with the structure of animals oral- of or involving the mouth or mouth region or the surface on which the mouth is located; "the oral cavity"; "the oral mucous membrane"; "the oral surface of a starfish"
What is the difference between oral and aboral?
Aboral (opposite to oral) is used to denote a location along the gastrointestinal canal that is relatively closer to the anus. Different terms are used because of different body plans in animals, whether animals stand on one or two legs, and whether an animal is symmetrical or not, as discussed above.
What are aboral surfaces in biology?
In biology, aboral surfaces are surfaces away from or opposite the mouth. The term is a compound of the Latin preposition ā, a, abs, meaning from or away from and the noun ōs, ōris n., meaning mouth.
What is the oral axis in anatomy?
…axis is hence termed the oral-aboral, or anteroposterior, axis. Except in animals having an odd number of parts arranged in circular fashion (as in the five-armed sea stars), any plane passing through this axis will divide the animal into symmetrical halves.
What is Aboral side?
: situated opposite to or away from the mouth.
What is the Aboral region?
Relating to or denoting the side or end that is furthest from the mouth, especially in animals that lack clear upper and lower sides such as echinoderms. 'the aboral surface' 'The mouth leads to the intestine and anus, which is located in the center of the aboral surface in regular echinoids. '
What does Aboral surface mean?
In biology, aboral surfaces are surfaces away from or opposite the mouth. The term is a compound of the Latin preposition ā, a, abs, meaning from or away from and the noun ōs, ōris n., meaning mouth. It is also the opposite of oral which is the end containing the mouth of a radially symmetrical animal.
What does Aboral end mean?
The end of an animal's body opposite its mouth.
What is oral and Aboral?
Ventral or lower end of organism where mouth is located is known as oral surface and Dorsal or upper end of organism where anus is located known as aboral surface.
What is oral and Aboral axis?
The main axis is heteropolar—i.e., with unlike ends, one of which bears the mouth and is termed the oral, or anterior, end, and the other of which, called the aboral, or posterior, end, forms the rear end of the animal and may bear the anus. The main axis is hence termed the oral-aboral, or anteroposterior, axis.
What does Aboral mean in zoology?
away from or opposite the mouthaboral. / (æbˈɔːrəl) / adjective. zoology away from or opposite the mouth.
How do you tell the difference between the Aboral and oral surfaces?
The body is divided into a central disk from which radiate five arms. The principal body axis, and the axis of symmetry, is the short oral-aboral axis, which passes vertically through the center of the disk. The animal's pale lower side is the oral surface and the dark upper side is the aboral surface.
What is the opposite of Aboral?
Opposite of away from the oral opening or mouth (compare with ventral) orad.
How do you pronounce Aboral?
0:000:53Pronunciation of Aboral | Definition of Aboral - YouTubeYouTubeStart of suggested clipEnd of suggested clipAdoro adoro a todo adoro adoro a bordo adoro adoro a todos.MoreAdoro adoro a todo adoro adoro a bordo adoro adoro a todos.
How would you distinguish the oral and Aboral sides of a sea star?
Explanation: Sea stars have two surfaces: the oral and the aboral. The oral is the side with the sea star's mouth and most people would think of it as the "bottom." The aboral is the opposite side, and this is where the madreporite lies. The madreporite is the opening to the water vascular system.
What is the meaning of asteroidea?
a class of star-shaped ECHINODERMS which have a basic pentaradiate shape (a five-sided RADIAL SYMMETRY), e.g. starfish.
What is the difference between a proximal and a distal arm?
The terms proximal (from Latin proximus 'nearest') and distal (from Latin distare 'to stand away from') are used to describe parts of a feature that are close to or distant from the main mass of the body, respectively. Thus the upper arm in humans is proximal and the hand is distal.
What does the ab- in jellyfish mean?
In this image showing the jellyfish species Chrysaora, the prefix 'ab-', is used to indicate something that is 'away from' the mouth, for example the aboral. Other terms are combined to indicate axes, such as proximodistal axis.
What is anatomical location?
Anatomical terms of location. Standard anatomical terms of location are used to unambiguously describe the anatomy of animals, including humans. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position provides a definition of what is at the front ("anterior"), ...
What is the term for the location of an animal?
Neuroanatomy. v. t. e. Standard anatomical terms of location are used to unambiguously describe the anatomy of animals, including humans. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position.
What is on the top of a human?
Thus, what is on "top" of a human is the head, whereas the "top" of a dog may be its back, and the "top" of a flounder could refer to either its left or its right side. Unique terms are used to describe animals without a backbone ( invertebrates ), because of their wide variety of shapes and symmetry.
Which plane divides the body into left and right?
Anatomical terms describe structures with relation to four main anatomical planes: The median plane, which divides the body into left and right. This passes through the head, spinal cord, navel, and, in many animals, the tail. The sagittal planes, which are parallel to the median plane.
Is X-ray anterior or posterior?
In radiology, an X-ray image may be said to be "anteroposterior", indicating that the beam of X-rays passes from their source to patient's anterior body wall through the body to exit through posterior body wall. Combined terms were once generally, hyphenated, but the modern tendency is to omit the hyphen.