anterior and a posterior, of which the anterior is the r septum and the medial intermuscular septum: anterior and posterior. AU - Song, H. S. AU - Lee, C. K. PY - 1989/1/1 Y1 - 1989/1/1 N2 - This paper presents … A point can be anterior to another point behind it yet posterior to a point ahead of it Terms include: They are part of the Circle of Willis , which provides backup circulation to the brain. Also, either one row or both might be so grossly curved that some of the notionally anterior eyes actually may lie posterior to some of the eyes in the posterior row. The anterior and posterior cerebral circulations are interconnected via bilateral posterior communicating arteries. Structures closer to the Most terms of anatomical location are relative to linear motion (Several other terms are also used to describe location. This problem also lies with parts that are normally pointing upwards or downwards and therefore cannot be correctly referred to in terms of anterior and posterior. However, the body has been postulated to act as a bridge or integrator of anterior and posterior mechanisms (Bast et al., 2009). Therefore it is important to consider the relativity of two or more anatomical positions when using the words anterior and posterior.Similar with the term ‘anterior’, posterior may refer to the back leg or tail of an animal. So while "up" might refer to the direction of a standing human's head, the same term ("up") might be used to refer to the direction of the belly of a While it would be possible to introduce a system of axes that is completely consistent between humans and other vertebrates by having two separate pairs of axes, one used exclusively for the head (e.g., anterior/posterior and inferior/superior) and the other exclusively for the torso (e.g., dorsal/ventral and caudal/rostral, or "toward the tail"/"toward the beak"), doing so would require the renaming of many anatomical structures. Generally the modifier term is truncated and an "o" or an "i" is added in prefixing it to the qualified term. We can speculate that continued dendritic elaboration in the body, compared to head and tail, may

To describe how close to the head of an animal something is, three distinct terms are used: 1. anterior = front ( closest to the belly) 2. posterior = back (by your spine) 3. fundal = top of the womb 4. lateral = left or right side of the womb The main positions are anterior and posterior, those are the ones that get all the fuss.

It is usually  used to indicate the position in relation to another organ or structure and may mean that it is ‘in front of’ another organ or structure.The term anterior may also be used to indicate ‘towards the head’ because isolating the front and rear (posterior) orientation may be misleading in certain situations, especially in certain animals.To prevent ambiguity, anterior is regarded as the position towards the front or in front of another organ or structure when a person is in the standard anatomical position for humans (refer to picture) which is standing erect, with the feet together, upper limbs slightly away from the sides of the body with the palms facing forward and the thumb pointing away from the body.Posterior means towards the back and would indicate the opposite end from anterior. For example, "anterolateral" indicates a position that is both anterior and lateral to the body axis (such as the bulk of the There is no definite limit to the contexts in which terms may be modified to qualify each other in such combinations. "Lateral", "dorsal", and "ventral" have no meaning in such organisms, and all can be replaced by the generic term Two specialized terms are useful in describing views of Because of the unusual nature and positions of the eyes of the In what is seen as the likeliest ancestral arrangement of the eyes of the Araneae, there are two roughly parallel, horizontal, symmetrical, transverse rows of eyes, each containing two symmetrically placed pairs, respectively called: anterior and posterior lateral eyes (ALE) and (PLE); and anterior and posterior median eyes (AME) and (PME).

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