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If talking about the skull, the dorsal side is the top. [38] The ventral (from Latin venter 'belly') surface refers to the front, or lower side, of an organism. [38] For example, in a fish, the pectoral fins are dorsal to the anal fin, but ventral to the dorsal fin. The terms are used in other contexts; for example dorsal and ventral gun ...
Superior to the junction, the terminology is the same as in animals with linear nervous systems; dorsal is synonymous with superior and ventral is synonymous with inferior. However, inferior to the midbrain-diencephalic junction the term dorsal is synonymous with posterior and ventral is synonymous with anterior. [1]
Hence, what is technically a transverse (orthogonal) section with respect to the body length axis of a rat (dividing anterior from posterior) may often be referred to in rat neuroanatomical coordinates as a coronal section, and likewise a coronal section with respect to the body (i.e. dividing ventral from dorsal) in a rat brain is referred to ...
The dorsal surface is better preserved than the ventral, with a sharp margin between the two. The head is short with a subcylindrical boss possibly representing a buccal mass, alongside a sub-semicircular possible anterior plate. The posterior portion of Punk's trunk bears around 25 subconical projections near the median ridge, likely gills. A ...
One edge of the "U," – CA4, is embedded into the backward-facing, flexed dentate gyrus. In primates the hippocampus is described as having an anterior and posterior part. In other animals these are known as a ventral and dorsal part. Both parts are of similar composition but belong to different neural circuits. [24]
Anterior and posterior, which describe structures at the front (anterior) and back (posterior) of the body. For example, the toes are anterior to the heel, and the popliteus is posterior to the patella. [1] Superior and inferior, which describe a position above (superior) or below (inferior) another part of the body. For example, the orbits are ...
A body cavity is any space or compartment, or potential space, in an animal body. Cavities accommodate organs and other structures; cavities as potential spaces contain fluid. The two largest human body cavities are the ventral body cavity, and the dorsal body cavity. In the dorsal body cavity the brain and spinal cord are located.
The first is an anterior–posterior (AP) axis which can be visualised as an imaginary axis running from the head or mouth to the tail or other end of an organism. The second is the dorsal–ventral (DV) axis which runs perpendicular to the AP axis.