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Kenyon cells have dendritic branches that arborize in the calyx or calyces, cup-shaped regions of the mushroom body. At the base of the calyces, Kenyon cell axons come together and form a bundle known as the pedunculus. At the end of the pedunculus, Kenyon cell axons bifurcate and extend branches into the vertical and medial lobes. [4]
Mushroom bodies visible in a Drosophila brain as two stalks. From Jenett et al., 2006 [1] The mushroom bodies or corpora pedunculata are a pair of structures in the brain of arthropods, including insects and crustaceans, [2] and some annelids (notably the ragworm Platynereis dumerilii). [3] They are known to play a role in olfactory learning ...
Cephalization of the nervous system has led to the formation of a brain with varying degrees of functional centralization in three phyla of bilaterian animals, namely the arthropods, cephalopod molluscs, and vertebrates.
The cell body is located at the base with a dendrite extending far enough into the hair that deflection of the hair will open mechanotransduction channels and produce electrical currents. While the cell body and dendrite are located peripherally, the axon of bristle neurons project to either the brain or the ventral nerve cord (VNC) of the ...
The strong, segmented limbs of arthropods eliminate the need for one of the coelom's main ancestral functions, as a hydrostatic skeleton, which muscles compress in order to change the animal's shape and thus enable it to move. Hence the coelom of the arthropod is reduced to small areas around the reproductive and excretory systems.
The central nervous system (CNS) is the part of the nervous system consisting primarily of the brain and spinal cord.The CNS is so named because the brain integrates the received information and coordinates and influences the activity of all parts of the bodies of bilaterally symmetric and triploblastic animals—that is, all multicellular animals except sponges and diploblasts.
Locust brain. The protocerebrum, associated with the eyes (compound eyes and ocelli). [2] Directly associated with the eyes is the optic lobe, as the visual center of the brain. The deutocerebrum processes sensory information from the antennae. [2] [3] It consists of two parts, the antennal lobe and the dorsal lobe.
Most famous parts of the brain highlighted in different colours The human brain anatomical regions are ordered following standard neuroanatomy hierarchies. Functional , connective , and developmental regions are listed in parentheses where appropriate.