Comparison between the dimensions of dendritic spines in the cerebral cortex of newborn and adult guinea pigs

1986 ◽  
Vol 244 (3) ◽  
pp. 277-285 ◽  
Author(s):  
Almut Schüz
Keyword(s):  
Cerebral Cortex ◽  
Dendritic Spines ◽  
Guinea Pigs

Free amino acid concentrations in cerebral cortex of guinea pigs with epileptogenic lesions

1962 ◽  
Vol 5 (6) ◽  
pp. 525-532 ◽  
Author(s):  
Yo Aelony ◽  
John Logothetis ◽  
Bruce Bart ◽  
Frank Morrell ◽  
Magdaline Bovis
Keyword(s):  
Cerebral Cortex ◽  
Amino Acid ◽  
Free Amino Acid ◽  
Guinea Pigs ◽  
Free Amino ◽  
Amino Acid Concentrations

scholarly journals The role of the formin protein Fhod3 in morphogenesis of dendritic spines in the mouse cerebral cortex

2021 ◽  
Vol 94 (0) ◽  
pp. 2-Y-G1-3
Author(s):  
Hikmawan Wahyu Sulistomo ◽  
Takayuki Nemoto ◽  
Yohko Kage ◽  
Hajime Fujii ◽  
Haruhiko Bito ◽  
...  
Keyword(s):  
Cerebral Cortex ◽  
Dendritic Spines ◽  
Mouse Cerebral Cortex

scholarly journals THE SMALL PYRAMIDAL NEURON OF THE RAT CEREBRAL CORTEX

1968 ◽  
Vol 39 (3) ◽  
pp. 604-619 ◽  
Author(s):  
Alan Peters ◽  
Charmian C. Proskauer ◽  
Ita R. Kaiserman-Abramof
Keyword(s):  
Cerebral Cortex ◽  
Dendritic Spines ◽  
Pyramidal Neuron ◽  
Synaptic Vesicles ◽  
Initial Segment ◽  
Axon Terminals ◽  
Axon Hillock ◽  
Synaptic Junctions ◽  
Cytological Features ◽  
Synaptic Complexes

The axon of the pyramidal neuron in the cerebral cortex arises either directly from the perikaryon or as a branch from a basal dendrite. When it arises from the perikaryon, an axon hillock is present. The hillock is a region in which there is a transition between the cytological features of the perikaryon and those of the initial segment of the axon. Thus, in the hillock there is a diminution in the number of ribosomes and a beginning of the fasciculation of microtubules that characterize the initial segment. Not all of the microtubules entering the hillock from the perikaryon continue into the initial segment. Distally, the axon hillock ends where the dense undercoating of the plasma membrane of the initial segment commences. Dense material also appears in the extracellular space surrounding the initial segment. The initial segment of the pyramidal cell axon contains a cisternal organelle consisting of stacks of flattened cisternae alternating with plates of dense granular material. These cisternal organelles resemble the spine apparatuses that occur in the dendritic spines of this same neuron. Axo-axonal synapses are formed between the initial segment and surrounding axon terminals. The axon terminals contain clear synaptic vesicles and, at the synaptic junctions, both synaptic complexes and puncta adhaerentia are present.

Sign in / Sign up

Export Citation Format

Share Document