Dictionary » C » Cortical

Cortical

Cortical

(Science: anatomy) Pertaining to or of the nature of a cortex or bark.

Origin: L. Corticalis


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Avian and ratite medullary bone

... attached to the cortex? Did it have any mechanical strength or the thin basal layer of medullary bone will eventually completely separated from cortical bone after sometime?

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by munyit
Mon Apr 02, 2012 4:43 am
 
Forum: Physiology
Topic: Avian and ratite medullary bone
Replies: 0
Views: 1662

Re: why does stretching feel good?

... neurons to reach action potential firing threshold and fire away, this signals will synapse at the spinal cord, where it later must reach higher cortical areas and synapse with neurons that carry one of the many feel-good neurotransmitters that the good lord in his immense knowledge of neurochemistry, ...

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by droog
Thu Jul 14, 2011 8:14 am
 
Forum: Physiology
Topic: why does stretching feel good?
Replies: 17
Views: 64938

The initiating Ca 2+ ion

... from intracellular storage in the egg upon fertilizaation, starting at the point of sperm entry. This calcium wave is the initiator of the cortical granule reaction that slowly blocks polyspermy and creates the fertilization envelope. Beginning the whole process of development for the zygote.

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by kolean
Wed Jul 01, 2009 2:15 pm
 
Forum: Cell Biology
Topic: The initiating Ca 2+ ion
Replies: 3
Views: 2962

Brain size=IQ level theory (Blacks vs Whites & Asians)

... equivalent to or greater than any purported race differences. He also opposed conclusions of race differences in structural variables such as cortical thickness, size of frontal lobe, or complexity of the brain's convolutions. Rushton (1988a), however, countered that aggregating across studies ...

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by TJJ
Fri May 16, 2008 12:17 am
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 72
Views: 258618

Re: Brain size=IQ level theory (Blacks vs Whites & Asians)

... that brain size and cognitive ability are related? Yes! Haug (1987, p.135) found a correlation of 0.479 (N = 81, P<0.001) between number of cortical neurons (based on a partial count of representative areas of the brain) and brain size in humans. His sample included both men and women. The ...

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by TJJ
Fri May 16, 2008 12:13 am
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 72
Views: 258618
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