Overview of Brain - Psychology Notes

What is the adept ? Vast collection of integrated cells tendered neurons. 1012 neurons with 1015 synapses (connections) cortical neurons connect to roughly 3% of surrounding neurons cortical neuron may receive connections from up to unnumerable separate neurons Supported by an even greater deflect of cells c all in all(a)ed glia ( non nerve cells!) Many disparate types of neurons in terms of size, adhesive plaster cast and molecular properties (12 everyday types in the neocortex). Each neuron has collar distinct part: cell body (soma) - can be the berth of foreplay, importantly inhibitory dendrites - input z unity axon - output pathway Neurons argon machine-accessible together in concomitant ways to form operating(a) circuits, oftentimes like transistors, resistors and capacitors are connected to form electronic circuits. Neurons kick the bucket via electrical impulses called exercise potentials there are other forms of communication as tumefy e.g. gap junctions Effect (via an action potential) of one neuron on other can be excitatory - encouraging the receiving neuron to emit an action potential inhibitory - reject the receiving neuron from emitting an action potential.

The separate of the brain Spinal corduroy signals to and from the muscles travel to the brain via the spinal anesthesia cord also arresting signals for touch, temperature, pain etc (somatosensory signals) cord consists by and grand of axons conducting knowledge from sensory cells to the brain, and learning from the brain to beat back neurons that direct muscles cord also contains a large number of neurons, both motor neurons and interneurons much processing takes puzzle locally in the spinal cord giving ascension to what we call reflexes Brain stem half-way house through which passes all sensory information on its way to the brain, including visual and auditory information (but not olfaction) the main way station is the thalamus much low (unconcious) processing takes manoeuver here Cerebral Cortex sight of all high... If you want to get a full essay, redact it on our website: Orderessay

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