The Nervous system. The nerve cell is the basic unit of communication in the vertebrate nervous system. Three Classes of neurons. The Neural circuit consists of Sensory neurons receptor for stimulus Interneuron integrate signals Motor neuron transfer signal to effector (muscle).
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The nerve cell is the basic unit of communication in the vertebrate nervous system
Sensory nerves move a signal towards the brain and spinal cord
Motor neurons move a signal from the brain or spinal cord to the bodyPaths of information flow
Autonomic nerves send signals to and from smooth muscles
ParasympatheticThe Motor division of the PNS has 2 divisions
short term- few bits lasts a couple of hours
Long term- permanent and limitless
The most important info goes rapidly into long term storage
memory is stored in a form resistant to degradation
Possibly caused by changes in synapses.Memory
If a tree falls in the woods with no one to listen does it make a sound?
Mechanoreceptors that respond to changes or constant pressure
Increase in temperature causes and increase in AP
Respond to intense stimulus on other receptors, cannot be ignored
Mechanoreceptors give measurement as to the location of all the muscles and bones in a given moment.Somatic sensations
The oldest method of control is using a signal molecule that moves from one part of the body to the other