Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
The Synapse.
Member rating: No Rating | Words: | Submitted: Mon Oct 20 2003
Page Preview
On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:
THE SYNAPSE A SYNAPSE is an area where the membrane of an axon terminal lies very close to the membrane of the next cell e.g.: ( a neuron ( part of a muscle ( gland A synapse where an axon ends close to a muscle is called a NEUROMUSCULAR JUNCTION. The Principle: In a nutshell Information travels across most synapses by way of NEUROTRANSMITTERS chemical messengers found in tiny membranous sacs (synaptic vesicles) located in the enlargements of the ends of the axon terminals called SYNAPTIC KNOBS. The presence of many such knobs allows a neuron to pass information to several other cells or to make more synapses with one cell than with another. Synaptic Knobs also contain numerous mitochondria. When on impulse arrives at the synaptic knob it causes a synaptic vesicle to move towards the pre-synaptic membrane and discharge its contents (a neurotransmitter). This diffuses across the synaptic cleft to the postsynaptic...
Get instant access
- Instant, unlimited access to our documents in full
- Swap your work for free access, or pay £4.99
- To see the full version of this document and 147,383 others
Receive email updates for this category
- Simply tell us your email address and receive a weekly Study Help Email for FREE
- Receive 3 FREE essay views with each email
- Get all the latest essays from Coursework.Info & discussion from TheStudentRoom.co.uk
