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Skeletal muscle:
(occurs at neuro muscular junction)
At the end of the skeletal muscle fibre, there is a single motor neuron that forms many finer branches. At the end of these branches is a synaptic terminal which contain mitochondria and vesicles which in turn contain ACh.
So, when an action potential is propagated down towards the synaptic terminal, ACh is triggered to be released by exocytosis into the synaptic cleft and then onto the motor end plate (which is the other surface upon which the action potential will propagate; this is highly folded for increased surface area).
ACh then binds to receptors on the motor end plate, changing its permeability to Na+ ions. Na+ ions (due to an increased electrochemical gradient) rush into the sarcolemma. This influx increases until AChE breaks down the ACh. This influx results in the generation of an action potential!
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoAcetylcholine - synthesized from Choline, Lecithin, and panthothenic acid (B5), or Diethylaminoethanol (DMAE)
- Arousal and orgasm
- voluntary muscular control and proper tone
- enhance energy and stamina
- memory
- long-term planning
- mental focus
Wiki User
∙ 9y agoAcetylcholine is one of the primary neurotransmitters in the peripheral nervous system, activating skeletal muscles. It also serves a major function in the autonomic nervous system, serving in all pre and post ganglionic parasympathetic neurons.
Wiki User
∙ 14y agocauses muscle action by transmitting nerve impulses across synapses
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What types of things are living things capable of responding to?
. . . of responding to stimuli.
How do kangaroo respond to stimuli during its life?
they hop and eat basically everything they do they are responding to stimuli
What is responding stimuli?
Response to stimuli refers to a response to outside stimuli such as a noise or a smell. It is a term that refers to an organisms ability to respond to the outside environment.
Responding or adjusting to factors in the environment is what sign of life?
Response to stimuli.
Why would fungi decline after disappearance of insects?
because its responding to stimuli
What characterizes a person who is 'out of touch with reality'?
When a person is responding to non-existent stimuli (environment) and/or not responding to existent (present environment) stimuli. In other words, a person is interacting with 'something that is not there' or not interacting with their environment that is definitely present.
Responding to stimuli that are similar but not identical to a conditioned stimulus is called?
Stimulus Generalization-
You observe a plant on your windowsill that grow at an angle toward the outside This is an example of a living things?
Responding to stimuli.
In myasthenis gravis what cellular receptors are affected?
Acetylcholine receptors at neuromuscular junctions are affected in MG. MG is an autoimmune disorder in which the body produces antibodies against its own protein, the acetylcholine receptor. These antibodies block the receptor, preventing the binding of acetylcholine and inhibiting the function of the receptor, which is to initiate a depolarization in muscle cells that will lead to contraction. Fewer available acetylcholine receptors means greater stimuli, i.e. more acetylcholine has to be released to cause a contraction. This manifests physically as serious weakness resulting from inability to move muscles at will. The name of the disease describes the symptoms quite well (my-, muscle; -a-, without; -sthenia, strength; gravis, heavy, serious).
What are the function of the nociceptors?
Detecting painful stimuli
What are passive smart materials?
Passive smart materials: which can only sense the environmental condition or stimuli. Active smart materials: which sense and react to the condition or stimuli. Very smart materials: which can sense, react and adapt themselves accordingly. Intelligent materials: which are those capable of responding or activated to perform a function in a manual or pre-programmed manner.
Neurotransmitter acetylcholine has a major role in what behavioral function?
Muscle Movement Cognitive functioning
