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The events that occur at neuromuscular junction are depicted belowidentity by labeling every structure provided with leader line?
To label the structures at a neuromuscular junction, you would identify the following key components: the motor neuron, which transmits the nerve impulse; the synaptic cleft, which is the gap between the neuron and muscle cell; the motor end plate, which is the specialized region of the muscle cell membrane; and acetylcholine (ACh) vesicles, which are released from the neuron to stimulate muscle contraction. Additionally, you might include receptors on the muscle cell membrane that bind ACh, initiating the muscle action potential.
What part of a muscle fiber junctions with a motor neuron?
There is no junction. Motor neurons are riddled throughout the muscle spindles. Every muscle spindle has a nerve supply or it would not function. think about the way capilaries infiltrate mucles, it's pretty finite. when you are talking about the neurons you are talking about a finite thing, there are billions of them in your body.
How does botulisma serious form of food poisoningcause muscle paralysis?
Botulinum toxin (aka. Botox, produced by the bacteria Clostridium Botulinum) causes paralysis by disrupting exocytosis of acetylcholine into the neuromuscular junction. When a nerve impulse reaches the neuromuscular junction, it normally triggers vesicles storing acetylcholine to fuse with the axonal membrane, releasing its contents into the junction where acetylcholine can trigger an action potential in the muscle fibre. Failure of the vesicle to fuse and release its contents into the junction deprives the muscle of any kind of signal that would cause contraction, thereby paralyzing it.
What would happen if acetylcholine was released into a neuromuscular junction?
It attaches to its receptor, and binds. Causes another action potential, (calcium released) and it goes to the T-tubule of the Sarcoplasmic reticulum, and attaches to troponin, which moves the tropomyosin, so the myosin and actin and attach, and cause a muscle contraction.
Which skin cell keratinocyte sudoriferous glandular epithelial cell arrector pili muscle cell fibroblast would form a junction with a motor neuron?
arrector pili muscle cell
Why would a neuron not send an impulse?
If a neuron is not sending out an impulse or signal, this means the neuron is at rest. Neurons send signals electrochemically.
Why would a lack of neurotransmitters cause problems?
neurotransmitters send signals from neuron to neuron
What are three kinds of neutrons that would be involved in a reflex impulse?
They are neurons and not neutrons. You have afferent neuron. Then you have intermediate neuron and then you have the efferent neuron in the reflex arc.
What Three kinds of neutrons that would be involved in a reflex impulse?
They are neurons and not neutrons. You have afferent neuron. Then you have intermediate neuron and then you have the efferent neuron in the reflex arc.
Certain mental problems are thought to be caused by not having enough neurotransmitters. Why would a lack of neurotransmitters cause problems?
Neurotransmitters send signals from neuron to neuron
What type of neuron that interpretes message and sends out command?
That would be an interneuron otherwise known as an associative neuron.
What would be the cause of a change in afferent and efferent?
A change in afferent pathways could be due to damage or dysfunction in sensory receptors, nerves, or pathways. A change in efferent pathways could be caused by issues in motor neurons or the neuromuscular junction. Both types of changes can result in altered sensory perception or impaired motor function.
