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Nerves
Nerves are thread-like structures that form a network of pathways that transmit information from the brain to the body and the body to the brain, in the form of electrical impulses.
1,605 Questions
How do muscles repair themselves?
Like any other part of the body that gets hurt or damaged, the blood runs to the injury, and heals it up. The bone marrow and bone start to regenerate until it it fully healed.
What is suprascapular nerve entrapment?
a rare type of entrapment syndrome that most often occurs in athletes. The major symptom is a dull pain near the shoulder blade, which can progress to weakness and muscle atrophy.
What is mean by the all or none response of a neuron?
The simplest sense, the all-or-none principle of neuronal firing means that a neuron will either fire or it won't, there is no "half" firing. When a neuron receives excitatory input.
Neural transmission across a mammalian synaptic gap is accomplished by?
impulses causing the release of a chemical signal and its diffusion across the synapse.
What is a nerve sparing prostatectomy?
A nerve sparing prostatecomy is a treatment for prostate cancer. A normal prostatecomy often takes a wide scale approach to the prostatectomy and so damages many of the nerves in the area. A nerve sparing prostatectomy aims to only remove and effect nerves that are affected.
Peripheral nervous system
How many motor neurons are involved in the descending motor pathways?
two motor neurons are always involved in descending motor pathways. the upper motor neuron and the lower motor neuron.
What portion of the motor neuron is in the nerve?
A motor neuron is a nerve, specifically it is a nerve that originates in the central nervous system (brain and spinal cord) and ends in its target organ (muscle, gland etc).
What happens when two neurons meet?
these two neutrons are both nuetrally charged there will be no reaction. the Purpose of a neutron is too separate the protons from each other
Microglia
What does a pelvic splanchnic nerve contains?
Preganglionic parasympathetic fibers.
In the Parasympathetic division, the preganglionic axons leave the ventral roots of the spinal cord and collectively form the pelvic splanchnic nerves.
Sensory neurons carry signals from the receptors in our body (e.g. thermal, pressure etc.) to the relay neurons, which are found in our spinal cord. Relay neurons then send signals along the spinal cord to the brain. The brain then processes the information and sends a signal back down the spinal cord, through the relay neurons. Relay neurons then sends signals to motor neurons, which will then affect the muscles' movements.
Read more: What_does_neuron_cells_do
What is the function of the relay nerve?
Neurons are only capable of carrying a message in one direction. Sensory neuronsare afferent neurons, meaning they only relay information to the brain. Motor neuronsare efferent neurons, meaning they carry information from the brain to the target.
In certain instances, it would take too long for information to go to the brain and then come back with an action in response. Instead, relay neurons, or interneurons relay information from sensory neurons to motor neurons, bypassing the brain. Think about touching a blazing hot stove. If the signal went all the way to your brain and back, your hand would be much more damaged than the instant jerk away from the stove that normally happens.
What is a neuron serving as part of the conduction pathway between sensory and motor neurons?
Interneurons are neurons found within the central nervous system (primarily the brain or spinal cord) that connect sensory (afferent) neurons to motor (efferent) neurons. Often these neurons are part of a polysynaptic reflex arc.
interneurons. They are also called association neurons.
What does anxiety do to the nerves?
Anxiety can do these following things to you:
-Make you feel emotional, depressive, worried, angry, useless and weak.
-Makes your whole body tense.
-Carrys on and gets worse if you don't get help.
-Gives you very low confidence.
-Makes you think too much about things.
-Makes your energy levels go down, making you hungrier easier.
-Makes you frustrated and sometimes gives you tummy aches with so much stress.
-You need to go to the toliet more often.
-Shaking hands, sweaty palms, feeling very sick, sometimes makes you sick.
Etc ...
What type of nerve cells act as a nerve glue as they support and protect the neuron?
The type of nerve cells are called neuroglia.
Is it safe to fly if you have a swelling on the optic nerve?
No, not without the SPECIFIC permission of your Doctor.
How do neurons differ from other animal cells?
because one is a piece of poo the other piece of dog scat
Voltage-gated Sodium ions and Potassium ions channels
