Nerves

Point to point or saltatory conduction.

In The Hair cells.

The median nerve (originating from the brachial plexus, C5-C8 and T1) supplies the anterior forearm muscles and the thenar muscles. It can be compressed at the carpal tunnel, resulting in some degree of sensory deficit to fingers 1-3 and weakness in thumb movement (carpal tunnel syndrome). (from The Anatomy Coloring Book, Wynn Kapit and Lawrence M. Elson, 2002)

Cervical region

Synapses occur between two neurons. Electrical activitiy in the pre-synaptic neuron influences the post-synaptic neuron. There are two types of synapses in the body: Electrical and chemical. Electrical synapses occur in pre and post synaptic neurons that are joined via gap junctions. Currents from action potentials flow across the junction through channels called connexons. This current will depolarize the membrane of the post synaptic neuron to threshold, which will continue the action potential in the cell. Electrical synapses are fast and bidirectional. However, they are mainly found in cardiac and smooth muscles, and not in the mammalian nervous system.
Chemical synapses use neurotransmitters. Depolarization occurs in the pre-synaptic neuron and calcium ions rush in. The calcium ions activate neurotransmitter release into the synaptic cleft. The neurotransmitters reach the post-synaptic neuron and cause action potentials to develop.
Note: this can go into much more detail

A intermediate neurone sends the message to the brain saying danger and then the brain tells the motor neurons to react from Ryan Thomas Sylvester

relife of back pain

Receptors

The taste and touch sensation

The soma (cell body) of each pseudounipolar neuron is located within a dorsal root ganglion. The axon leaves the cell body (and out of the dorsal root ganglion) into the dorsal root, where it splits into two branches. The central branch goes to the posterior (dorsal) horn of the spinal cord, where it forms synapses with other neurons. The peripheral branch travels through the distal dorsal root into the spinal nerve all the way until skin, joint, and muscle.

Generally will not fire, although it's the case that sometimes neurons will fire spontaneously, without any input.

eg.,

Spencer L. Smith and Thomas S. Otis, The Journal of Neuroscience, January 15, 2003:

Spontaneously firing neurons are found in several regions of the brain, including the midbrain, the hypothalamus, the basal gan-

glia, and the cerebellum (Llinas and Sugimori, 1980; du Lac and

Lisberger, 1995; Uteshev et al., 1995; Ha

̈usser and Clark, 1997;

Bevan and Wilson, 1999; Ghamari-Langroudi and Bourque,

2000)

Both supply to the scrotum in males, but the genitofemoral supplies to the anterior surface of the thigh while the illoinguinal nerve supplies the superior medial aspect of thigh.

It's a satellite communications network with the theoretical ability to connect to any video-capable device - cell phones, computers, and televisions are shown, and allow people to place video calls to anyone, anywhere in the world via the satellite network. It can also be used for broadcasts that reach the entire world.

A hormone response is far-reaching and can affect more than one cell or tissue group and can last minutes to hours, even days. Synaptic transmission is strictly locally acting and is over and done with shortly after it begins (i.e, the neurotransmitters are quickly cleared to prevent ongoing stimulation).

The spinal cord serves as the center for reflexes. Reflexes don't enter the brain and all, which is a good thing because it is too slow for reflexes to work to protect us from harm.

A dust mite, being a microscopic arachnid, has a very simple nervous system compared to more complex organisms. It typically has around a few hundred to a few thousand neurons, which are responsible for basic sensory functions and motor control. These neurons help the dust mite navigate its environment, find food sources, and avoid predators.

First of all, what are* the functions of a neurone

They provide an elaborate storage system which can be regulated and protected from degradation because neurotransmitters are compartmentalised.

Electrical

Neurotransmitters diffuse across the synaptic cleft (a very short distance) and bind to receptor proteins on the postsynaptic membrane. Excitatory neurotransmitters cause sodium ions to move through receptor proteins depolarizing the membrane. Inhibitory neurotransmitters do not depolarize the postsynaptic membrane. Thus, the condition that would produce inhibition at synapse is called HYPERPOLARIZATION.

It can occur as a complication of chronic laminitis with rotation and sinking of the pedal bone (P3 or distal phalanx), followed by secondary infection. It can also occur in non-laminitic feet with long toe/low heel conformation, where the hoof wall separation and subsequent infection are the primary features. It may also occur in feet with poor dorso-palmar (front to back) balance and as a sequel to 'club foot' and may be predisposed by poor quality hoof horn. Infection with anaerobic bacteria and yeasts, which are common hoof contaminants and an important feature in all forms of seedy toe, can liquefy hoof keratin, separating the sensitive laminae, progressing to rotation of the pedal bone as in laminitis. It can occur as a complication of chronic laminitis with rotation and sinking of the pedal bone (P3 or distal phalanx), followed by secondary infection. It can also occur in non-laminitic feet with long toe/low heel conformation, where the hoof wall separation and subsequent infection are the primary features. It may also occur in feet with poor dorso-palmar (front to back) balance and as a sequel to 'club foot' and may be predisposed by poor quality hoof horn. Infection with anaerobic bacteria and yeasts, which are common hoof contaminants and an important feature in all forms of seedy toe, can liquefy hoof keratin, separating the sensitive laminae, progressing to rotation of the pedal bone as in laminitis.

The chemoreceptor trigger zone is a bilateral set of centers in the brainstem lying under the floor of the fourth ventricle.CTZ has connection with vomiting center and play indirectly to stimulate vomiting.. Electrical stimulation of these centers does not induce vomiting, but application of emetic drugs does - if and only if the vomition centers are intact. The chemoreceptor trigger zones function as emetic chemoreceptors for the vomition centers - chemical abnormalities in the body (e.g. emetic drugs, uremia, hypoxia and diabetic ketoacidosis) are sensed by these centers, which then send excitatory signs to the vomition centers. Many of the antiemetic drugs act at the level of the chemoreceptor trigger zone.

No, it's a "sugar transmitter" , it transports sugar to be used by the different organs of the body. So less insulin produced, more sugar concentration in the blood.

364 days