Skeletal muscle contraction is activated by motor neurons in the spinal cord, which are themselves under control from motor neurons in the brain. Without nervous input, the muscles wont respond to volitional control.
Threshold stimulus
Yes. It is only in very extreme cases where Lyme Disease isn't diagnosed and treated for a long period of time that it is fatal. It isn't the Lyme Disease that would be fatal but rather complications and co-infections that could result from the disease going untreated. In some cases, Lyme Disease that isn't treated for an extended time may lead to paralysis. Most often, Lyme Disease is discovered and treated before any permanent damage is sustained.
Copper
Internal capsule contains all the nerve fibres coming from motor area of brain. So hemorrhage result in paralysis of the oposite side of the body. As there is crossing of nerve fibres to oposite side.
Improved sanitation was the direct result of the discovery that germs caused disease. Hospitals changed their practices to keep diseases from being spread.
Hypertension
Tay-Sachs disease eventaully causes the child to develops problems with breathing and swallowing. Blindness, paralysis, and death follow.
If the scoliosis is so severe that there is injury to the spinal cord, paralysis could result.
Most injuries to the skeletal system result from trauma. For instance, fractures and sprains are usually the result of accidents.
I dont think so but it can result in full body paralysis.
overuse
There are many type of disease that can either effect the bone or our whole body system but one particular disease that affect the bones is osteoporosis. This is a disease in which low bone mass and the structure of a bones is change and damaged and will result in fragility and increases the risk of fracture.
Threshold stimulus
Motor Neuron Diseases are any of several degenerative disorders which affect the neurons controlling voluntary muscular functions. These types of disorder cause the loss of control and eventual atrophy of muscles, leaving victims unable to move, speak and interact with the world around them. It is possible and in the case of some diseases (such as Lou Gehrig's Disease) almost assured that death will be the result of the condition.
yes it can. If high blood pressure is left untreated, it can cause paralysis, loss of bodily function and motor skills are the result.
There is no disease that is the result of hyperthyroidism. Hyperthyroidism is a symptom, not a disease. Hyperthyroidism however, is the result of other disease processes including:Graves' DiseaseHashimoto's thyrotoxicosisIodine toxicityCancer
Clostridium tetani is a bacterium that produces and secretes a toxin -- the tetanus toxin -- that paralyzes muscles. Tetanus is characterized by a specific type of paralysis wherein the muscles are continuously flexed. The toxin achieves this by selectively altering the activity of the neurons that control muscle (called motor neurons). Motor neurons are controlled through connections from many other cells. Some connections are stimulatory and would tend to increase the likelihood that the motor neuron stimulates muscle contraction; other connections are inhibitory and decrease the likelihood of motor neuron activity.The stimulatory and inhibitory connections are constantly in a tug-of-war over control of the motor neurons. It is the regulation of these connections that controls whether a muscle will contract or not. At rest, input from the inhibitory neurons predominates, and the motor neuron is quiet; when contraction is desired, the stimulatory neurons increase their activity and activate the motor neuron. Tetanus toxin selectively knocks out these inhibitory connections so that motor neurons are excited continuously. The result is that motor neurons cannot be controlled in the usual way, by increasing and decreasing the stimulatory and inhibitory inputs. Since this is the only way to control muscle contraction, the ultimate result is paralysis -- the inability to consciously control the muscles. The specific type of paralysis caused by tetanus is called spastic paralysis. This is different from the flaccid paralysis seen in other diseases (eg, Clostridium botulinum).