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Spinal Cord
The spinal cord is long, cylindrical rod present inside the neural canal of vertebral column. It is a part of central nervous system and controls reflex actions of the body.
1,619 Questions
What does not go gray matter white matter myelin fiber track?
Gray matter doesn't fit. White matter is white because it has myelin covering the axons. And the myelin fiber tract is "white" for the same reason.
What is the name for a doctor that specializes on the spinal cord?
there are two kinds, the chiropractor, who realigns bones either y therapy or massages, or the neurosurgeon the ddoctor who operates on the spine
What might a spinal cord hemorrhage have to do with the onset of paraplegia?
A hemorrhage in the spinal cord can cause pressure on the nerves contained within the column, killing them and preventing a message from being sent from the brain to the limb involved. This happened to my niece about 2 years ago.
Destruction of the anterior horn of the spinal cord results in?
Destruction of the anterior horn of the spinal cord often results in muscular disorders. These include sclerosis, Charcotâ??Marieâ??Tooth disease, progressive muscular atrophy, and other muscular atrophies.
Maintaining thermoregulation is a function of the what?
Thermoregulation is part of a negative feedback loop. Basically, the body reacts to a stimulus (eg lower body temperature) and then works to reverse that stimulus - hence raising the body temperature
the negative feedback loop works when say for example, the stimulus of Falling Body temperature triggers the thermoreceptors in the Hypothalamus (a gland in the brain). These thermoreceptors trigger the hypothalamus (the Modulator in the loop) to make changes in the body to raise temperatuure. some examples are physiological things such as Vasoconstriction (constriction of blood vessels to keep warm blood in the body's core), a reduction in sweating and behaviioural responses such as putting on a jumper or standing in front of a heater. Another response caused by the hypothalamus is to create 'shivering' this rapid movement of muscle cells will increase heat production by up to 40 times and the body temperature will raise to the norm (36.8 degrees C)
hope this helps! I'm doing thermoregulation in human biology at the moment
solution::
using
Kx = F =mg
1] K .(0.63- l ) =54
2] K . (0.84 - l ) = 81
solve these two eqns to get the natural lenght as well as the spring constant
Which is the outermost membrane of the brain and spinal cord?
The dura mater is the outermost membrane of the brain and spinal cord. The dura mater is is responsible for keeping in the cerebrospinal fluid.
What is the Spinal Reflex Arc?
A spinal reflex is an automatic, rapid response to a stimulus. The action is involuntary and occurs without any involvement of thought or the brain. In humans, this action occurs through a neural pathway called the reflex arc. To allow reflexes to occur very quickly, signals come directly from motor neurons in the spine, instead of being delayed by going through the brain.
The arc works as follows:
1. A receptor at the point of stimulus relays the message that there is an adverse stimulus to a sensory neuron
2. The sensory neuron carries the message from the receptor at the point of the stimulus to the spinal cord (part of the central nervous system)
3. In the spinal cord, a relay neuron, or inter-neuron, carries the message from the sensory neuron to a motor neuron
4. The motor neuron then carries the message to the appropriate effector, at which point, the reflex occurs.
After this spinal reflex occurs, sensory neurons send messages to the brain. The brain then relays this information and the messages are consciously interpreted. It is only at this point that you will begin to feel pain.
Though this seems like a complicated process, spinal reflexes occur in under one second. Within that same second, the brain will consciously interpret the information and the person will feel pain.
You may locate the meaning of this, Calliculi, in Santees Anatomy of the Brain and Spinal Cord on pg 163-64 and other areas throughout the book. The book is available for purchase or may be viewed on Google Books.
Which type of neuron conveys messages from your brain and spinal chord to your muscles for movement?
multipolar or motor neurons
paraplegia
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Autonomic hyperreflexia
Yes you do need to see a doctor and you should do so immediately! You could be prone to cysts and although most are not cancerous the roots can entangle into some very complicated areas and the cysts should be removed. Lymph nodes can be the cause (generally not cancerous) and cause lumps as well. Lymph nodes are a filtering system in our bodies and sometimes they can get clogged (sort of like a clogged pipe) and especially people with allergies can have this problem. They can be removed. My girlfriend had three removed; one from the side of her neck and two just under her chin. There could be other causes, but in most cases the prognosis is good as long as you tend to it immediately. Don't let fear hinder you seeing your doctor. Good luck, and please let us know how you made out with the doctor.
What happens after the spinal cord makes a decision in a reflex?
There are no "decisions" involved in a reflex. Generally the response is to trigger whatever motor nerves move the affected area away from the stimulus.
What doctor does see after the spinal cord injury?
If you are having problems with pain ONLY... You should be consulted to see a Pain Specialist. This is an anesthesiologist who has specialized in the treatment of pain. If one is not available, then next would be a neurologist (doctor of the nerves). If you have weakness ONLY, then you will most likely be consulted to a doctor of physical therapy (Physiatrist) who will establish a treatment to strengthen the weak muscles and perhaps order any devices such as braces, shoes, etc... For the "mixed bag" of pain & weakness, then a combination of the above would be the treatment team...
