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Nervous System
This category is for questions about the mechanical and chemical process of reactions to internal and external stimuli, ranging from the brain down to the spinal cord, and all nerves, cells and tissues in between.
3,047 Questions
What nerves are involved with hipcups?
Vagus Nerve Thats a Cranial Nerve Depends on the stage of devellopment of the body. Depends on the sexe of the body. Depends on the do/do not being broken (before) I would like to add the x-ray of my hip. (see www.tagged.com/blueteeth, foto's) I had to turn off a lot of motherly nerves in that area, to survive the pain of screws a doctor Pondsen put in my acetabulum against my will. By local osteoporoses i managed to 'push' the screws to a place less painfull. Now nerves turn on again. I try to rott them out totally of corse.
Does a virus have a nervous system?
No viruses don't have any nervous system.They are just made of RNA or DNA and protein.
How does the nervous system sustain life?
It sustain life by sending message or singal to one part of u body to another to let you body know what u wont it to do or it just know what to do an it does it by it self.
What cranial nerve pair supplies many organs in the ventral body cavity?
The vagus nerves supply many organs in the ventral body cavity. They have a very significant role in the function of the body.
What happens when neurotransmitters communicate an excitatory message to the postsynaptic neuron?
When neurotransmitters communicate an inhibitory message to the postsynaptic neuron:
What is the part of the nervous system that governs conscious activities?
central nervous system
The part of the nervous system that governs conscious activities is the somatic nervous system
All the post-ganglionic parasympathatic reseptors are cholinergic (muscarinic) .
and all the post-ganglionic sympaythatic reseptors are adrenergic . Except for sweat glands , Piloerecter muscles , and a few blood vessels they use sympathatic nerves but a cholinergic resepotrs .
-Note that all the pre-ganglionic ( sympathatic and para sympathatic ) reseptors are cholinergic ( Nicotinic ).
-Note that the sweat glands on the palms of the hand are adrenergic , but the rest of the sweat glands are cholinergic.
Importance of number of 7:
7 Days of the Week
7 Deadly Sins
7 Continents
7 Chakras
7 Body Orifices
7 Colors in a rainbow
7 notes in a music scale
7 major metals
7 phases of the moon
7 natural divisions of the brain
7 functions of the nervous system
7 compartments of the heart
7 major body organs
7 year itch
7th inning streatch
7th heaven
7 virtues
7 layers of the OSI model (computer-related)
What is an Autonomic Phenomena?
It is a reaction that is initiated by the central nervous sytem that creates an effect to the body that is involuntary. Such as a twith response that occurs when a trigger point is palpated transversely.
What are the layers of the meninges from superficial to deep?
Meninges is the collective term fro the three membranes covering the brain and spinal cord. The meninges are composed of the
1) Dura
mater is the layer of meninges closest to the skull resting on top of the arachnoid membrane attached to the skull in several pints, the dura
mater is made up of a fibrous material that protect the brain like tight-fitting
cap. Because it is attached to the skull the dura
mater also prevents the brain from moving within the skull.
2) Arachnoid mater spider web like layer. Rest between the pia
mater and the dura
mater. The arachnoid membrane covers the brain loosely, a bit like a hairnet, like the pia
mater it too is impermeable to fluids. The arachnoid membrane also consists of long filaments that attach it to the pia
mater. In between the arachnoid membrane and the pia
mater is an area called the subarachnoid
space, which contains cerebrospinal
fluid. Because the arachnoid membrane is impermeable to fluid, it prevents the cerebrospinal
fluid-- which helps protect the brain from trauma to the skull -- from escaping.
3) Pia mater is the membrane closest to the brain. It is a delicate layer that adheres to the brain. It is soft and thin, and covers the brain and spinal cord like a layer of glue, following every curve and contour of the brain. It is impermeable to fluid and laced with a network of small blood vessels called capillaries that supply blood to the brain and spinal cord.
^ What they are trying to say is -
From Superficial to deep the meninges and their related spaces are as follows:
1 - Dura
mater
2 - Subdural
space
3 - Arachnoid mater
4 - Subarachnoid
space
5- Pia mater
What nervous system cells do not transmit impulses?
Glial cells as they are responsible for providing support to the neuron, nourishing, and making sure homeostasis is maintained, thus they do not transmit impulses.
What are symptoms of autonomic dysreflexia?
.irritation of the skin, bowel, or bladder causes a highly exaggerated response. a rapid rise in blood pressure and a slowing of the heart rate. throbbing headache, nausea, anxiety, sweating, and goose bumps below the level of the injury.
Why vagus nerve is called wandering nerve?
The tenth cranial nerve is called vagus nerve it is also called as wandering nerve.It has been called wandering nerve because of many areas it innervates. the vagus nerve wanders all the way down from the brainstem to the colon, a long wandering trek.
Myasthenia gravis is a neuromuscular disorder involving the muscles and the nerves that control them.
How much oxygen and glucose can brain store for emergency situations?
The brain doesn't have the capacity to store oxygen or glucose. This is the reason why one feels dizzy on getting up suddenly.
What is the name of the nerve cell between the receptor cell and the central nervous system?
SENSORY NEURONE
true
The efferent division of the peripheral nervous system innervates?
A muscle or a gland.
Efferent fibers carry information away from the CNS to innervate tissues that perform functions; such as a gland, a smooth muscle, a skeletal muscle, or cardiac muscle.
The antonym to efferent would be afferent.
How do nutrients play a role in the nervous system?
Naturally, the nervous system needs nutrients (particularly oxygen) to keep it's cells alive and functional, just like any other system.
Why would you get goose bumps learning about the nervous system and the brain?
Most likely because it is dufficult to comprehend that as you are reading and learning about it, it is happening right now, even as you read this sentence.
