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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
The automatic nerve response is from the system which controls the involuntary autonomous functions of the body. Breathing and heart beats are examples of these.
Cellular metabolism and coronary blood vessels
Affected by BOTH = Gallbladder & Salivary glands
What is the action of Prozac in the central nervous system?
Prozac is an SSRI (selective serotonin reuptake inhibitor) & acts to keep serotonin in the synapse (space between neurons). This is accomplished by inhibiting the normal process of extracting serotonin from the synapse by a process called reuptake. Keeping serotonin in the synapse longer causes the serotonergic neruons to be more effective.
Which part of the nervous system coordinates involuntary responses?
The nervous system coordinates and controls body movements and responses.
Does tapeworm have nervouse system?
Nervous system has completely disappeared from tape worms,since they have completely adapted to parasitic life.
Accessory nerve is the eleventh cranial nerve. It originates from the lateral of the olives ( a structure in the medulla of the brain). It supply the motor function only. The muscles supplied by Accessory nerve is trapezius muscle and the sternocledomastoid muscle.
I had my accessory nerve cut by accident in a lymph node removal procedure. I was not able to move my arm for 2 weeks. I started doing physical therapy because at the time I didn't know my nerve was cut, we thought it was just maybe slightly damaged. Therapy helped with easing pain. I can't shrub my shoulder up & down or shrub it forward & back, or squeeze my scapula together. I also can't raise my arm past my chest. I can't make a wingspan what so ever. I also lost the feeing in the side of my face, neck, parts of my chest around the clavicle area, shoulder, & scapula. The pain is terrible, it will stop you in your tracks. I sometimes scream when I receive nerve shocks. I have a lot a pain in my head too. My vision in one eye became blurry at times & the hearing in my ear was very pore, it sounded like I a "wooshing" sound kinda like a seashell to my ear. I can't stand for more than 5 minutes before the pain gets unbearable. Reclined or laying down relieves slot of pain. & I can go on forever about symptoms.
I actually just had surgery last week in attempt to fix my arm but I wont actually know if the surgery worked for 6 months when I have an EMG test done, but until then I'm in an arm immobilizer, they have my arm strapped down to my side 24/7 & I can never take it off, not even in the shower, & I can only sleep on one side for 3 weeks & this thing hurts, I'm like bruised around my ribs from it. I can't even get in a car. The reason why I have to wear that thing is because the stitched that they used to reattach all the severed nerves are smaller than a strand of hair & any jerking motion can tear open the stitches.
If anybody knows of anyone who has this injury, comfort them. It's a very devastating, depressing, & a very painful injury. It's not a injury where you have surgery one day & are back at work 2 weeks later, it's a 2-4 year recovery span. So lots of physical therapy and prayers that we all have the best outcome. It puts your life on hold. And my best advice to people enduring this same injury is to stay positive as hard as you can. Do not let this injury get the best of you. There will bee a light at the end of every tunnel
What body system is the nerve cell in?
A nerve cell is part of the nervous system, a network of neurons that carry signals throughout the body.
Major parts of the nervous system?
The 2 main parts of the human nervous system is the central nervous system and the peripheral nervous system. The brain, spinal cord, nerves, and neurons are all part of both of those systems.
What neurotransmitter does Zoloft affect?
The exact mechanism of Zoloft is unknown, but it is believed to increase the extracellular level of the neurotransmitter serotonin by limiting its reabsorption into the presynaptic cell.
How is hearing connected to the nervous system?
Our ears interpret sounds we hear and send important signals to the brain. Hearing these sounds allows us to know what is going on around us which helps us to maintain homeostasis. The inner ear is also responsible for the balance in our body.
adrenal glands!
Does synesthesia affect the nervous system?
I am not quite sure what you mean by this. Could you explain more?
If you mean what types of synesthesia are in existence, then the answer is oh, so many! Think of any two senses (ex. touch and sight), and you can cross them. Here's a short list of major types for an example. Note that there are many sub-categories within these.
- Sight -> sight, sound, taste, touch, smell, emotion, concept
- Sound -> sight, sound, taste, touch, smell, emotion, concept
- Taste -> sight, sound, taste, touch, smell, emotion, concept
- Touch -> sight, sound, taste, touch, smell, emotion, concept
- Smell -> sight, sound, taste, touch, smell, emotion, concept
- Emotion -> sight, sound, taste, touch, smell, emotion, concept
- Concept -> sight, sound, taste, touch, smell, emotion, concept
If you mean how does synesthesia affect the daily lives of synesthetes, then that's another topic altogether, and the answer differs with each synesthete. Most say it doesn't negatively affect them much or at all; in fact, it is a helpful trait to have because it can be used as a memory tool or something.
Others have negative responses to certain things and that can range from a minor annoyance to something that really affects how you live your life. Again, this will depend on the specific person, but an example is Ordinal Linguistic Personification. This is where personalities and genders are attributed to letters, numbers, chairs, trees, and so on. In math, for example, having certain numbers beside one another can cause a problem for a synesthete because the numbers might not get along or might be fighting one another.
Lastly, sometimes the sheer number of synesthetic responses a person gets at one time can be overwhelming. For instance, a person with multiple types of synesthesia might get overwhelmed in a loud, crowded room. Not only would that be overwhelming on a normal level (too loud, too crowded, too much going on) but then the person gets the colors of the voices, the colors of the people's personalities, the taste of the words, the shapes of the smells, and so on. Again, it depends on the individual person.
Yes. The peripheral nervous system (PNS) functions primarily to connect the central nervous system (that is, the brain and spinal cord) to the rest of the body in order to allow the brain to direct the body to perform its various functions. The PNS is divided into two parts. The somatic system controls voluntary actions, such as walking and other movements; the autonomous system controls involuntary actions, such as breathing and digestion.
What part of the nervous system is affected if someone cannot walk after an accident?
The damage is to the voluntary nervous system, that controls muscular movement. This is associated with either brain or spinal injuries.
What neurons make up the peripheral nervous system?
Unified network of communications, but on an anatomical basis, it is divided into two primary portions. Which peripheral nervous system is the second portion.
The spinal cord
The peripheral nervous system consists of autonomic and the somatic nervous systems.
How is the skin involved with the nervous system?
The skin has specialized sensors that are imbeded into it such as:
Hair follicle endings: responds to hair displacement
ruffini endings: responding to pressure on the skin
krause corpuscle: responding to pressure on the lips or tongue
Pacinian corpuscle: which responds to vibration in deep layers of dermis
Messiner corpuscle: which responds to vibration in the dermis of glabrous skin
or free nerve endings: which respond to mechhanical thermal or noxious stimulaiton
all of these receptors pick up things from the environment and send them to the brain for perception and identification.
What are the functions and each parts of nervous system?
The function of the nervous system is to enable us to feel our surroundings. The five senses (sight, touch, hearing, taste and smell) have different sensory neurones in various parts of the body. The most sensitive parts of the body are the fingertips and lips, which have far more sensory neurones per square centimetre than other parts of the body. The nerve impulse travels from the sensory neurone, across a synapse (the gap between the end of one neurone and the dendrites (fingers) of the next) and reaches the next neurone. The signal reaches the coordinator (either the brain or spinal cord) and is then sent to a certain part of the body via a motor neurone, which eventually reaches the muscle and causes a movement. The nervous system is effected by stimulants and depressants, such as alcohol and drugs, which change the speed of reaction times. Parts_and_function_of_nervous_system
What are the structural parts of the nervous system?
he nervous system derives its name from nerves, which are cylindrical bundles of fibers that emanate from the brain and central cord, and branch repeatedly to innervate every part of the body.[2] Nerves are large enough to have been recognized by the ancient Egyptians, Greeks, and Romans,[3] but their internal structure was not understood until it became possible to examine them using a microscope.[4] A microscopic examination shows that nerves consist primarily of the axons of neurons, along with a variety of membranes that wrap around them and segregate them into fascicles. The neurons that give rise to nerves do not lie entirely within the nerves themselves-their cell bodies reside within the brain, central cord, or peripheral ganglia.
What are the two principal divisions in the nervous system?
The Central Nervous System and the Peripheral Nervous System or CNS and PNS are the two main divisions of the nervous system. The CNS consists of the spinal cord and brain and gathers info. in the spinal cord and up to the brain for interpretation and the brain sends out a signal as a response. The PNS is made up of sensory receptors and motor effectors. ( It is basically all the parts besides the brain and spinal cord.) The PNS also has cranial nerves and spinal nerves.
