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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
A small space across which an impulse travels to move from one neuron to another?
It is most definitely a synapse.
In terms of the nervous system, muscles and glands are given the generic term effector organs. Impulses are picked up from receptors, which then travel to the brain, which sends orders along the motor neurons to these effector organs. In the case of reflex actions, however, the brain is not involved, and the process is done much faster as a result.
Which system does clostridium botulinum effect?
Botulism affects many body parts because it can cause blurred vision, weak muscles, stomach cramping, nausea, and difficulty of breathing.
Is the nervous system divided into three major parts?
The nervous system is divided into two parts:
I. Central Nervous System
a. Brain
b. Spinal Cord
II. Peripheral Nervous System
a. Somatic Nervous System (voluntary muscle movements)
b. Autonomic Nervous System (involuntary muscle movements)
1. Sympathetic Nervous System (flight or fight)
2. Parasympathetic Nervous System (rest and digest)
What part of a runner's nervous system get her ready to go at the sound of the starting gun?
sympathetic
What regions does the ventral rami of the spinal nerves form nerve plexuses?
Cervical- diaphragm & muscles of shoulder & neck
brachial- deltoid muscle of shoulder, triceps & extensor muscles of forearm, flexor muscles of forearm & some muscles of hand, flexor muscles of arm, wrist & many hand muscles
lumbar- lower abdomen, buttocks, anterior thighs, and skin of anteromedial leg & thigh, adductor muscles of medial thigh & small hip muscles; skin of medial thigh & hip joint
sacral- lower trunk & posterior surface of thigh & leg, lateral aspect of leg & foot, posterior aspect of leg & foot, gluteus muscles of hip
Sensory images are images created in your head from a very detailed description of something, often using more than one of the five senses (sight, smell, taste, touch, and hearing). Also, the sensory images can be what you imagine in your head as you read the story you image what is happening in the book or poem or story its the little TV inside you.
What are the vast majority of neurons in the body and nervous system?
Intraneurons are the vast majority of cells in the body's information processing system. Located in the central nervous system, the intraneurons connect nerve cells that govern coordinating activities.
The midbrain pons and medulla oblongata are housed in the?
the brain stem; they continue upward from the spinal cord in this order: medulla, pons, midbrain.
Does the nerve belong to the peripheral nervous system?
Yes it is. Reflex arcs include at least two neurons. The sensory neurons taking information into the cord and motor neurons taking information out. This happens, for example, when you touch a hot object and your arm jerks away. Also there can be an addition neuron that is somewhat slower that "reports" the incident to the brain. It is called an interneuron. It is located between the first two.
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.
