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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 nervous system recieves information from your senses analyzes it and decides how your body should respond some decisions are made in our brain and some are spinal reflexes.The crebrum is responsible for thoughts and learning processes.The cerebellum controls uoluntary muscle movement.The brain stem takes care of all involuntary functions.
Fact:All the other systems in your body will not work without the nervous system.
What cranial nerves are not associated with the brainstem?
The olfactory bulbs [I] and the optic nerve [II]
How does the hormones and the nervous system interact?
Hormones regulate pretty much everything you can think of. From growth, to metabolism, to digestion, to stress responses, to the ability to reproduce - including the initial libido that gets you there, how awake or sleepy you are, all are related to hormones.
Attached is a link that lists hormones and their functions.
The bundle of the nerve fibers is a collection of the threadlike extension of the nerve cell that consists of the myelin sheath and axon in the nervous system. There are nerve fibers in the peripheral nervous system and the central nervous system.
What are some examples of central nervous system depressants?
include a wide range of drugs such as alcohol, narcotics, barbiturates (Amytal, Nembutal, Seconal), benzodiazepines (Ativan, Halcion, Librium, Valium, Xanax), chloral hydrate, and methaqualone (Quaaludes).
Collection of nerve cell bodies found outside CNS?
In the peripheral nervous system, which is outside the central nervous system (CNS), collections of nerve cell bodies are called ganglia.
What does central nervous system includes?
The central nervous system has two organs, the brain and the spinal cord.
What system controls muscles and regulates body activity?
The nervous system controls muscles and glands by electrical impulses.
What membranes are between the central nervous system and its bony coverings?
The meninges which are composed of the dura mater, arachnoid membrane, and the pia mater.
What part of the nervous system controls strong emotions such as fear and anger?
It depends on what kind of feelings. In ancient times, before even I was born, people believed that the heart was the center of all human emotions. (They also believed that the brain served no actual purpose and, in some cases, they are correct.)
The cerebellum (little brain) has been implicated in the regulation of many differing functional traits such as affection, emotion and behavior. The posterior cerebellum has activation linked to happiness.
As far a feelings (touch, taste, smell, etc.) the sensory endings of the peripheral nervous system is involved. The brain also plays a part as it interpreters these feelings.
How does the cardioscular system and the nerves system work together?
The autonomic nervous system regulates the cardiovascular system. The parasympathetic division innervates the heart via the vagus nerve. The sympathetic division also innervates the heart, but additionally, it supplies innervation to the smooth muscle lining blood vessels. The sympathetic division has a substantial effect on blood pressure, and on local blood flow, via constriction of arterioles.
The cardiovascular system is important to maintain supply of oxygen and nutrients, and removal of wastes, from the nervous system.
What is the function of the autonomic nervous system?
The function of the autonomic nervous system is to control involuntary actions, or body functions that must operate even without conscious awareness of those functions. It regulates heart activity, acting like brakes and accelerators to decrease or increase the heart rate.
What carries mssages from the central nervous system to other parts of the body?
peripheral nervous system
What carries impulses toward the neuron cell body?
Sensory neurons, also known as Afferent neurons carry information toward the CNS.
I don't know that's what im trying to figure out.
Which cranial nerve is responsible for equilibrium?
The 8th.
Hey - I remembered it, the vestibulocochlear nerve.
What part of the brain routes nerve impulses from your senses?
Most nerve impulses from our senses are routed through the: Thalamus-
Cranial nerves
Cranial Nerves only originate in the brain and carry messages to and from structures in the head and neck.
The cells in the nervous system that receive and send neurotransmitter messages?
impulses travel to and from the central nervous system allowing the brain and spinal cord to control all your other body systems
Short term effects of exercise?
However different types of exercise will have different effects upon the muscles exercised. For example high intensity low duration exercise will produce strength, size and power gains while low intensity long duration exercise will produce endurance type benefits.Tone; Refers to the state of readiness of a muscle. This is the state that a muscle is in when it is relaxed and how able it is to respond to its task. An unused, untrained muscle will have poor tone and will respond slowly and with greater difficulty to a task than a trained muscle.Posture; Refers to the way in which we hold our bodies when sitting, walking or running. Regular exercise performed correctly will encourage good posture which enables muscles to work efficiently and will help to prevent injuries.Hypertrophy; Is when a cell, in this case a muscle cell, increases in size through growth. Extreme hypertrophy may result in the cells splitting to create new ones.Atrophy; Is when a muscle shrinks due to injury or lack of use. so that is the short term effect of exercise on the muscular system.
What does the nervous system compose of?
peripheral nervous system
the peripheral nervous system
periphera
The peripheral nervous system branches from the central nervous system
It is called the Peripheral Nervous System(PNS).
Why is it called the functional unit of the nervous system?
A neuron.
^ he is asking why, not what
^it's (neuron) called so, because the nervous system is composed mainly of the brain, spinal cord and nerves (neurons). since most of the nervous system is made of neurons, they are called the structural unit of NS, meaning that the NS is composed of these neurons.
