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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 are tiny pulses of electricity that move along a nerve fiber?
Nerve signals
Thats what my crossword was.
What weighs about 3 pounds feels like soft butter and is the command center of your body?
The brain weighs about 3 pounds, feels like soft butter, and is the command center of your body.
What part of the nervous system is responsible for the rest and digest response of the body?
Parasympathetic
What statements are correct in regard to the nervous system?
The brain and spinal cord make up the CNS (central nervous system).
Which nerves carry sound impulses from the inner ear of the brain?
The auditory nerve carries auditory impulses to the brain.
What advantage does the nervous system have over the endocrine system?
The messages of the nervous system are relayed by nervous impulses, which are very fast and short-acting. In contrast, the messages of the endocrine system are sent via chemical messengers (hormones) distributed by the circulatory system. This distribution in your blood is much slower than the electrical impulses of the nervous system.
What are the 2 main parts of the nervous system and what do they do?
The peripheral and central nervous systems (PNS and CNS) are the two major branches of the nervous system.
The CNS is where the most sophisticated processing occurs. It is where information from all senses are integrated in time; where memories are formed and recalled; where movement commands are planned and sent to lower motor neurons; where emotion is regulated; where mental thoughts originate; and where your personality comes from.
The PNS system acts as a 'mediator' between the body and the central nervous system. It conveys motor commands to muscle groups and it relays sensory information to the central nervous system. The peripheral nervous system also 'micro-manages' things going on in the body like how fast the heart beats; or how much acid to secrete in order to digest that hamburger. For some bodily functions, the peripheral nervous system handles this completely independently from the central nervous system (digestive processes is a pertinent example). While for other functions, the central nervous system will influence it. The extent of influence usually depends on how complicated the behavior needs to be. If you are fleeing in panic from a rabid dog, for example, your brain will boost your body's ability to run and think quickly. It will do this by regulating bodily systems related to heart rate, blood pressure, and hormone secretion - all via the PNS.
What are the three common degenerative disease of the nervous system?
Three Diseases of the nerve system would be Alzheimer Disease, Broca Aphasia and Cerebello-Olivary Degeneration of Holmes. Hope it helpsss.
What do you mean by nervous system?
Nervous system is a system present in the body of almost all living organisms.it consists of the brain,the spinal cord and network of neves in humans.the main function of nervous system is to conduct,transport and react to the various messages,impulses and various biological processes are dependent on this system directly or indirectly.
Where in the medulla are the neurons that set the basic respiratory rhytm?
The answer is Ventral Respiratory Group or VRG
It contains the rhythm generators "whose output drives respiration".
Hoehn, Marieb Human Anatomy & Physiology
Eighth Edition pg. 835
Two part of brain that control autonomic nervous system?
the medulla oblongata is what controls the sympathetic and parasympathetic nervous system.
What connects your body to the central nervous system?
The central nervous system. Or CNS. you so funny
Path way of the message to the nervous system?
The stimuli will be picked up by the sensory neurons then nerve impulses travel to your spinal cord. Those nerve impulses return to motor neurons that will react (like you pull your hand away, or you yell) as you react the nerve impulses travel to your brain.
In the human nervous system what is synapse?
It is the junction between terminal part of one axon and the dendrite of the adjacent neuron .Synapse helps in the transmission of impulses from one neuron to another neuron.
What is the neuron that carries impulses away from the central nervous system?
sensory neurons trust me i know this one for sure i went on over 29 websites to find this out
What makes up the automatic nervous system?
I think you mean the 'Autonomic' nervous system. It is responsible for regulating internal organs, among other things.
What is the Alternative name for sensory nerve ending?
The other name for the sensory nerve is sensory neuron. These are nerve cells that transmit sight, sound, and feelings.
What are neurotransmitters which are found in the nervous system?
Nerve/command signals are sent from one place to another in the body through conductors called nerve fibers. These conductors can hand-off/relay these signals to other nerve fibers, or to organs, such as muscles, that take action on the command. Neurotransmitters are chemical substances located where the nerve hands off these signals. They enable the signal to pass the nerve carrying the signal to the receiving fiber.
What germ layer does the tissue of the peripheral nervous system develop from?
All nervous tissue arise from ectoderm. Whether central or peripheral. It is anatomical division. Functionally all nervous cells are connected to each other.
Which of the following is a way in which somatic and autonomic nervous systems are similar?
The somatic nervous system is the voluntary part of the brain and it operates under conscious control. The autonomic nervous system is the part of the brain that is involuntary, and that humans have no control over.
How can brains and nerves send signal to your body?
The brain can get signals, add them up, and signal back for action in a split second. Different parts of the brain do different things.
The medulla, at the top of the signal cord, controls nerves that are in charge of certain muscles and glands. The medulla keeps your heart beating, your lungs taking in air and your stomach digesting food.
The cerebellum controls body movement and balance. The cerebellum is where is where thinking, learning, remembering, deciding and awareness take place. The sensation of seeing, smelling, tasting and touching are centred here. So are the body feelings.
The so far have learnt that the messages travel through the nervous system -to and from the brain- are weak electrical charges. The billions of nerve cells in the body form a huge network that leads to the spine. Along the way, nerves from different parts of the body come together in thick bundles. A thick cable of nerves runs up the hollow of the spine to brain. One set of the nerves in the cable carries messages from senses to brain. Another set carries messages from the brain to the muscles and glands. The brain sorts out the signals and makes the right connections. The brain can get signals, add them up, and signal back for action in a split second. Different parts of the brain do different things.
The medulla, at the top of the signal cord, controls nerves that are in charge of certain muscles and glands. The medulla keeps your heart beating, your lungs taking in air and your stomach digesting food.
The cerebellum controls body movement and balance. The cerebellum is where is where thinking, learning, remembering, deciding and awareness take place. The sensation of seeing, smelling, tasting and touching are centred here. So are the body feelings.
The so far have learnt that the messages travel through the nervous system -to and from the brain- are weak electrical charges. The billions of nerve cells in the body form a huge network that leads to the spine. Along the way, nerves from different parts of the body come together in thick bundles. A thick cable of nerves runs up the hollow of the spine to brain. One set of the nerves in the cable carries messages from senses to brain. Another set carries messages from the brain to the muscles and glands. The brain sorts out the signals and makes the right connections.
What is called the study of nervous system its functions and disorder?
Neurology is the study of the nervous system, including the brain.
