Short Essay On Nervous System

Short Essay On Nervous System-22
Neurotransmitters trigger the receptors on the next nerve cell dendrites to produce a new electrical current.Different types of nerves use different neurotransmitters to convey impulses across the synapses.The axon is the long membrane projection that transmits the neural impulse at a distance to other neurons, to muscle cells and to other effector cells.

Tags: Self Introduction In EssayWord For Problem SolvingDissertation Internet-Based InstructionApus History Essay HelpAssign Macro40 Model Essays 2nd EditionCreative Essay PromptsMaking A Small Business PlanHomework Agenda App

Both nervous system and the endocrine system are considered integrative systems.

This designation stems from the fact that both systems control and regulate biological functions and act at distance, receiving information from organs and tissues and sending effector commands (nervous impulses or hormones) to organs and tissues, thus integrating the body.

Some of the impulses stimulate the next nerve cell, whereas others inhibit it.

White matter contains relatively very few neurons and consists mainly of axons that are wrapped with many layers of myelin and of the oligodendrocytes that make the myelin. (Myelin speeds the conduction of nerve impulses—see Nerves.) Nerve cells routinely increase or decrease the number of connections they have with other nerve cells.

Afference is the conduction of sensory impulses and efference is the conduction of effector impulses (impulses that command some action in the body). Nerves are axon-containing structures which are home to a large number of axons and which are covered by connective tissue.

Nerves connect neural nuclei and ganglia with tissues.

The structures that form the nervous system can be divided into the central nervous system (CNS) and the peripheral nervous system (PNS).

The organs of the CNS are the brain (cerebrum, brainstem and cerebellum) and spinal cord. In addition to these organs, the meninges (dura-mater, arachnoid and pia-mater) are also a part of the nervous system, since they cover and protect the encephalon and the spinal cord.

Neurons located at specific points can may have distant axonal terminations and can also receive impulses from the axons of distant neurons.

An example of this are the inferior motor neurons in the spinal cord, since their axons can transmit information to the extremities of the lower limbs, triggering foot contractions.


Comments Short Essay On Nervous System

  • Compare and contrast the two divisions of the Autonomic.

    Compare and contrast the two divisions of the Autonomic Nervous System; the sympathetic and parasympathetic divisions. - Answered by a verified Writer…

  • Essay Endocrine & Nervous System Comparison

    Essay Endocrine & Nervous System Comparison…

  • Nervous System Essays Examples, Topics, Titles, & Outlines

    View and download nervous system essays examples. Also discover topics, titles, outlines, thesis statements, and conclusions for your nervous system essay.…

  • Overview of the Nervous System - Brain, Spinal Cord, and.

    The nervous system is an extraordinarily complex communication system that can send and receive voluminous amounts of information simultaneously. However, the system is vulnerable to diseases and injuries, as in the following examples Nerve cells can degenerate.…

  • Central nervous system essay conclusion – White Rice.

    Central nervous system research paper. Research papers. Behavior then he can be sure to find answers in organizations. Ap language rhetorical analysis essay writer or academic help create a central nervous system or cns infection are the _____.…

  • Autonomic Nervous System Essay Examples Kibin

    Stuck on your essay? Browse essays about Autonomic Nervous System and find inspiration. Learn by example and become a better writer with Kibin’s suite of essay help services.…

  • The Nervous System - Biology Questions

    The Nervous System Review - Image Diversity oligodendrocytes Schwann cells; 15. What are some diseases in which the axonal myelin sheath is progressively destroyed? Multiple sclerosis is a severe disease caused by progressive destruction of the myelin sheath of the central nervous system. Guillain-Barré disease is due to the destruction of the myelin sheath in the peripheral nervous system.…

  • Essay on Central Nervous System - 1898 Words Cram

    Essay The Nervous System And Central System. The Nervous System The nervous system is one of the most important systems in the human body because it sends out messages from the brain into the body parts and coordinates the body activities.…

  • Nervous system - Better Health Channel

    The nervous system uses electrical and chemical means to help all parts of the body to communicate with each other. The brain and spinal cord make up the central nervous system. Nerves everywhere else in the body are part of the peripheral nervous system. The nervous system helps all the parts of…

  • Nervous system free essay sample - New York Essays

    Nervous system - essay example for free Newyorkessays - database with more than 65000 college essays for studying 】…

The Latest from ©