Essays Tagged: "nerve impulses"

Hearing and Deafness

ear is the organ of hearing and balance in vertebrates. The ear converts sound waves in the air, to nerve impulses which are sent to the brain, where the brain interprets them as sounds instead of vib ...

(4 pages) 141 0 4.6 Jan/1997

Subjects: Humanities Essays > Health & Medicine

A simple essay on multiple sclerosis.

nown as MS, is a disease causing demylination of the white matter in the spinal cord and brain. The nerve damage slows, blocks or distorts transmission of nerve impulses. MS is characterized by period ... ailments and, therefore, years may elapse between onset and diagnosis.In MS, axon demylination and nerve fiber loss occurs in patches throughout the central nervous system. This causes a wide spread ...

(2 pages) 76 2 3.7 May/2002

Subjects: Humanities Essays > Health & Medicine > Diseases

Simple essay on Multiple Sclerosis

nown as MS, is a disease causing demylination of the white matter in the spinal cord and brain. The nerve damage slows, blocks or distorts transmission of nerve impulses. MS is characterized by period ... ailments and, therefore, years may elapse between onset and diagnosis.In MS, axon demylination and nerve fiber loss occurs in patches throughout the central nervous system. This causes a wide spread ...

(2 pages) 75 0 4.5 Jun/2002

Subjects: Humanities Essays > Health & Medicine > Diseases

Multiple sclerosis. the challenges that those who have it have when exercising and what symptoms they have that may make it harder to exercise at all. In APA form with references.

y the destruction of Myelin. The destruction of Myelin interferes with the normal transmissions of nerve impulses along the nerve fibers. Multiple Sclerosis comes with many symptoms that may prevent ... sis and ExerciseMultiple Sclerosis is the destruction of Myelin which results in interference in nerve impulses. MS is characterized by periods of exacerbation and remissions. The neurological d ...

(4 pages) 58 1 2.0 Mar/2003

Subjects: Humanities Essays > Health & Medicine > Diseases

Regulation, Mitosis, an Meiosis.

gans that produce hormones into the bloodstream. The nervous system carries messages in the form or nerve impulses throughout the body. Hormones and nerve impulses can bring about changes in the organ ...

(1 pages) 79 0 4.2 May/2003

Subjects: Science Essays > Biology

Mixed Short Biology Essays.

gans that produce hormones into the bloodstream. The nervous system carries messages in the form or nerve impulses throughout the body. Hormones and nerve impulses can bring about changes in the organ ... regulatory system and help maintain homeostasis within the body. The nervous system is a network of nerve cells that carry electrochemical impulses through nerve fibers throughout the body. It regulat ...

(4 pages) 109 0 4.3 Jun/2003

Subjects: Science Essays > Biology

Ion channels

is important in the proper functioning of many biological processes such as muscles contraction and nerve impulses. Ion channels serve a wide variety of critical functions in cells of every tissue in ...

(6 pages) 42 0 0.0 Mar/2004

Subjects: Science Essays > Biology

Sound: More Than What You Hear

object in all directions. When the waves enter our ears, our organs of hearing translate them into nerve impulses. The impulses travel to the brain, which interprets them as a sound. The term sound a ...

(18 pages) 115 0 3.9 Mar/2004

Subjects: Science Essays

Muscle Fatigue

imits muscle contraction, which causes muscle fatigue. (Mullick) During muscle fatigue, feedback of nerve impulses from the fatigued muscles interrupts on a part of the reticular formation and causes ... our muscle.Peripheral muscle fatigue involves the motor units, such as motor neurons, peripheral nerves, motor endplates, and muscle fibers. There are two different sites where repeated contraction ...

(2 pages) 52 0 4.8 Apr/2004

Subjects: Science Essays > Biology > Human Biology

Cardiovascular System

nal system is pushed along quicker due to the increased action of your muscles and the influence of nerve impulses, which help to squeeze blood out of your veins. This increase in the rate of flow thr ...

(2 pages) 38 0 3.0 Feb/2005

Subjects: Humanities Essays > Health & Medicine

The Effect of Alcohol on the Heart Rate of a Gammarus

ean is placed in alcohol it's heart rate is known to decrease. This is due to the interference with nerve pulses. For example, an experiment was conducted when a Daphnia was placed in ethanol. The hea ... ment was conducted when a Daphnia was placed in ethanol. The heartbeat of a Daphnia is regulated by nerve impulses, which are generated by pacemaker neurons located in the cardiac ganglion. These impu ...

(3 pages) 17 0 5.0 Apr/2006

Subjects: Science Essays > Biology

Perception

ved by the brain from the senses. Everything which we see around us are converted by the brain into nerve impulses, and these impulses are the only information the brain receives as it has not direct ...

(7 pages) 317 0 2.5 Sep/2006

Subjects: Social Science Essays > Psychology > Sensation & Perception

Bioethics

with surface electrodes. This was followed in 1853 by Hermann von Helmholtz measuring the speed of nerve impulses with electrical stimulation and a mechanical twitch recorder; this results in pioneer ... ds placed inside an induction coil. This results in Kolin being the first to magnetically stimulate nerves (a frog sciatic-nerve) in 1959. By 1965, R.G. Bickford & B.D. Fremming are the first to m ...

(9 pages) 44 0 4.0 Nov/2001

Subjects: Social Science Essays > Psychology

Nursing Skills

this temperature, and if you are too hot or cold, the control centre called the hypothalamus sends nerve impulses to the skin. (Watson 2005).The core temperature (the temperature of organs within the ...

(9 pages) 70 0 5.0 Jan/2008

Subjects: Humanities Essays > Health & Medicine

Upper and Lower motor neurons

Upper motor neurons and lower motor neurons act to carry nerve impulses from the brain out to the muscles in the body.Upper motor neurons supply input to the ... in the brain stem and the spinal cord, and their axons extend from the motor nuclei of the cranial nerves to skeletal muscles. These motor neurons synapse with the upper motor neurons, carrying on th ... re carrying.Motor neurons descend the spinal cord in tracts. These tracts are for the conduction of nerve impulses. The sensory tracts ascend towards the brain, and the motor tracts descend, to the re ...

(2 pages) 14 0 5.0 May/2008

Subjects: Science Essays > Biology > Human Biology

Four parts of the brain, and their functions

, and at the top back of the brain and is associated with They are connected with the processing of nerve impulses related to the senses, such as touch, pain, taste, pressure, and temperature. They al ...

(2 pages) 29 0 5.0 Feb/2009

Subjects: Science Essays > Biology > Human Biology

Efficacy of Articaine: A New Amide Local Anesthetic

pain control. And like the above-mentioned anesthetics, articaine reversibly inhibits conduction of nerve impulses by blocking sodium and potassium channels during propagation of the nerve action pote ...

(2 pages) 747 0 0.0 Jul/2009

Subjects: Humanities Essays > Health & Medicine