Preview

Muscular System Research Paper

Good Essays
Open Document
Open Document
542 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Muscular System Research Paper
The Neuromuscular System function to achieve movement at the joints
Kinesiology

Romaine Campbell
120026
BTT2A
G.C. Foster Collage of Physical Education & Sports
Mr.
April 13, 2015

What is the Neuromuscular System?
According to research the neuromuscular system is to make the body move, a signal travels along neurons nerve cells from the brain to the spinal cord. There, "lower motor neurons" pass the message on to the muscles. The end of every lower motor neuron releases a chemical, which is received by receptors in the muscle tissue. Once enough of the chemical has been received, the muscle is able to move. Sometimes this process malfunctions and a person develops a neuromuscular disorder. Symptoms include muscular weakness, spasms,
…show more content…
The neuromuscular control system consist of a complex interaction between the sensory, motor, and central integration and processing centers of the central nervous system (CNS), collectively termed the sensorimotor system. Because of the relative complexity of neuromuscular control, we present this information using a whole-part-whole model, with the objective of providing the reader with an understanding of the function of each “subsystem” in the sensorimotor system, and then how the subsystem are integrated to maintain functional joint stability. (Myers & Lephart, …show more content…
The space between the motor neuron and the skeletal muscle cell is simply referred to as a synapse. More specifically, the synapse between a motor neuron and a skeletal muscle cell is referred to as a myoneural or neuromuscular junction. If you break down these terms, the names will make better sense. 'Myo '- means muscle, and 'neuro '- refers to nerves. Regardless of the name, the synapse is a real space across which the excitatory impulse must travel before the muscle contracts.
Synaptic transmission includes all the events within the synapse leading to excitation of the muscle. Let me make a quick note that other synapses occurs between other cells - for example, nerve to nerve and nerve to gland. For example, the adult human brain is thought to contain 100-500 trillion synaptic connections, and those are in between neurons. In this lesson, we will describe the anatomy of a neuromuscular junction and then discuss the events of synaptic transmission.
Think of the neurotransmitter-receptor relationship as a lock and a key, where only one key will fit that lock. The synaptic cleft refers to the space between the two cells and is only about 20 nanometers wide. It is very

You May Also Find These Documents Helpful

  • Satisfactory Essays

    The Neuromuscular junction uses synapses to connect the muscular system with the muscular system. A nerve impulse is sent from the brain down to the motor neuron by way of the axon. Acetylcholine is released after the vesicles break open. Sodium channels are opened from Acetylcholine that bonds to the Acetylcholine receptors. Depolarization happens when Acetylcholine causes an area of the muscle fiber to become a little more positive when it leaves the nerve and docks on receptors in the muscle membrane. Large amounts of Na+ ions enter the muscle fiber because channels open after depolarization, and an action potential then spreads throughout the muscle fiber. The thick and thin filaments of the muscle fiber can then contract…

    • 504 Words
    • 3 Pages
    Satisfactory Essays
  • Good Essays

    - Specialized junctions between cells. Allow free flow of action potentials that create muscle contractions.…

    • 716 Words
    • 3 Pages
    Good Essays
  • Good Essays

    • At the end of each motor neuron there are tiny vesicles that store chemicals called neurotransmitters that stimulate the muscle to contract.…

    • 502 Words
    • 2 Pages
    Good Essays
  • Powerful Essays

    When an impulse arrives at an axon terminal, the vesicles release the neurotransmitters into the synaptic cleft. The neurotransmitter molecules diffuse across the synaptic cleft and attach themselves to receptors on the membrane of the neighboring cell. This stimulus causes positive sodium ions to rush across the cell membrane, stimulating the second cell. If the stimulation exceeds the cell’s threshold, a new impulse begins.…

    • 1017 Words
    • 5 Pages
    Powerful Essays
  • Powerful Essays

    Skeletal muscle is under voluntary control. Nerve impulses that originate in the central nervous system cause muscles to contract. Both neurons and muscle tissue conduct electrical current by moving ions across cellular membranes. A motor neuron ends in a synapse with a muscle fiber. The neuron releases acetylcholine and transfers the action potential to the muscle tissue. The signal will travel through the tissue and trigger the contraction of individual sarcomeres. One synapse generally controls an entire muscle fiber. One motor neuron usually controls several adjacent muscle fibers. A group of fibers under the control of a single motor neuron is known as a motor unit.…

    • 830 Words
    • 4 Pages
    Powerful Essays
  • Powerful Essays

    Then, the nerve impulses pass to a nerve cell at a site called the synapse. At this site, the impulse is transmitted to the other cell. The neurotransmitters must pass through a gap between the cells. This gap is called the synaptic cleft. Through this gap, the neurotransmitters are allowed to flow out of the terminal buttons of one neuron. After the neurotransmitters are released, they pass through the synaptic cleft and are received by the dendrites of the next neuron. The neuron that sends the neurotransmitters is called the presynaptic neuron, whereas the receiving neuron is called the postsynaptic neuron.…

    • 1592 Words
    • 7 Pages
    Powerful Essays
  • Powerful Essays

    bio flashcards

    • 2781 Words
    • 18 Pages

    The somatic nervous system controls the contractions of skeletal muscles and is under voluntary control.…

    • 2781 Words
    • 18 Pages
    Powerful Essays
  • Good Essays

    Brain Functioning Table

    • 581 Words
    • 3 Pages

    Synapses are junctions between two nerve cells, consisting of a minute gap across which impulses pass by…

    • 581 Words
    • 3 Pages
    Good Essays
  • Good Essays

    The synapse is the small gap separating two neurons, the presynaptic neuron (neuron that carries the impulse to the synapse,) and postsynaptic neuron (neuron that carries the impulse away from the synapse.) It separates the axon terminals of the presynaptic neuron from the postsynaptic neuron. The synapse is made of three major parts: a presynaptic neuron, a postsynaptic neuron, and a synaptic cleft. The presynaptic neuron contains the neurotransmitters, mitochondria, endoplasmic reticulum, and other cell organelles. The postsynaptic neuron contains receptor sites for the neurotransmitters in the presynaptic neuron. The synaptic cleft is the space between the presynaptic and postsynaptic neuron.…

    • 1503 Words
    • 7 Pages
    Good Essays
  • Good Essays

    The musculoskeletal system allows and enables the body to move through a system of muscles, bones, tendons, cartilage and ligaments. Each past of the system is operated by the nervous system, which has its main control center in the brain, this creates voluntary movement such as kicking a ball. The body moves through different muscle contractions, these contractions are…

    • 1724 Words
    • 7 Pages
    Good Essays
  • Good Essays

    Synaptic transmission

    • 656 Words
    • 3 Pages

    1.Amino acid and amine neurotransmitters are synthesised in the axon terminal Peptide neurotransmitters are formed in the cell body…

    • 656 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Neuro- is nerves and transmitter can send waves that carry a signal. In other words, a neurotransmitter is sort of like a mail man, although in this case instead of being called a mail man, it is called a chemical messenger. Like a mail man, a chemical messenger can transmit signals or codes from one neuron to another. And the way that this takes place is by synapses. There are two synapses that have two different names that are allowing these neurons to communicate or send messages to one another without having to touch. And since they are transmitting these messages without touching, there is a small gap between the two synapses, called a gap junction. This so called gap junction allows for the two synpases to communicate the message being sent. There are two types of neurotransmitters, which are excitatory and inhibitor. But, in this case, we are dealing with an excitatory neurotransmitter.…

    • 911 Words
    • 4 Pages
    Good Essays
  • Powerful Essays

    Health and Social Care

    • 1982 Words
    • 8 Pages

    Again, it explains that the human muscles move in command from the brain. Single nerve cells in the spinal column called motor neurons form a long very thin extension of the single cell, called an axon. When an impulse travels down the axon to the muscle, a chemical is released at its ending. Muscles are made of long fibres connected to each other lengthways by a ratchet mechanism, that allows the two parts of an extension ladder to slide past each other,overlapping each other more, so that the muscles get shorter and fatter. When the impulses from the nerves stop, the muscle fibres slide back to their original position.…

    • 1982 Words
    • 8 Pages
    Powerful Essays
  • Good Essays

    Kkwar Myasthenia

    • 351 Words
    • 2 Pages

    Neuron and muscle are not connected to each other. There is a small gap between them. This is called neuromuscular junction. Neuron (from the brain or spinal cord) will passed action potential through axon of motor neuron to an axon terminal. Sodium ion (Na+) and calcium ion (K+) are higher concentration outside than from the inside of the muscle and neuron. Na+ and K+ want to go inside but blocked by these channels (voltage gated calcium channels and ligand gated cation channels). The negative charge turn to positive charge after the action potential is at the terminal. This causes the calcium voltage gated channel to open up and the Na+ flow inside. The inside of the terminal become more positive charge thus synaptic vesicle release acetylcholine (ACh) via exocytosis. The acetylcholine diffuse across the synaptic cleft. Acetylcholine will bind together with acetylcholine receptor (AChR) containing ligand gated cation channels on the muscle fiber causes the channel to open. The opened channel allowed Na+ to enter the muscle fiber while K+ exit muscle fiber. The process cause…

    • 351 Words
    • 2 Pages
    Good Essays
  • Powerful Essays

    EMG IEEE

    • 3887 Words
    • 13 Pages

    Movement and position of limbs are controlled by electrical signals traveling back and forth between the muscles and the peripheral and central nervous system. When pathologic conditions arise in the…

    • 3887 Words
    • 13 Pages
    Powerful Essays