quora
Free

Process of muscle contraction - Essay Example

Comments (0) Cite this document
Summary
The process of muscle contraction involves a series of biochemical reactions in the body of a living organism. The order of events leading to contraction is initiated in the central nervous system, as either voluntary activity from the brain or as reflex activity from the spinal cord. …
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER92.7% of users find it useful
Process of muscle contraction
Read TextPreview

Extract of sample
"Process of muscle contraction"

In this process of muscle contraction, motor neuron in the ventral horn of the spinal cord gets activated, followed by an action potential which passes outward in a ventral root of the spinal cord. The axon branches to supply a number of muscle fibers called a motor unit, and the action potential is conveyed to a motor end plate on each muscle fiber. At the motor end plate, the action potential initiates the release of packets or quanta of acetylcholine into the synaptic clefts on the surface of the muscle fiber. Acetylcholine causes the electrical resting potential under the motor end plate to change, and this in turn initiates an action potential which passes in both directions along the surface of the muscle fiber. The action potential spreads inside the muscle fiber at the opening of each transverse tubule onto the muscle fiber surface. At every point where a transverse tubule touches part of the sarcoplasmic reticulum, it causes the sarcoplasmic reticulum to release Ca++ ions which are critical in the overall contraction process. The last course of action calcium ions result in movement of troponin and tropomyosin on their thin filaments, and this enables the myosin molecule heads to “grab and swivel” their way along the thin filament. This is the driving force of muscle contraction. Read More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Process of muscle contraction Essay Example | Topics and Well Written Essays - 250 words”, n.d.)
Retrieved from https://studentshare.org/biology/1638992-process-of-muscle-contraction
(Process of Muscle Contraction Essay Example | Topics and Well Written Essays - 250 Words)
https://studentshare.org/biology/1638992-process-of-muscle-contraction.
“Process of Muscle Contraction Essay Example | Topics and Well Written Essays - 250 Words”, n.d. https://studentshare.org/biology/1638992-process-of-muscle-contraction.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
CHECK THESE SAMPLES - THEY ALSO FIT YOUR TOPIC
Muscle Dysmorphia
The MD diagnostic criteria include men with levels of muscularity and strong desires to increasing musculature, excessive weight lifting
2 Pages(500 words)Research Paper
Muscle Dysmorphia
The primary audience for the proposed program will be youths of both genders at the Gym facility at the university of Florida. The disorder normally affects adolescents, and the mean age of occurrence has been stipulated to be 20 year. The audience for the program will
1 Pages(250 words)Essay
Social Contraction vs. Ethical Egoism
Some of the main examples include social contraction theory and ethical egoism. However, each theory requires an analysis so as to declare it redundant or otherwise. Social contract theory recognizes that human beings value their self interests (Shafer-Landau 189).
6 Pages(1500 words)Essay
American muscle cars
This makes their authenticity and the credibility of their work beyond any reasonable reproach considering that each one of them is both a writer and a technical person in the motor word
3 Pages(750 words)Essay
SMA (Smooth Muscle Antigen)
These muscles contract to move and digest food, absorb nutrients and expel waste from the system. These muscles are controlled by the unconscious part of the brain, unlike the
4 Pages(1000 words)Research Paper
Literature review of supplements and erogoeinc aids used by cycling athletes
(Jeukendrup et al. 2000). In a study conducted by White et al. 1984 the measured the physiological impact of 24 hours cycling race on a highly trained cycling athlete (23 years old, weighting 73 kilograms and 195 centimeters tall). The cyclists covered 694 kilometers at an average speed of 28.9 kilometers/h with average oxygen consumption of 55 percents of the VO2 max.
16 Pages(4000 words)Literature review
Contraction in Smooth Muscle Cells compared to Contraction in Skeletal Muscle Cells
Any movement of even a body part is actually manifestation of contraction of these skeletal muscles transmitted to the skeleton. While contraction is an essential property of muscles, the smooth muscles also contract in a similar manner, the only difference being these contractions are not controlled by volition.
5 Pages(1250 words)Essay
Muscle movement
The skeletal muscles also known as the striated muscles work in conjunction with the bones to impart movement to the body. They do so by alternate contraction and relaxation. Bones provide the points of
3 Pages(750 words)Essay
Progressive Muscle Relaxation [PMR]
A continuous stress without reprieve leads to distress, which in turn leads to physical symptoms such as elevated blood pressure, headaches, chest pains, stomach upset and sleeping problems.
7 Pages(1750 words)Term Paper
Skeletal Muscle Contraction
Skeletal muscle fibres are the voluntary group of muscles that are range from the small muscles in the eyes to the large and powerful muscles in the calf that cause leg movements. Anatomically skeletal muscles are composed of a number of fibres and each fibre is then further composed of smaller sub-units.
8 Pages(2000 words)Essay
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Essay on topic Process of muscle contraction for FREE!
logo footer
Contact us:
+16312120006
Contact Us Now
FREE Mobile Apps:
  • StudentShare App Store
  • StudentShare Google play
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us