0
Calcium is actually the main cation (positively charged ion) responsible for muscle contraction. Most people think it is Sodium or Potassium. Sodium is an anion (negatively charged ion) which controls your body's saturation (all the way down to the cellular level) and also aids in transporting minerals. What happens when you are dehydrated? Your muscles cramp up. Potassium is a cation which creates electricity. In muscle movement, sodium and potassium create a channel in which sodium rushes in and potassium rushes out causing the muscle fiber membrane to become more positively charged, triggering an action. This ultimately would not be possible without calcium, which starts the whole process. For more information check out the following link.
References: http://en.wikipedia.org/wiki/Muscle_contraction
AAOS Emergency Medical Technician Book
Add your answer:
Earn +20 pts
What is a contraction in which the muscle shorten and work is done?
A concentric contraction is when the muscle shortens as it exerts force. This type of contraction is commonly associated with lifting weights or performing a bicep curl, for example.
The portion of the nervous system that most closely associated with the contraction of cardiac muscle is The?
The portion of the nervous system that is most closely associated with the contraction of the cardiac muscle is the autonomic nervous system.
The portion of the nervous system that is most closely associated with the contraction of the cardiac muscle is the?
autonomic nervous system
Constant contraction of a muscle is?
constant contraction of a muscle is called the muscle tone
What is muscle contraction without muscle shortening is what kind of contraction?
Isometric contraction. This type of contraction occurs when the muscle generates tension without changing its length, such as when holding a weight in a fixed position.
What is the difference between isotonic and isometric contractions?
An Isotonic muscle contraction is a muscle contraction that makes your limbs move whereas an Isometric contraction is a muscle contraction where the limbs stay static
What does the contraction of the gastrocnemius muscle usually result in?
type of contraction of gastrocnemius muscle?
Describe the events of muscle cell contraction?
6 steps in a muscle contraction
What factors affect muscle contraction?
the degree of muscle stretch is affect the strength or force of skeletal muscle contraction
The muscle decreases in muscle length during contraction but tension is the same?
Isotonic contraction
What is a concentric contraction?
concentric contraction is atype of muscle contraction which the muscle shortens while genrating aforce The muscle shortens to produce movement. A muscle contraction in which shortening occurs.
What component is not essential for the process of muscle contraction?
Actomyosin does not seem to be essential for the process of muscle contraction. The most important elements of muscle contraction include potassium and ATP.
