About The Medical Condition Muscle Fiber, Fast-Twitch

ClusterMed

Find the definition of the medical term Muscle Fiber, Fast-Twitch. Muscle Fiber, Fast-Twitch defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.

Muscle Fiber, Fast-Twitch

Muscle Fiber, Fast-Twitch Medical Condition Defined & Explained
Muscle Fiber, Fast-Twitch Medical Condition

What's The Definition Of The Medical Condition Muscle Fiber, Fast-Twitch?

Skeletal muscle fibers having high myofibrillar ATPase activity, high glycolytic enzyme activities, and an intermediate glycogen content which produce a fast twitch. There are two types. Fast fatigable fibers, also called white fibers, have a low myoglobin content, and a small mitochondrial content, and fatigue rapidly due to their limited glycogen content and low capacity for oxidative metabolism. Fast fatigue-resistant fibers, also called red fibers, have a large mitochondrial content and a high myoglobin content, related to their resistance to fatigue. (From Best, Physiological Basis of Medical Practice, 12th ed, p100)

More Medical Conditions

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Medical Conditions Definitions Of The Day

  • Glybutamide ‐ A sulfonylurea antidiabetic agent with similar actions and uses…
  • Leukocytosis ‐ A transient increase in the number of leukocytes in a…
  • Urinary Tract Neoplasms ‐ Tumors or cancer of the URINARY TRACT in both male and female.…
  • Cypovirus ‐ A family of unenveloped RNA viruses with cubic symmetry. The…
  • Fluoroimmunoassay, Polarization ‐ Fluoroimmunoassay where detection of the hapten-antibody reaction…
  • Phenethylazocine ‐ An opioid analgesic with actions and uses similar to MORPHINE.…
  • Enamel Cuticles ‐ A hard thin translucent layer of calcified substance which envelops…
  • Enzyme Mapping, Restriction ‐ Use of restriction endonucleases to analyze and generate a physical…
  • Neuroenteric Cyst ‐ Congenital malformations of the central nervous system and adjacent…
  • Kinase Cascades, MAP ‐ An intracellular signaling system involving the MAP kinase cascades…
Medical Conditions