Questions: Muscle fibers in a skeletal muscle form bundles called endomysium fascicles myofibrils sarcomeres Depends on oxygen delivery and aerobic mechanisms. Slow (oxidative), fatigue-resistant fibers Fast (glycolytic), fatigable fibers

Muscle fibers in a skeletal muscle form bundles called endomysium fascicles myofibrils sarcomeres Depends on oxygen delivery and aerobic mechanisms. Slow (oxidative), fatigue-resistant fibers Fast (glycolytic), fatigable fibers
Transcript text: Muscle fibers in a skeletal muscle form bundles called $\qquad$ endomysium fascicles myofibrils sarcomeres Depends on oxygen delivery and aerobic mechanisms. Slow (oxidative), fatigue-resistant fibers Fast (glycolytic), fatigable fibers
failed

Solution

failed
failed

The answer to the first question is "fascicles."

Explanation for each option:

  • Endomysium: This is a type of connective tissue that surrounds individual muscle fibers, not bundles of muscle fibers.
  • Fascicles: Correct. Fascicles are bundles of muscle fibers within a skeletal muscle.
  • Myofibrils: These are the contractile elements within a muscle fiber, not bundles of muscle fibers.
  • Sarcomeres: These are the basic contractile units within myofibrils, not bundles of muscle fibers.

The answer to the second question is "Slow (oxidative), fatigue-resistant fibers."

Explanation for each option:

  • Slow (oxidative), fatigue-resistant fibers: Correct. These fibers rely on aerobic metabolism and are adapted for endurance and continuous activity, depending on oxygen delivery.
  • Fast (glycolytic), fatigable fibers: Incorrect. These fibers rely on anaerobic metabolism and are adapted for short bursts of activity, not depending primarily on oxygen delivery.

In summary, the answers are:

  1. Fascicles
  2. Slow (oxidative), fatigue-resistant fibers
Was this solution helpful?
failed
Unhelpful
failed
Helpful

Questions asked by other users

failedAnswered
Choose SSS, SAS, or neither to compare these two triangles.
failedAnswered
Given trapezoid ABCD with AB perpendicular to DC; also, M and N are midpoints of AD and BC respectively. Given: AB=8.2 and MN=12.4. Find DC.
failedAnswered
In his Atlanta speech of 1895, Booker T. Washington called for political equality, encouraged blacks to adjust to segregation, opposed vocational education for blacks, fought against segregation, continued the abolitionist political tradition.
failedAnswered
A structure that helps prevent food from entering the pharynx prematurely is the epiglottis.
failedAnswered
a. Set up an integral for the length of the curve. b. Graph the curve to see what it looks like. c. Use a grapher's or computer's integral evaluator to find the curve's length numerically. x=2 sin y, (π/6) ≤ y ≤ (5π/6) a. The integral is (Type an exact answer, using π and radicals as needed.)