The contraction phase of a muscle twitch has a shorter duration than the relaxation phase.

Answer the following statement true (T) or false (F)


True

Anatomy & Physiology

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What characteristic do simple diffusion and facilitated diffusion share?

A. Both require cellular energy for the transport of substances. B. Both move a substance from a region of higher concentration to one of lower concentration without using cellular energy. C. Both move water across a semipermeable membrane. D. Both require a special carrier molecule to move substances across the membrane.

Anatomy & Physiology

In which layer does one find numerous blood capillaries that supply oxygen and glucose to muscle cells?

A. Endomysium B. Perimysium C. Epimysium D. Fascia E. Sarcolemma

Anatomy & Physiology

Atoms or molecules which carry a charge are called ________

A) Ions B) Elements C) Protons D) Neutrons

Anatomy & Physiology

Fast fibers

A) have low resistance to fatigue. B) rely on aerobic metabolism. C) have many mitochondria. D) have twitches with a very brief contraction phase. E) have low resistance to fatigue and quick twitches.

Anatomy & Physiology