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Medical Physiology PHSL 1010: Exam 2
Exam fully solved & updated 2025-
2026(latest version verified for accuracy)
(Questions + Answers) Solved 100%
Correct!! Questions and Correct Answers/
Latest Update / Already Graded
T-tubules (triads)
Ans: Depolarizing currents pass to the sarcoplasmic reticulum
via:
Troponin
Ans: The muscle protein that binds to Ca++ during excitation -
contraction coupling is:
One muscle cell only
Ans: A skeletal muscle fiber comprises:
Slow-twitch fibers have more myoglobin than fast-twitch AND Slow-
twitch fibers are more fatigue-resistant than fast-twitch
Ans: Fast-twitch muscle fibers differ from slow-twitch fibers in
which way(s)?
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Smooth muscle cells have only one nucleus AND Smooth muscle
contracts more slowly than skeletal muscle
Ans: Smooth muscle differs from skeletal muscle in which
way(s)?
Z lines (from striated [cardiac & skeletal] muscles)
Ans: Smooth muscle dense bodies perform a similar function
to:
Inside sheets of smooth muscle
Ans: Parasympathetic ganglia that aid in control of smooth
muscle contraction are located:
Ca++ enters the cell, Ca++ binds to calmodulin, myosin heads are
phosphorylated, myosin binds to actin
Ans: The correct sequence of events in smooth muscle
contraction is:
Cardiac muscle cells have only one nucleus and are branched
All rights reserved © 2025/ 2026 |
Medical Physiology PHSL 1010: Exam 2
Exam fully solved & updated 2025-
2026(latest version verified for accuracy)
(Questions + Answers) Solved 100%
Correct!! Questions and Correct Answers/
Latest Update / Already Graded
T-tubules (triads)
Ans: Depolarizing currents pass to the sarcoplasmic reticulum
via:
Troponin
Ans: The muscle protein that binds to Ca++ during excitation -
contraction coupling is:
One muscle cell only
Ans: A skeletal muscle fiber comprises:
Slow-twitch fibers have more myoglobin than fast-twitch AND Slow-
twitch fibers are more fatigue-resistant than fast-twitch
Ans: Fast-twitch muscle fibers differ from slow-twitch fibers in
which way(s)?
All rights reserved © 2025/ 2026 |
, Page |2
Smooth muscle cells have only one nucleus AND Smooth muscle
contracts more slowly than skeletal muscle
Ans: Smooth muscle differs from skeletal muscle in which
way(s)?
Z lines (from striated [cardiac & skeletal] muscles)
Ans: Smooth muscle dense bodies perform a similar function
to:
Inside sheets of smooth muscle
Ans: Parasympathetic ganglia that aid in control of smooth
muscle contraction are located:
Ca++ enters the cell, Ca++ binds to calmodulin, myosin heads are
phosphorylated, myosin binds to actin
Ans: The correct sequence of events in smooth muscle
contraction is:
Cardiac muscle cells have only one nucleus and are branched
All rights reserved © 2025/ 2026 |
