Comprehensive Exam: BIOS255 / BIOS 255 (Latest Update 2024 / 2025) Anatomy & Physiology III with Lab | Study Guide Review Questions | 100% Correct | Grade A - Chamberlain
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Course
BIOS 255 (BIOS255)
Institution
Chamberlain College Of Nursing
Comprehensive Exam: BIOS255 / BIOS 255 (Latest Update 2024 / 2025) Anatomy & Physiology III with Lab | Study Guide Review Questions | 100% Correct | Grade A - Chamberlain
Question:
Which of the following statements best describes the meaning of a cross-bridge in the process of a muscle cont...
Comprehensive Exam: BIOS255 /
BIOS 255 (Latest Update 2024 /
2025) Anatomy & Physiology III with
Lab | Study Guide Review Questions
| 100% Correct | Grade A -
Chamberlain
Question:
Which of the following statements best describes the meaning of a cross-
bridge in the process of a muscle contraction?
Answer:
Myosin head attaching to the myosin binding sites of actin
Question:
During the ____________ phase of an action potential, Na+ is entering the
cell, causing the membrane potential to become more positive.
Answer:
Depolarization
,Question:
The _______________ nervous system consists of only the brain and spinal
cord.
Answer:
Central
Question:
Which of the following muscles are part of the quadriceps?
Answer:
Vastus lateralis, vastus medialis, rectus femoris
Question:
Which of the following structures of muscle fibers act as a calcium reservoir?
Answer:
Sarcoplasmic reticulum
Question:
The ability of muscular tissue to shorten is known as ___________________.
Answer:
Contractility
, Question:
Which of the following terms best describes the process of actin sliding across
the myosin filament?
Answer:
Power stroke
Question:
____________ channels respond to changes in membrane potential.
Answer:
Voltage-gated
Question:
Which of the following regulatory proteins covers the myosin-binding sites on
actin?
Answer:
Tropomyosin
Question:
Calcium must bind to which protein to initiate muscle contraction?
Answer:
Troponin
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