BIOS 252 EXAM 1 TEST BANK | ANATOMY & PHYSIOLOGY II QUESTIONS & ANSWERS | 202… EXAM
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
BIOS 252 Exam 1 Test Bank |
Anatomy & Physiology II
Questions & Answers |
2026/2027 Chamberlain
Verified Answers Exam Ready With Rationales
100 QUESTIONS
DOCUMENT OVERVIEW
This document provides 100 anatomy and physiology II questions with their correct answers and detailed
explanations. It focuses on musculoskeletal anatomy and physiology, serving as a valuable resource for
students to review course material, prepare for exams, or for certification review.
CONTENTS
01 Skeletal Muscle Properties & Structure Q1–Q26
02 Muscle Connective Tissue & Organization Q27–Q35
03 Muscle Contraction & Physiology Q36–Q45
04 Skeletal Muscle Actions & Levers Q46–Q79
05 Neuron Structure & Function Q80–Q88
06 CNS Protection & Support Q89–Q97
07 Axon Structure & Myelination Q98–Q100
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 100
Under the principles of musculoskeletal anatomy, the term "skeletal muscle" specifically denotes a contractile tissue that:
A) Generates involuntary rhythmic contractions for peristalsis.
B) Is directly anchored to the bones of the axial and appendicular skeleton.
C) Propels blood through the circulatory system via rhythmic pumping.
D) Facilitates movement of the torso and limbs by pulling on associated bones.
CORRECT ANSWER
D) Facilitates movement of the torso and limbs by pulling on associated bones.
RATIONALE
Skeletal muscle's defining characteristic is its role in voluntary locomotion, attaching to bones to exert force and produce
movement of the skeleton, distinguishing it from smooth and cardiac muscle functions.
Q2 QUESTION 2 OF 100
Skeletal muscle tissue exhibits a unique anatomical characteristic related to its primary sites of attachment. Which
statement accurately describes the typical anatomical location for skeletal muscle tissue?
A) Primarily found composing the walls of hollow visceral organs.
B) Constituting the bulk of the heart's muscular wall.
C) Attached to bones or, in some instances, to the skin.
D) Forming the smooth musculature of the digestive tract.
CORRECT ANSWER
C) Attached to bones or, in some instances, to the skin.
RATIONALE
Skeletal muscle tissue is distinctively characterized by its attachment to the skeletal system, enabling voluntary movement, or to
the dermis of the skin, as seen in facial muscles. The other options describe locations of smooth or cardiac muscle.
Q3 QUESTION 3 OF 100
A skeletal muscle cell exhibits the characteristic of excitability. This property is best defined in physiological terms as the
ability to:
A) generate force through cross-bridge cycling.
Page 2
,B) shorten the distance between actin and myosin filaments.
C) transmit an electrical signal along its sarcolemma.
D) depolarize and repolarize its plasma membrane in response to a threshold stimulus.
CORRECT ANSWER
D) depolarize and repolarize its plasma membrane in response to a threshold stimulus.
RATIONALE
Excitability in muscle cells refers to the capacity to initiate and propagate an action potential, which involves changes in membrane
potential due to ion flux, not just force generation or filament movement. This electrical response is the first step in excitation-
contraction coupling.
Q4 QUESTION 4 OF 100
In the context of cellular physiology, the ability of an excitable membrane to propagate an electrical signal is primarily
described by which intrinsic cellular property?
A) Contractility
B) Excitability
C) Conductivity
D) Secretion
CORRECT ANSWER
C) Conductivity
RATIONALE
Conductivity refers to the capacity of a membrane to transmit an electrical impulse, a fundamental characteristic of excitable cells
like neurons and muscle fibers, allowing signal propagation. This distinguishes it from contractility (force generation) or excitability
(responsiveness to stimuli).
Q5 QUESTION 5 OF 100
In the context of the physiological properties of skeletal muscle tissue, the term 'extensibility' refers to which specific
characteristic?
A) The muscle cell's capacity to generate force when stimulated.
B) The muscle fiber's ability to shorten against resistance.
C) The neuromuscular junction's efficiency in transmitting signals.
D) The sarcolemma's potential to be stretched beyond its resting length.
CORRECT ANSWER
D) The sarcolemma's potential to be stretched beyond its resting length.
Page 3
, RATIONALE
Extensibility describes the inherent ability of a muscle fiber to lengthen or be stretched, a property distinct from contractility (force
generation) or elasticity (return to resting length). This allows muscles to accommodate a range of motion.
Q6 QUESTION 6 OF 100
In the context of muscle tissue mechanics, which of the following accurately describes the property of elasticity in skeletal
muscle fibers?
A) The continuous generation of electrical impulses that trigger contraction.
B) The capacity of muscle cells to shorten when stimulated by a neuron.
C) The ability of muscle fibers to return to their resting dimensions after being passively elongated.
D) The production of force through the interaction of actin and myosin filaments.
CORRECT ANSWER
C) The ability of muscle fibers to return to their resting dimensions after being passively elongated.
RATIONALE
Muscle elasticity refers to its passive property of recoil, allowing fibers to return to their baseline length after being stretched,
distinct from active contraction or inherent excitability. This recoil is a key component of the stretch-shortening cycle.
Q7 QUESTION 7 OF 100
Which of the following core properties of skeletal muscle tissue describes its capacity to generate tension and shorten
forcefully when stimulated by a neuron?
A) Elasticity
B) Conductivity
C) Excitability
D) Contractility
CORRECT ANSWER
D) Contractility
RATIONALE
Contractility is the unique property enabling muscle fibers to actively shorten and generate force, a direct consequence of the
interaction between actin and myosin filaments within the sarcomere upon neural excitation. This action is distinct from
conductivity (nerve impulse transmission) and excitability (response to stimuli).
Q8 QUESTION 8 OF 100
Page 4
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
BIOS 252 Exam 1 Test Bank |
Anatomy & Physiology II
Questions & Answers |
2026/2027 Chamberlain
Verified Answers Exam Ready With Rationales
100 QUESTIONS
DOCUMENT OVERVIEW
This document provides 100 anatomy and physiology II questions with their correct answers and detailed
explanations. It focuses on musculoskeletal anatomy and physiology, serving as a valuable resource for
students to review course material, prepare for exams, or for certification review.
CONTENTS
01 Skeletal Muscle Properties & Structure Q1–Q26
02 Muscle Connective Tissue & Organization Q27–Q35
03 Muscle Contraction & Physiology Q36–Q45
04 Skeletal Muscle Actions & Levers Q46–Q79
05 Neuron Structure & Function Q80–Q88
06 CNS Protection & Support Q89–Q97
07 Axon Structure & Myelination Q98–Q100
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 100
Under the principles of musculoskeletal anatomy, the term "skeletal muscle" specifically denotes a contractile tissue that:
A) Generates involuntary rhythmic contractions for peristalsis.
B) Is directly anchored to the bones of the axial and appendicular skeleton.
C) Propels blood through the circulatory system via rhythmic pumping.
D) Facilitates movement of the torso and limbs by pulling on associated bones.
CORRECT ANSWER
D) Facilitates movement of the torso and limbs by pulling on associated bones.
RATIONALE
Skeletal muscle's defining characteristic is its role in voluntary locomotion, attaching to bones to exert force and produce
movement of the skeleton, distinguishing it from smooth and cardiac muscle functions.
Q2 QUESTION 2 OF 100
Skeletal muscle tissue exhibits a unique anatomical characteristic related to its primary sites of attachment. Which
statement accurately describes the typical anatomical location for skeletal muscle tissue?
A) Primarily found composing the walls of hollow visceral organs.
B) Constituting the bulk of the heart's muscular wall.
C) Attached to bones or, in some instances, to the skin.
D) Forming the smooth musculature of the digestive tract.
CORRECT ANSWER
C) Attached to bones or, in some instances, to the skin.
RATIONALE
Skeletal muscle tissue is distinctively characterized by its attachment to the skeletal system, enabling voluntary movement, or to
the dermis of the skin, as seen in facial muscles. The other options describe locations of smooth or cardiac muscle.
Q3 QUESTION 3 OF 100
A skeletal muscle cell exhibits the characteristic of excitability. This property is best defined in physiological terms as the
ability to:
A) generate force through cross-bridge cycling.
Page 2
,B) shorten the distance between actin and myosin filaments.
C) transmit an electrical signal along its sarcolemma.
D) depolarize and repolarize its plasma membrane in response to a threshold stimulus.
CORRECT ANSWER
D) depolarize and repolarize its plasma membrane in response to a threshold stimulus.
RATIONALE
Excitability in muscle cells refers to the capacity to initiate and propagate an action potential, which involves changes in membrane
potential due to ion flux, not just force generation or filament movement. This electrical response is the first step in excitation-
contraction coupling.
Q4 QUESTION 4 OF 100
In the context of cellular physiology, the ability of an excitable membrane to propagate an electrical signal is primarily
described by which intrinsic cellular property?
A) Contractility
B) Excitability
C) Conductivity
D) Secretion
CORRECT ANSWER
C) Conductivity
RATIONALE
Conductivity refers to the capacity of a membrane to transmit an electrical impulse, a fundamental characteristic of excitable cells
like neurons and muscle fibers, allowing signal propagation. This distinguishes it from contractility (force generation) or excitability
(responsiveness to stimuli).
Q5 QUESTION 5 OF 100
In the context of the physiological properties of skeletal muscle tissue, the term 'extensibility' refers to which specific
characteristic?
A) The muscle cell's capacity to generate force when stimulated.
B) The muscle fiber's ability to shorten against resistance.
C) The neuromuscular junction's efficiency in transmitting signals.
D) The sarcolemma's potential to be stretched beyond its resting length.
CORRECT ANSWER
D) The sarcolemma's potential to be stretched beyond its resting length.
Page 3
, RATIONALE
Extensibility describes the inherent ability of a muscle fiber to lengthen or be stretched, a property distinct from contractility (force
generation) or elasticity (return to resting length). This allows muscles to accommodate a range of motion.
Q6 QUESTION 6 OF 100
In the context of muscle tissue mechanics, which of the following accurately describes the property of elasticity in skeletal
muscle fibers?
A) The continuous generation of electrical impulses that trigger contraction.
B) The capacity of muscle cells to shorten when stimulated by a neuron.
C) The ability of muscle fibers to return to their resting dimensions after being passively elongated.
D) The production of force through the interaction of actin and myosin filaments.
CORRECT ANSWER
C) The ability of muscle fibers to return to their resting dimensions after being passively elongated.
RATIONALE
Muscle elasticity refers to its passive property of recoil, allowing fibers to return to their baseline length after being stretched,
distinct from active contraction or inherent excitability. This recoil is a key component of the stretch-shortening cycle.
Q7 QUESTION 7 OF 100
Which of the following core properties of skeletal muscle tissue describes its capacity to generate tension and shorten
forcefully when stimulated by a neuron?
A) Elasticity
B) Conductivity
C) Excitability
D) Contractility
CORRECT ANSWER
D) Contractility
RATIONALE
Contractility is the unique property enabling muscle fibers to actively shorten and generate force, a direct consequence of the
interaction between actin and myosin filaments within the sarcomere upon neural excitation. This action is distinct from
conductivity (nerve impulse transmission) and excitability (response to stimuli).
Q8 QUESTION 8 OF 100
Page 4
