A&P 1 101 Module 5 Exam || Muscular Questions and Answers || Portage Learning
A&P; 1 101 Module 5 Exam
Muscular Questions and Answers — Portage Learning
45-Question Comprehensive Module Examination
Aligned with Portage Learning Anatomy & Physiology 1 Module 5 Curriculum
Total Questions: 45 | Cognitive Levels: 30% Recall, 50% Application, 20% Analysis
Question Style: 60% Scenario/Essay-Based | 25% Direct Recall | 15% Diagram/Identification
Section Topic Question Range
Section 1 Functions and Types of Muscle Tissue (Skeletal, Cardiac, Smooth) Q1 - Q8
Section 2 Skeletal Muscle Anatomy (Organization, Connective Tissue, Blood Supply, Innervation)
Q9 - Q16
Section 3 Neuromuscular Junction and Muscle Contraction (Sliding Filament Theory) Q17 - Q24
Section 4 Muscle Metabolism and Energy Sources (ATP, Creatine Phosphate, Glycolysis, Aerobic
Q25 - Q30
Respiration)
Section 5 Muscle Fiber Types and Contraction Types (Isotonic vs. Isometric, Twitch, Tetanus)
Q31 - Q35
Section 6 Major Muscles of the Human Body (Axial and Appendicular Muscles) Q36 - Q42
Section 7 Clinical Applications and Integrated Scenarios Q43 - Q45
Section 1: Functions and Types of Muscle Tissue (Skeletal, Cardiac, Smooth)
(Q1-Q8)
Q1: A marathon runner begins to shiver as core body temperature drops during a cold-weather race. Which
primary function of muscle tissue is most directly responsible for this thermogenic response?
A. Movement via skeletal manipulation
B. Stability and posture maintenance
C. Heat production as a byproduct of contraction (thermogenesis) [CORRECT]
D. Control of body openings via sphincters
Correct Answer: C
Rationale: Skeletal muscle contractions generate heat as a metabolic byproduct (thermogenesis), with shivering being
involuntary rhythmic contractions that boost heat production. This is a primary function of muscle tissue distinct from
movement, stability, or sphincter control.
Aligned with Portage Learning A&P 1 Module 5 Curriculum Page 1
, A&P 1 101 Module 5 Exam || Muscular Questions and Answers || Portage Learning
Q2: Which type of muscle tissue is characterized as voluntary, striated, and multinucleated with long cylindrical
fibers?
A. Cardiac muscle
B. Smooth muscle
C. Skeletal muscle [CORRECT]
D. Multi-unit smooth muscle
Correct Answer: C
Rationale: Skeletal muscle is voluntary (controlled by the somatic nervous system), striated, and multinucleated, with
long cylindrical fibers. Cardiac muscle is involuntary, striated, and uninucleated with branched fibers; smooth muscle is
involuntary, non-striated, and uninucleated with spindle-shaped cells.
Q3: Intercalated discs containing gap junctions are a unique histological feature most associated with which
muscle type?
A. Skeletal muscle
B. Cardiac muscle [CORRECT]
C. Smooth muscle
D. Tendon connective tissue
Correct Answer: B
Rationale: Cardiac muscle contains intercalated discs with gap junctions that allow synchronized contraction
(autorhythmicity) essential for the heart's pumping function. Skeletal muscle lacks intercalated discs and depends on
neural stimulation; smooth muscle uses gap junctions but lacks the disc structure.
Q4: Peristalsis in the small intestine is the propulsion of contents along the digestive tract. Which muscle type
and mechanism produce this movement?
A. Skeletal muscle undergoing summation
B. Smooth muscle producing rhythmic, involuntary waves of contraction [CORRECT]
C. Cardiac muscle undergoing tetanus
D. Skeletal muscle producing isometric contraction
Correct Answer: B
Rationale: Smooth muscle in the walls of hollow organs (such as the intestines) is involuntary, non-striated, and
spindle-shaped. Its rhythmic, wave-like contractions propel substances (peristalsis). Skeletal and cardiac muscles do
not perform peristalsis; tetanus is a sustained skeletal muscle contraction, not propulsive.
Q5: A patient presents with the inability to voluntarily control urination despite intact bladder wall musculature.
Damage to which muscle type most directly impairs voluntary control of the urinary sphincter?
A. Cardiac muscle in the bladder wall
B. Smooth muscle of the bladder wall (detrusor)
C. Skeletal muscle of the external urethral sphincter (voluntary) [CORRECT]
D. Smooth muscle of the internal urethral sphincter
Correct Answer: C
Rationale: The external urethral sphincter is composed of skeletal muscle and is under voluntary somatic control,
allowing conscious micturition. The internal sphincter and detrusor are smooth muscle under autonomic (involuntary)
control. Damage to skeletal sphincter muscle impairs voluntary control.
Aligned with Portage Learning A&P 1 Module 5 Curriculum Page 2
A&P; 1 101 Module 5 Exam
Muscular Questions and Answers — Portage Learning
45-Question Comprehensive Module Examination
Aligned with Portage Learning Anatomy & Physiology 1 Module 5 Curriculum
Total Questions: 45 | Cognitive Levels: 30% Recall, 50% Application, 20% Analysis
Question Style: 60% Scenario/Essay-Based | 25% Direct Recall | 15% Diagram/Identification
Section Topic Question Range
Section 1 Functions and Types of Muscle Tissue (Skeletal, Cardiac, Smooth) Q1 - Q8
Section 2 Skeletal Muscle Anatomy (Organization, Connective Tissue, Blood Supply, Innervation)
Q9 - Q16
Section 3 Neuromuscular Junction and Muscle Contraction (Sliding Filament Theory) Q17 - Q24
Section 4 Muscle Metabolism and Energy Sources (ATP, Creatine Phosphate, Glycolysis, Aerobic
Q25 - Q30
Respiration)
Section 5 Muscle Fiber Types and Contraction Types (Isotonic vs. Isometric, Twitch, Tetanus)
Q31 - Q35
Section 6 Major Muscles of the Human Body (Axial and Appendicular Muscles) Q36 - Q42
Section 7 Clinical Applications and Integrated Scenarios Q43 - Q45
Section 1: Functions and Types of Muscle Tissue (Skeletal, Cardiac, Smooth)
(Q1-Q8)
Q1: A marathon runner begins to shiver as core body temperature drops during a cold-weather race. Which
primary function of muscle tissue is most directly responsible for this thermogenic response?
A. Movement via skeletal manipulation
B. Stability and posture maintenance
C. Heat production as a byproduct of contraction (thermogenesis) [CORRECT]
D. Control of body openings via sphincters
Correct Answer: C
Rationale: Skeletal muscle contractions generate heat as a metabolic byproduct (thermogenesis), with shivering being
involuntary rhythmic contractions that boost heat production. This is a primary function of muscle tissue distinct from
movement, stability, or sphincter control.
Aligned with Portage Learning A&P 1 Module 5 Curriculum Page 1
, A&P 1 101 Module 5 Exam || Muscular Questions and Answers || Portage Learning
Q2: Which type of muscle tissue is characterized as voluntary, striated, and multinucleated with long cylindrical
fibers?
A. Cardiac muscle
B. Smooth muscle
C. Skeletal muscle [CORRECT]
D. Multi-unit smooth muscle
Correct Answer: C
Rationale: Skeletal muscle is voluntary (controlled by the somatic nervous system), striated, and multinucleated, with
long cylindrical fibers. Cardiac muscle is involuntary, striated, and uninucleated with branched fibers; smooth muscle is
involuntary, non-striated, and uninucleated with spindle-shaped cells.
Q3: Intercalated discs containing gap junctions are a unique histological feature most associated with which
muscle type?
A. Skeletal muscle
B. Cardiac muscle [CORRECT]
C. Smooth muscle
D. Tendon connective tissue
Correct Answer: B
Rationale: Cardiac muscle contains intercalated discs with gap junctions that allow synchronized contraction
(autorhythmicity) essential for the heart's pumping function. Skeletal muscle lacks intercalated discs and depends on
neural stimulation; smooth muscle uses gap junctions but lacks the disc structure.
Q4: Peristalsis in the small intestine is the propulsion of contents along the digestive tract. Which muscle type
and mechanism produce this movement?
A. Skeletal muscle undergoing summation
B. Smooth muscle producing rhythmic, involuntary waves of contraction [CORRECT]
C. Cardiac muscle undergoing tetanus
D. Skeletal muscle producing isometric contraction
Correct Answer: B
Rationale: Smooth muscle in the walls of hollow organs (such as the intestines) is involuntary, non-striated, and
spindle-shaped. Its rhythmic, wave-like contractions propel substances (peristalsis). Skeletal and cardiac muscles do
not perform peristalsis; tetanus is a sustained skeletal muscle contraction, not propulsive.
Q5: A patient presents with the inability to voluntarily control urination despite intact bladder wall musculature.
Damage to which muscle type most directly impairs voluntary control of the urinary sphincter?
A. Cardiac muscle in the bladder wall
B. Smooth muscle of the bladder wall (detrusor)
C. Skeletal muscle of the external urethral sphincter (voluntary) [CORRECT]
D. Smooth muscle of the internal urethral sphincter
Correct Answer: C
Rationale: The external urethral sphincter is composed of skeletal muscle and is under voluntary somatic control,
allowing conscious micturition. The internal sphincter and detrusor are smooth muscle under autonomic (involuntary)
control. Damage to skeletal sphincter muscle impairs voluntary control.
Aligned with Portage Learning A&P 1 Module 5 Curriculum Page 2
