BIOS 242 Week 3 Quiz Exam 2 (Latest
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. Which type of muscle is involuntary and found in hollow
organs?
A. Skeletal
B. Smooth
C. Cardiac
D. None of the above
Correct Answer: B
Rationale:Smooth muscle lines organs like the intestines and blood
vessels.
2. Which type of muscle is voluntary and striated?
A. Skeletal
B. Smooth
C. Cardiac
D. None of the above
Correct Answer: A
Rationale:Skeletal muscle allows conscious movement of bones.
,3. Which type of muscle is involuntary and striated?
A. Skeletal
B. Smooth
C. Cardiac
D. None of the above
Correct Answer: C
Rationale:Cardiac muscle contracts rhythmically without conscious
control.
4. Which connective tissue connects muscles to bones?
A. Ligaments
B. Tendons
C. Fascia
D. Cartilage
Correct Answer: B
Rationale:Tendons transmit force from muscle to bone.
5. Which connective tissue connects bones to bones?
A. Ligaments
B. Tendons
C. Fascia
D. Cartilage
Correct Answer: A
Rationale:Ligaments stabilize joints by linking bones.
,6. Which connective tissue surrounds muscle fascicles?
A. Perimysium
B. Endomysium
C. Epimysium
D. Fascia
Correct Answer: A
Rationale:Bundles fibers together into fascicles.
7. Which connective tissue surrounds individual muscle fibers?
A. Endomysium
B. Perimysium
C. Epimysium
D. Fascia
Correct Answer: A
Rationale:Supports fibers and provides capillary supply.
8. Which connective tissue surrounds the entire muscle?
A. Epimysium
B. Perimysium
C. Endomysium
D. Fascia
Correct Answer: A
Rationale:Epimysium transmits force to tendons.
9. Which structure stores calcium for contraction?
, A. Sarcoplasmic reticulum
B. T-tubules
C. Mitochondria
D. Nucleus
Correct Answer: A
Rationale:Releases calcium to bind troponin and initiate
contraction.
10. Which structure propagates action potentials into the muscle
fiber?
A. T-tubules
B. Sarcolemma
C. Myofibrils
D. Sarcoplasmic reticulum
Correct Answer: A
Rationale:Ensures contraction occurs uniformly across the fiber.
11. Which protein forms the thin filament in sarcomeres?
A. Actin
B. Myosin
C. Tropomyosin
D. Troponin
Correct Answer: A
Rationale:Actin binds myosin heads during contraction.
12. Which protein forms the thick filament in sarcomeres?
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. Which type of muscle is involuntary and found in hollow
organs?
A. Skeletal
B. Smooth
C. Cardiac
D. None of the above
Correct Answer: B
Rationale:Smooth muscle lines organs like the intestines and blood
vessels.
2. Which type of muscle is voluntary and striated?
A. Skeletal
B. Smooth
C. Cardiac
D. None of the above
Correct Answer: A
Rationale:Skeletal muscle allows conscious movement of bones.
,3. Which type of muscle is involuntary and striated?
A. Skeletal
B. Smooth
C. Cardiac
D. None of the above
Correct Answer: C
Rationale:Cardiac muscle contracts rhythmically without conscious
control.
4. Which connective tissue connects muscles to bones?
A. Ligaments
B. Tendons
C. Fascia
D. Cartilage
Correct Answer: B
Rationale:Tendons transmit force from muscle to bone.
5. Which connective tissue connects bones to bones?
A. Ligaments
B. Tendons
C. Fascia
D. Cartilage
Correct Answer: A
Rationale:Ligaments stabilize joints by linking bones.
,6. Which connective tissue surrounds muscle fascicles?
A. Perimysium
B. Endomysium
C. Epimysium
D. Fascia
Correct Answer: A
Rationale:Bundles fibers together into fascicles.
7. Which connective tissue surrounds individual muscle fibers?
A. Endomysium
B. Perimysium
C. Epimysium
D. Fascia
Correct Answer: A
Rationale:Supports fibers and provides capillary supply.
8. Which connective tissue surrounds the entire muscle?
A. Epimysium
B. Perimysium
C. Endomysium
D. Fascia
Correct Answer: A
Rationale:Epimysium transmits force to tendons.
9. Which structure stores calcium for contraction?
, A. Sarcoplasmic reticulum
B. T-tubules
C. Mitochondria
D. Nucleus
Correct Answer: A
Rationale:Releases calcium to bind troponin and initiate
contraction.
10. Which structure propagates action potentials into the muscle
fiber?
A. T-tubules
B. Sarcolemma
C. Myofibrils
D. Sarcoplasmic reticulum
Correct Answer: A
Rationale:Ensures contraction occurs uniformly across the fiber.
11. Which protein forms the thin filament in sarcomeres?
A. Actin
B. Myosin
C. Tropomyosin
D. Troponin
Correct Answer: A
Rationale:Actin binds myosin heads during contraction.
12. Which protein forms the thick filament in sarcomeres?
