D312 SCIE 1011 Anatomy &
Physiology I
Final Assessment Review
(Questions & Solutions)
2025
1
, 1. Multiple Choice
Question:
During a lab microscopic examination of muscle tissue, students
observed cells with prominently located intercalated discs. Which type of
muscle tissue is being examined?
- A. Skeletal
- B. Smooth
- C. Cardiac
- D. Striated skeletal
Correct ANS:
C. Cardiac
Rationale:
Intercalated discs are specialized junctions found exclusively in cardiac
muscle tissue. They facilitate rapid electrical coupling and synchronized
contraction, which is critical for heart function—a concept vital for nurses
understanding cardiovascular physiology.
---
2. Fill-in-the-Blank
Question:
The fundamental contractile unit of skeletal muscle is called a ________
.
Correct ANS:
Sarcomere
Rationale:
The sarcomere is the basic unit of striated muscle responsible for
2
, contraction. Its proper functioning is essential for movement and
stability, underscoring its importance in musculoskeletal physiology,
clinical assessments, and therapy.
---
3. True/False
Question:
Smooth muscle contraction is primarily initiated by action potentials
transmitted through extensive gap junctions similar to cardiac muscle.
Correct ANS:
False
Rationale:
Smooth muscle generally contracts via slow wave potentials and graded
receptor-mediated responses rather than the rapid, extensive gap
junction–mediated conduction seen in cardiac tissue. Understanding
these differences aids in appreciating varied tissue responses to stimuli.
---
4. Multiple Response
Question:
Which of the following represent divisions or regions within the vertebral
column? (Select all that apply)
- A. Cervical
- B. Sacral
- C. Thoracic
- D. Mandibular
Correct ANSs:
A, B, C
Rationale:
3
Physiology I
Final Assessment Review
(Questions & Solutions)
2025
1
, 1. Multiple Choice
Question:
During a lab microscopic examination of muscle tissue, students
observed cells with prominently located intercalated discs. Which type of
muscle tissue is being examined?
- A. Skeletal
- B. Smooth
- C. Cardiac
- D. Striated skeletal
Correct ANS:
C. Cardiac
Rationale:
Intercalated discs are specialized junctions found exclusively in cardiac
muscle tissue. They facilitate rapid electrical coupling and synchronized
contraction, which is critical for heart function—a concept vital for nurses
understanding cardiovascular physiology.
---
2. Fill-in-the-Blank
Question:
The fundamental contractile unit of skeletal muscle is called a ________
.
Correct ANS:
Sarcomere
Rationale:
The sarcomere is the basic unit of striated muscle responsible for
2
, contraction. Its proper functioning is essential for movement and
stability, underscoring its importance in musculoskeletal physiology,
clinical assessments, and therapy.
---
3. True/False
Question:
Smooth muscle contraction is primarily initiated by action potentials
transmitted through extensive gap junctions similar to cardiac muscle.
Correct ANS:
False
Rationale:
Smooth muscle generally contracts via slow wave potentials and graded
receptor-mediated responses rather than the rapid, extensive gap
junction–mediated conduction seen in cardiac tissue. Understanding
these differences aids in appreciating varied tissue responses to stimuli.
---
4. Multiple Response
Question:
Which of the following represent divisions or regions within the vertebral
column? (Select all that apply)
- A. Cervical
- B. Sacral
- C. Thoracic
- D. Mandibular
Correct ANSs:
A, B, C
Rationale:
3
