nmdcat.online
BIO NMDCAT Muscles
nmdcat.online July 28, 2026

In a comparative study of muscle fatigue, a physiologist isolates three muscle types. Tissue X fatigues rapidly, Tissue Y exhibits slow, sustained contractions without fatigue, and Tissue Z contracts rhythmically without fatigue. What is the most likely identity of Tissue Y?

A. Skeletal muscle
B. Cardiac muscle
C. Smooth muscle
✓
D. Striated muscle

📝 Explanation

Tissue X is skeletal muscle (fatigues easily), Tissue Z is cardiac muscle (contracts rhythmically without fatigue), and Tissue Y is smooth muscle, which is highly specialized for slow, sustained contractions (tonus) with minimal energy expenditure and no fatigue.

📖 Additional Information

  • Skeletal muscle
  • Cardiac muscle
  • Smooth muscle
  • Striated muscle

Tissue X is skeletal muscle (fatigues easily), Tissue Z is cardiac muscle (contracts rhythmically without fatigue), and Tissue Y is smooth muscle, which is highly specialized for slow, sustained contractions (tonus) with minimal energy expenditure and no fatigue.

🔗 Share This Question

Facebook Twitter LinkedIn WhatsApp

🧭 Navigate Questions

Previous Question

An increase in parasympathetic nervous system activity will exert significantly different effects on different muscle types. Which of the following correctly describes the expected physiological response?

Next Question

The observed experimental result of applying a drug that specifically blocks somatic motor neurons would be complete paralysis of which of the following structures?

Back to All Questions

🔗 Related MCQs

Concerning the duration of muscle twitches, if a skeletal muscle twitch lasts approximately 10-100 milliseconds, what is the expected duration of a typical smooth muscle contraction?
July 28, 2026
The physiological response to hypoxia (low oxygen) differs among muscle types. Which muscle type is most susceptible to irreversible damage following a brief period of hypoxia?
July 28, 2026
A medical relevance of understanding muscle tissue differences is the development of calcium channel blockers. These drugs are primarily used to treat hypertension (high blood pressure) and angina. They exert their biological effect mainly by acting on:
July 28, 2026
During the process of cell differentiation, which muscle type loses its ability to divide and form new cells almost completely, relying solely on hypertrophy for growth?
July 28, 2026
The functional relationship between the shape of a muscle cell and its tissue type is evident when observing spindle-shaped cells. This specific morphology allows the cells to:
July 28, 2026

Categories

View all →