Question

assign each characteristic to the appropriate type of muscle. labels drop zones reset all dense bodies skeletal muscle (1/3) smooth muscle (2/3) both (3/3) contains t tubules striated contain thin filaments of actin carbon dioxide levels in blood promote contraction may be autorhythmic

Explanation:

• Dense bodies are unique to smooth muscle.
• T - tubules are present in skeletal muscle.
• Striated appearance is characteristic of skeletal muscle.
• Both skeletal and smooth muscle have thin actin filaments.
• Carbon dioxide levels in blood promoting contraction is a feature of smooth muscle.
• Autorhythmicity can be a feature of smooth muscle.

Answer:

• Dense bodies: Smooth Muscle
• Contains T tubules: Skeletal Muscle
• Striated: Skeletal Muscle
• Contain thin filaments of actin: Both
• Carbon dioxide levels in blood promote contraction: Smooth Muscle
• May be autorhythmic: Smooth Muscle