tejido muscular

What are the three types of muscle tissue?

• Epithelial, Connective, Nervous

• Skeletal, Cardiac, Smooth

• Tendons, Ligaments, Cartilage

• Voluntary, Involuntary, Striated

Describe the structure of skeletal muscle.

• Skeletal muscle consists of small, unorganized cells that lack myofibrils.

• Skeletal muscle is structured from long, striated, multinucleated fibers organized into fascicles, containing myofibrils and sarcomeres.

• Skeletal muscle is composed of smooth, non-striated fibers with a single nucleus.

• Skeletal muscle is made up of short, branched fibers that are organized randomly.

What is the primary function of muscle tissue?

• To produce movement through contraction.

• To facilitate the exchange of gases in the lungs.

• To store energy for the body.

• To protect internal organs from injury.

What are the characteristics of smooth muscle tissue?

• Smooth muscle tissue is striated and voluntary.

• Smooth muscle tissue is found in skeletal muscles.

• Smooth muscle tissue is non-striated, involuntary, spindle-shaped, and found in hollow organs.

• Smooth muscle tissue has a rectangular shape.

How does cardiac muscle differ from skeletal muscle?

• Cardiac muscle is involuntary and non-striated, while skeletal muscle is voluntary and striated.

• Cardiac muscle is involuntary and striated, while skeletal muscle is voluntary and striated.

• Cardiac muscle is striated and voluntary, while skeletal muscle is non-striated and involuntary.

• Cardiac muscle is voluntary and non-striated, while skeletal muscle is involuntary and striated.

What role do tendons play in skeletal muscle function?

• Tendons generate electrical signals for muscle activation.

• Tendons protect muscles from injury during exercise.

• Tendons store energy for muscle contraction.

• Tendons transmit muscle force to bones, facilitating movement.

Explain the importance of intercalated discs in cardiac muscle.

• Intercalated discs prevent muscle fatigue in skeletal muscle.

• Intercalated discs are primarily responsible for nutrient absorption.

• Intercalated discs are crucial for synchronized contraction and structural integrity in cardiac muscle.

• Intercalated discs are found only in smooth muscle.

What type of muscle tissue is involuntary and non-striated?

• Striated muscle

• Smooth muscle

• Skeletal muscle

• Cardiac muscle

How does the contraction mechanism differ between smooth and skeletal muscle?

• Smooth muscle contraction is controlled by the autonomic nervous system.

• Smooth muscle contraction is faster than skeletal muscle contraction.

• Smooth muscle contraction is regulated by MLCK and calmodulin, while skeletal muscle contraction involves troponin and is controlled by the somatic nervous system.

• Skeletal muscle contraction is regulated by MLCK and calmodulin.

What is the significance of muscle tissue in the human body?

• Muscle tissue is mainly involved in the formation of blood cells.

• Muscle tissue is significant for movement, stability, posture, and heat production.

• Muscle tissue plays a key role in the production of hormones and enzymes.

• Muscle tissue is primarily responsible for digestion and nutrient absorption.