Muscle Structure

Front

What is the Perimysium?

Back

The Perimysium is a connective tissue sheath that surrounds bundles of muscle fibers, known as fascicles, providing support and protection.

Front

What are Filaments in muscle structure?

Back

Filaments are the contractile proteins within muscle fibers, primarily actin (thin filaments) and myosin (thick filaments), that interact to produce muscle contraction.

Front

What is the periosteum of the bone?

Back

The periosteum is a dense layer of vascular connective tissue that envelops the bones except at the surfaces of the joints, providing nourishment and attachment for tendons and ligaments.

Front

What is a Muscle Fiber?

Back

A muscle fiber is a single cylindrical cell that makes up the muscle tissue, capable of contracting and relaxing to facilitate movement.

Front

What is a Fascicle?

Back

A fascicle is a bundle of muscle fibers surrounded by perimysium, which groups muscle fibers together to form the muscle.

Front

What is the role of the Epimysium?

Back

The Epimysium is the outermost layer of connective tissue that surrounds an entire muscle, providing structure and protection.

Front

What is the function of Sarcomeres?

Back

Sarcomeres are the basic functional units of muscle fibers, composed of actin and myosin filaments, responsible for muscle contraction.

Front

What is the difference between Skeletal Muscle and Smooth Muscle?

Back

Skeletal muscle is striated and under voluntary control, while smooth muscle is non-striated and involuntary, found in walls of hollow organs.

Front

What is the role of Tendons?

Back

Tendons are strong connective tissues that attach muscles to bones, transmitting the force generated by muscle contraction to produce movement.

Front

What is the function of the Sarcoplasmic Reticulum?

Back

The Sarcoplasmic Reticulum is a specialized endoplasmic reticulum in muscle cells that stores and releases calcium ions, crucial for muscle contraction.