U3L1 Lecture Review - ASSIGNMENT

Front

What is the epimysium?

Back

The epimysium is a connective tissue sheath that surrounds an entire muscle, providing structure and support.

Front

What is the perimysium?

Back

The perimysium is a connective tissue that surrounds bundles of muscle fibers, known as fascicles, and contains blood vessels and nerves.

Front

What is a fascicle?

Back

A fascicle is a bundle of muscle fibers (muscle cells) grouped together within a muscle.

Front

What is a myofibril?

Back

Myofibrils are long, thread-like structures within muscle fibers that contain the contractile proteins actin and myosin.

Front

What is the function of a tendon?

Back

Tendons are connective tissues that attach muscles to bones, allowing for movement.

Front

What is the sarcolemma?

Back

The sarcolemma is the cell membrane surrounding a muscle fiber, playing a key role in muscle contraction.

Front

What is the role of blood vessels in muscles?

Back

Blood vessels supply oxygen and nutrients to muscle tissues and remove waste products.

Front

What is the difference between epimysium and perimysium?

Back

Epimysium surrounds the entire muscle, while perimysium surrounds individual fascicles within the muscle.

Front

What is the relationship between myofibrils and muscle contraction?

Back

Myofibrils contain the contractile proteins that shorten and generate force during muscle contraction.

Front

How do tendons contribute to movement?

Back

Tendons transmit the force generated by muscles to bones, facilitating movement at joints.