Muscles

Front

What is the sliding filament theory?

Back

The sliding filament theory explains the mechanism of muscle contraction, where actin and myosin filaments slide past each other to shorten the muscle fiber.

Front

What type of muscle is found in the heart?

Back

Cardiac muscle is the type of muscle found in the heart, characterized by its striated appearance and involuntary control.

Front

What is the primary function of the triceps muscle?

Back

The triceps muscle is responsible for extending the elbow joint, allowing for straightening of the arm.

Front

What is the rectus femoris?

Back

The rectus femoris is one of the four quadriceps muscles located in the front of the thigh, involved in knee extension and hip flexion.

Front

What is the sartorius muscle known for?

Back

The sartorius is the longest muscle in the human body, running from the hip to the knee, and is involved in flexing, abducting, and laterally rotating the thigh.

Front

What are the three types of muscle tissue?

Back

The three types of muscle tissue are skeletal, cardiac, and smooth muscle.

Front

What is the role of the sarcoplasmic reticulum in muscle contraction?

Back

The sarcoplasmic reticulum stores calcium ions, which are released during muscle contraction to facilitate the interaction between actin and myosin.

Front

What is the function of smooth muscle?

Back

Smooth muscle is responsible for involuntary movements in various organs, such as the digestive tract and blood vessels.

Front

What is the difference between voluntary and involuntary muscles?

Back

Voluntary muscles, like skeletal muscles, are under conscious control, while involuntary muscles, like cardiac and smooth muscles, operate without conscious control.

Front

What is muscle hypertrophy?

Back

Muscle hypertrophy is the increase in muscle size and strength due to resistance training and exercise.