when jacob starts running, his legs move faster and his heart rate increases. which types of muscles are…
when jacob starts running, his legs move faster and his heart rate increases. which types of muscles are involved in these changes?\nskeletal muscles control his leg movement and smooth muscles control his heart rate.\nskeletal muscles control his leg movement and cardiac muscles control his heart rate.\nsmooth muscles control his leg movement and cardiac muscles control his heart rate.\nskeletal muscles control both his leg movement and heart rate.
Answer
Brief Explanations:
Skeletal muscles are attached to bones and are responsible for voluntary movements like leg - movement during running. Cardiac muscles are found in the heart and are responsible for the rhythmic contraction and relaxation of the heart, controlling heart rate. Smooth muscles are not involved in leg - movement during running or heart - rate control in the way described in the options.
Answer:
B. Skeletal muscles control his leg movement and cardiac muscles control his heart rate.