In this activity students will follow a procedure that instructs them to color and label 4 different sheets:
(1) The neuromuscular junction
(2) The sarcoplasmic reticulum
(3) The sarcomere
(4) The cross-bridge cycle
As students color and label each they will also address each step of the muscle contraction cascade and at the end tape all the sheets together into one "mega diagram" of a muscle contraction from start to finish.
Students should have a background understanding of cellular transport and cellular respiration.