Muscle Contraction and Structure Flashcard

Front

What happens first in muscle contraction?

Back

Delivery of an action potential at the neuromuscular junction

Front

A cross-bridge forms when which two specific components meet? Actin & troponin, Myosin & ATP, Myosin heads & myosin binding sites, Calcium ions & troponin

Back

Myosin heads & myosin binding sites

Front

A cross-bridge can only form when which two substances are present?

Back

ATP and calcium ions