Fun facts
This is the largest muscle in the human body.
What is the gluteus maximus?
This type of contraction occurs when the muscle length does not change.
What is isometric contraction?
This protein binds with calcium ions to initiate the contraction cycle
What is troponin?
This neurotransmitter is released at the neuromuscular junction to stimulate muscle contraction
What is acetylcholine?
Name the muscle type that is voluntary
What is skeletal muscle?
The smallest skeletal muscle is located in this part of the body.
What is the ear? (The stapedius muscle)
This type of contraction happens when the muscle shortens while generating force.
What is concentric contraction?
This is the name of the binding cycle where actin and myosin filaments slide past each other.
What is the cross-bridge cycle?
This ion influx occurs when acetylcholine binds to its receptor, causing depolarization
What is sodium?
What is the basic unit of a muscle called?
What is a Sarcomere?
This type of muscle tissue is involuntary and found in the walls of internal organs.
What is smooth muscle?
This contraction type occurs when a muscle lengthens while under tension.
What is eccentric contraction?
During contraction, this ion binds to troponin, causing a conformational change that moves tropomyosin.
What is calcium?
When acetylcholine binds to the muscle cell, it causes this change in the muscle cell membrane.
What is depolarization?
What type of muscle is the heart?
What is cardiac muscle?
This muscle is commonly referred to as the “calf muscle.”
What is the gastrocnemius?
This type of contraction is commonly used in exercises like holding a plank or wall sit.
What is isometric contraction?
ATP is needed for this specific part of the contraction mechanism.
What is the detachment of myosin from actin?
This is the name of the connection between a nerve cell and a muscle cell.
What is the neuromuscular junction?
What structure stores calcium in muscle cells?
What is Sarcoplasmic reticulum?
This is the name for the network of muscle fibers that allows the heart to contract as a single unit.
What is the cardiac syncytium?
These types of muscle contractions are combined in resistance training exercises, such as in a squat where both lowering and lifting phases occur.
What are concentric and eccentric contractions?
This protein is responsible for pumping calcium back into the sarcoplasmic reticulum after a contraction ends.
What is Sarcoplasmic/Endoplasmic Reticulum Calcium ATPase?
These structures store and release calcium ions necessary for muscle contraction.
What are the sarcoplasmic reticulum?
What protein binds oxygen in muscle?
What is my myoglobin?