Muscle Anatomy
This muscle flexes the elbow.
What is the biceps brachii?
Functional unit of contraction
What is a sarcomere?
Chemical messenger released at the NMJ
What is acetylcholine?
Process requiring oxygen to make ATP
What is aerobic respiration?
Injury to a muscle or tendon
What is a strain?
This muscle extends the knee.
What is the quadriceps?
Thin filament
What is actin?
Site where a neuron communicates with a muscle fiber
What is the neuromuscular junction?
Process that can occur without oxygen
What is anaerobic respiration?
Injury to a ligament
What is a sprain?
This muscle is the prime mover during a push-up.
What is the pectoralis major?
Thick filament
What is myosin?
One motor neuron and all muscle fibers it controls
What is a motor unit?
Muscle fiber type used by marathon runners
What are slow-twitch fibers?
Decrease in muscle size due to disuse
What is muscle atrophy?
This muscle group is located on the posterior thigh.
What are the hamstrings?
Energy molecule required for contraction
What is ATP?
Principle stating a muscle fiber either contracts completely or not at all
What is the all-or-none principle?
Muscle fiber type used by sprinters
What are fast-twitch fibers?
Genetic disorder causing progressive muscle degeneration
What is muscular dystrophy?
This muscle is the primary muscle used during plantar flexion.
What is the gastrocnemius?
This occurs when actin slides over myosin
What is muscle contraction?
Disease where antibodies block acetylcholine receptors
What is Myasthenia Gravis?
Continued heavy breathing after exercise helps repay this
What is oxygen debt?
Toxin that blocks acetylcholine release
What is botulinum toxin (Botox)?