Sarcomeres
The region of the sarcomere containing only thin filaments
What is the I band?
This is a rope-like connective tissue connecting muscle to bone
What is a tendon?
The portion of myosin that binds to actin
What are the myosin heads?
NT released into the synaptic cleft to induce contraction
What is acetylcholine or ACh
Muscle that produces movement in the opposite direction of another muscle
What is an antagonist?
This demarcates the edges of a sarcomere
What is the Z disc?
The name for a muscle cell
The cell membrane in muscle fibers
What is the sarcolemma?
These are formed when myosin heads bind to actin
What are cross-bridges?
A neuron and all of the muscle fibers it innervates
What is a motor unit?
The portion of the sarcomere containing, but not entirely exclusive to, thick filaments
What is the A band?
Sheet of connective tissue in muscle attachment
What is aponeurosis?
Membrane complex that stores calcium
What is the sarcoplasmic reticulum?
This contributes to ending the signal for contraction
What is acetylcholinesterase or AChE?
Muscle fiber type that is red and thinner
What are type I or slow oxidative fibers?
The center of the A band
What is the M line?
Structural level below muscle fibers
What are myofibrils?
This carries impulses from the sarcolemma
What are the transverse or t-tubules?
This is required in addition to calcium for muscle contraction
What is ATP?
An autoimmune disease characterized by ptosis
What is myasthenia gravis?
The portion of the sarcomere just containing thick filaments
What is the H zone?
Connective tissue surrounding muscle fascicles
What is perimysium?
Calcium binds to this to induce muscle contraction
Region of sarcolemma with increased surface area
What is the motor end plate?
Inherited disease characterized by deterioration, winged scapulae, and scoliosis
What is muscular dystrophy?