Skeletal Muscle Anatomy & Sliding Filament Theory PRETEST

What is the name of the Thick filaments?

• Actin
• Myosin
• Myoglobin
• Titan

What is the name of the thin filaments in the muscle cell?

• Actin
• Myosin
• Myoglobin
• Titan

The neurotransmitter that signals muscle contraction is called...

• Ach
• Myosin
• Actin
• Calcium

What is the name of the contractile unit in a muscle cell?

• fascicle
• sarcomere
• tendon
• endomysium

The plasma membrane of a skeletal muscle cell is called the:

• sarcomere
• myofilament
• sarcolemma
• sarcoplasm

Region where a motor neuron comes in close contact with a muscle cell.

• neurotransmitter
• muscular dystrophy
• muscle tension
• neuromuscular junction

The functional unit of the muscle cell is the: 

• Sarcomere
• Osteon
• Myofilament
• Muscle fiber

The Ions that are responsible for removing Troponin from Tropomyosin.

• Sodium
• Calcium
• Potassium
• Magnesium

What two chemicals are necessary for muscle contraction to occur?

• Niacin and Potassium
• Calcium and ATP
• Sodium and Potassium
• Ach and Potassium

enzyme that breaks down the muscle cell neurotransmitter and ends the impulse

• lactase
• sucrase
• lipase
• acetylcholinterase