Muscle Tissue and Sliding Filament

What is the primary focus of the video?

• Naming different muscles

• The history of muscle study

• Muscle tissue and muscle contraction

• Exercise routines for muscle building

How many types of muscle tissue are discussed?

• Five

• Four

• Three

• Two

Which muscle tissue is found in the heart?

• Smooth Muscle tissue

• Skeletal muscle tissue

• Connective Muscle tissue

• Cardiac Muscle tissue

What characteristic is unique to smooth muscle tissue?

• It has multiple nuclei

• It does not have striations

• It is voluntary

• It is striated

What allows skeletal muscle to attach to bones or skin?

• Voluntary control

• The muscle fibers

• The myofibrils

• The sarcomere

What is the term for the main muscle doing the work in a movement?

• The origin

• The antagonist

• The agonist

• The insertion

What does the sarcomere contain that is essential for muscle contraction?

• Tropomyosin and Troponin

• Actin and Myosin

• Calcium ions

• ATP and ADP

What happens during a power stroke in muscle contraction?

• The sarcomere lengthens

• The myosin head detaches from actin

• The thin filament slides towards the sarcomere center

• ATP is produced

What blocks the myosin bonding sites on actin when a muscle is not contracting?

• Myosin heads

• ATP molecules

• Calcium ions

• Tropomyosin

What triggers the troponin to allow myosin heads to bind to actin?

• The release of calcium ions

• The movement of tropomyosin

• The release of ATP

• The hydrolysis of ATP