WorksheetsAnatomy-Muscular system
Total questions: 11
Worksheet time: 5mins
What type of muscle tissue is found in the walls of hollow organs and blood vessels?
Cardiac
Skeletal
Smooth
Rough
What type of muscle(s) are involuntary?
Cardiac and Skeletal
Smooth and Skeletal
Smooth and Cardiac
None
What do you call "the outer sheath of connective tissue surrounding a skeletal muscle"?
Endomysium
Epimysium
Perimysium
Sarcolemma
What is the structural and functional unit of a myofibril?
Sarcoplasmic Reticulum
Perimysium
Filament
Sarcomere
What tissue(s) are striated?
Cardiac only
Smooth only
Cardiac and Skeletal only
Smooth and Skeletal only
What part of the muscle contracts?
Nucleus
Tendon
Sarcomere
Motor Axon Neuron
Which of these is the first step in muscle contraction?
The Sarcoplasmic Reticulum (SR) releases Ca^2.
The Sarcomere (z-lines) and muscle fiber shorten.
The motor axon releases a nerve impulse which releases acetlycholine.
The Ca^2 binds to the troponin, pulling the tropomyosin to the side, exposing the actin binding site.
What do you call the increase in diameter of muscle fiber caused by forceful repetitive muscle activity?
Atrophy
Hypertrophy
Hypotrophy
Rigor Mortis
Which of these is NOT one of the four major functions of the muscular system?
Produces Movement
Maintains posture
Balances PH levels and regulates temperature
Generates Heat
What is an example of an anaerobic exercise?
Walking
Marathon
Bicycling
Weightlifting
What is the Sarcoplasmic Reticulum's role?
To store and release Calcium to trigger contraction.
To protect and cover a thin layer of connective tissue surrounding each muscle fiber.
To bore anatomy kids.
To protect filaments within myofibril.
