Flashcards
Muscular System Practice
Cards in this deck (21)
- 1Give the 4 main functions of the muscular systemMovement
Stabilization
Storing and moving substances within the body Generating heat - 2Name the 3 muscle types and indicated whether they are striated or non-striatedSkeletal = Striated
Cardiac = Striated
Smooth = Non-Striated - 3What does autorhythmic mean?Contraction without nervous stimulation (cardiac muscle, some smooth muscle)
- 4What is the special name for the plasma membrane of a muscle cell?Sarcolemma
- 5Fill in the gap in this breakdown of muscle structure Muscle, Muscle fibres, ..........., Filaments MyofibrilMyofibril
- 6What is the job of sarcoplasmic reticulum?Stores and releases calcium – important for muscle contraction
- 7What are the names of the 2 myofilaments that perform contraction in the muscles?Actin Myosin
- 8Where would you find the Epimysium?Wrapped around an entire muscle
- 9Which neurotransmitter do you find at the neuromuscular junction?Acetyl choline
- 10Give 3 reasons why muscle need a good blood supply?Oxygen
Nutrients
Remove waste - 11Which produces more ATP, aerobic or anaerobic respiration?(1 mark)
Aerobic - 12What is the name of the oxygen binding protein found in muscles?Myoglobin
- 13Which type of muscle fibres fatigue quickly but are the most powerful?Fast glycolytic fibres
- 14What is the key difference between cardiac muscle and skeletal muscle?Cardiac muscle has intercalated discs – Allow muscle contraction to travel from fibre to fibre
- 15Name 3 places you might find smooth muscle?Wall of arteries / Airways / Iris
Cillary body that focuses lens of the eye Arrector pili muscles in hair follicles Stomach
Blood vessels Bladder - 16What is the name of the process by which skeletal muscle grow?Hypertrophy = enlargement of existing fibres
- 17What do we call the place where the muscles tendon attaches to the stationary bone?Origin
- 18What is the name of the place where the tendon attaches to the moving bone?Insertion
- 19What is a fascicle?A bundle of parallel muscle fibres
- 20Name an antagonistic pair of muscles?Biceps and triceps
- 21What is a fixator muscle?A muscle that helps keep an origin bone still while a prime mover contracts