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55 Cards in this Set
- Front
- Back
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Cardiac and skeletal muscle contain visible bands that are called _________________
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striations
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The muscular layer of the intestine is composed of visceral, or ____________________ muscle.
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smooth
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The ability of a muscle to transmit electrical current is termed ____________________
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excitability
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The ability of a muscle to shorten is termed ___________________
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contractility
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Binding sites on the actin molecules are covered by a troponin and ________________ when the muscle is at rest
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tropomyosin
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The larger of the two filaments forming a cross bridge is made of a protein called _______________
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myosin
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The neurotransmitter released at the neuromuscular junction is called ________________
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acetycholine
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The compound that causes the mysoin head to detach from actin is called ______________
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ATP
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Muscles operating anaerobicallyare said to be in a state of _______________________
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oxygen debt
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The polysaccharide in muscles containing multiple glucose molecules is named _______________
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glycogen`
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The energy storing compound that is similar to ATP is called __________________
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creatine phosphate
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The increase in muscle size resulting from resistance training is termed _____________________
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hypertrophy
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A contraction the shortens the muscle but does not increase muscle tension is called ___________________
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isotonic
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Mr M's arm muscle is contracted because he is carrying a heavy box. This contraction which is associated with an increase in muscle tension, is termed ___________________
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isometric
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A muscle that produces a given movement is called _______________________
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prime mover
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The muscle that opposes a given action is called the _______________________
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antagonist
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The more movable attachment point of a muscle is called the ______________________
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insertion
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The pivot point of a lever system is called the _____________________
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fulcrum
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Raising a beer glass by flexing the arm at the elbow is an example of a ____________________ class lever sytem
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third
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A term referring to a muscle that decreases the angle at a joint is ____________________
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flexor
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A adjective describingmuscle fibers running in a straight line is _______________________
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rectus
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The prime mover in plantar flexion is the _____________________
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gastrocnemius
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The innermost muscle of the abdomen is the ___________________
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transversus abdominis
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The triceps brachii ____________________ the arm at the elbow
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extends
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The ____________________ tendon is attached to the heel.
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achilles
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The cheek muscle used in whistling is the _____________________
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buccinator
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Inflammation of a tendon is called __________________
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tendinitis
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Inflammation of a fluid filled sac near a joint results in ____________________
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bursitis
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The medical term for muscle pain is _______________________
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myalgia
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A sudden involuntary muscle contraction is a _______________________
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spasm
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The word sarc/o means __________________
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flesh
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A bundle of muscle fibers is called a
a) fasicle b) sheath c) fascia d) epimysium |
a) fasicle
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The membrane surrounding individual muscle fibers is the
a) epimysium b) deep fascia c) endomysium d) perimysium |
c) endomysium
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Which of the following is NOT a function of the muscular system
a) skeletal movement b) heat generation c) posture d) body cooling through evaporation |
d) body cooling through evaporation
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A single neuron and all muscle fibers it stimulates comprise a
a) neuromuscular junction b) motor end plate c) motor unit d) synapse |
c) motor unit
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The two filaments that form cross-bridges are
a) actin and troponin b) tropomyosin and myosin c) actin and myosin d) troponin and tropomyosin |
c) actin and myosin
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The ion that binds the troponin/tropomysoin complex is called
a) calcium b) sodium c) ATP d) actin |
a) calcium
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The compound that binds myosin and provides the energy for the power stroke is
a) creatine phosphate b) glucose c) ATP d) calcium |
c) ATP
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A substance produced during oxygen debt is
a) lactic acid b) calcium phosphate c) acetylcholine d) glucose |
a) lactic acid
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The compound that stores oxygen in muscle cells is
a) hemoglobin b) glycogen c) creatine phosphate d) myoglobin |
d) myoglobin
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Exercise results in:
a) dilation of blood vessels b) a decrease in he number of mitochondria c) muscle atrophy d) an increase in the resting heart rate |
a) dilation of blood vessels
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The partial contraction observed in resting muscle is called
a) muscle tone b) isometric contraction c) isotonic contraction d) relaxation |
a) muscle tone
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Pushing the feet against the floor is a example of a
a) isometric contraction b) muscle tone c) isotonic contraction d) isometric and isotonic contraction |
a) isometric contraction
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A muscle that steadies body parts dueing a movemtn is called a
a) antagonist b) synergist c) prime mover d) extrinisic muscle |
b) synergist
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In anatomic lever systems the fulcrum is the
a) bursa b) insertion c) bone d) joint |
d) joint
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A term referring to a ring shaped muscle is
a) obicularis b) levator c) rectus d) oris |
a) obicularis
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A muscle that raises a body part is a
a) flexor b) levator c) adductor d) superioris |
b) levator
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In naming muscles, the suffix -ceps means
a) shape b) attachment points c) size d) direction of fibers |
b) attachment points
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Which of the following is NOT a muscle of the head?
a) sacrospinals b) msseter c) temporal d) buccinator |
a) sacrospinalis
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Which of the following is NOT a muscle of the abdomen?
a) internal oblique b) transversus abdominis c) iliopsoas d) rectus abdominis |
c) iliopsoas
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A muscle that moves the head is the
a) gracilis b) sternocleidomastod c) serratus anterior d) rotator cuff |
b) sternocleidomastoid
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The levator ani is found in the
a) skull b) back c) perineum d) eye |
c) perineum
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The muscle that closes the lips is the
a) obicularis oris b) obicularis c) buccinator d) masseter |
a) obicularis oris
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The hamstring muscles act to
a) extend the leg b) flex the leg c) flex the thigh d) adduct the thigh |
b) flex the leg
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Inflammation of connective tissues is called
a) myalgia b) fibrositis c) myositis d) fibromyalgia |
b) fibrositis
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