chapter 11 Muscular system – Flashcards
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Most muscles cross at least one
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Joint
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The attachment of a muscle's tendon to the stationary bone is called (1)
The attachment of the muscle's other tendon to the movable bone is called (2)
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(1) origin
(2) insertion
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A lever is acted on at two different points by two different forces which are called the
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effort and load
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Motion will occur in a muscle when the ____ exceeds the _____
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the effort exceeds the load
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Which is NOT a common arrangement of muscle fascicles
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oval
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This type of fascicle arrangement has the fascicles spread over a broad area and converges at a thick central tendon
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Triangular
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The muscle that serves as the "prime move" during a movement is called the
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Agonist
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This type of muscle works by stabilizing the origin of the agonist so that it can act more efficiently
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Fixator
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Which is NOT a characteristic commonly used to name skeletal muscles?
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Thickness of fibers
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Which of the following pair of muscles have their insertion on the iliotribial tract? dw so much
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(e) tensor facia latae, gluteus maximus
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If f one is stabbed on the lateral side of the abdomen, what abdominal muscles, in order from superior to deep, will the knife go through?
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External oblique
Internal oblique
Transverse abdominis
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Protrusion of an organ through a structure that normally contains it is referred to as a
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Hernia
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Condition where the two eyeballs are not properly aligned is referred to as
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Strabismus
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Muscle with three origins
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triceps
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muscle that raises or elevates a body part is called
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Tensor
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muscle that decreases the size of an opening
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sphincter
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Which muscle participates in generating the facial expression of pouting?
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platysma
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Contraction of this muscle presses the cheeks against the teeth and lips as would be observed in whistling, blowing
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buccinator
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Which muscle moves the mandible
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masseter (think mastication)
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All of the following muscles move the eyeball EXCEPT
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internal oblique
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Which is a muscle whose insertion is found on the clavicle and acromion process of the scapula within the pectoral girdle?
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trapezius
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Which muscle is used to flex and abduct the hand at the wrist joint
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flexor carpi RADIALIS
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All of the following are muscles of the lower limb EXCEPT
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deltoid
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The infraspinatus muscle is a muscle that moves the
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upper arm
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Based on its name, which of the following best describes characteristics of the biceps femoris muscle?
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has two origins and found in upper leg
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The insertion of all the following muscles is the hyoid bone EXCEPT
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Sternothryoid
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This muscle, wich is found in the neck, functions to elevate the hyoid bone and helps press the tongue against the roof of the mouth during swallowing
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mylohyoid
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In which of the following body regions would you find the external anal sphincter?
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Perineum
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This deep fascia of the foot extends from the calcaneus to the phalanges of the toes and often becomes inflamed resulting in "painful heel syndrome"
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Plantar Aponeurosis
