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ap chap 10
the muscular system
| Question | Answer |
|---|---|
| which of the following muscles is involved in producing horizontal wrinkles in the forehead? | the frontal belly of the epicranius |
| a muscle group that works with and assists the action of a prime mover is a | synergist |
| which of the following is not a member of the hamstrings? | gracilis |
| which generalization concerning movment by skeletal muscles is not true? | during contration the two articulating bones move equally |
| the extensor carpi radialis brevis____. | extends and abducts the wrist and is short |
| which of the following muscles is involved in crossing one leg over the other while in a sitting position? | the sartorius |
| what are the levers that operate at a mechanical advantage called? | functional levers |
| which of the following muscles does not act in plantar felxion? | popliteus |
| the supraspinatus is named for its location on the posterior aspect of the scapula above the spine. What is its action | to stabalize the shoulder joint and help prevent downward location of the humerus and to assist in abduction |
| which of the following muscles is involved in inversion at the ankle joint? | tibialis anterior |
| which type of lever is demonstrated by using scissors? | a first class lever |
| paralysis of which of the following would make an individual unable to flex the thigh? | iliopsoas and rectus femoris |
| paralysis of which of the following muscles would make an individual unable to flex the knee? | hamstring muslcles |
| what muscle is responsible for keeping your toes from dragging when walking? | fibularis tertius |
| when the term biceps, triceps or quadriceps forms part of a musceles name what does it tell you about the muscle? | the muscle has two, three or four origins respectively |
| what are the muscles that are found at the openings of the body collectively called? | circular muscles |
| tennis players often complain about pain in the arm(foream) that swings the racquet. What muscle is usually strained under these conditions? | the brachioradialis |
| which muscles are contracted to exhale forcibly? | internal intercostals and rectus abdominus |
| in a pennate muscle pattern ____. | muscles look like a feather |
| which of the following statements is true regarding the total number of skeletal muscles in the human body? | there are over 600 muscles in the body |
| which of the following does not compress the abdomen? | coccygeus |
| which of the following muscles is a flexor of the thigh? | adductor magnus |
| first class levers____. | in the body can operate at a mechanical advantage or mechanical disadvantage, depending on specific location. |
| a cute, little curly haired child is sitting behind you in church. you turn around for a moment and she sticks her tounge out at you. Which tongue muscle did she use? | genioglossus |
| the name of muscles often indicate the action of the muscle. what does the term levator mean? | the muscle elevates and or adducts a region |
| spasms of this straplike muscle often result in wryneck or torticollis. | sternocleidmastoid |
| a nursing infant develops a powerful sucking muscle that adults also use for whistling. What is this muscle called? | buccinator |
| if a lever operates at a mechanical disadvantage it means that the ____ | load is far from the fulcrum and the effort is applied near the fulcrum |
| what is a muscle that provides the major force for producing a specific movement called? | an agonist |
| adductor magnus, adductor longus and adductor brevis are parts of a large muscle mass of the ____ | medial compartment of the thigh |
| which of the follwing describes the suprahyoid muscles? | they are a group of muscles that lie superior to the hyoid bone and help form the floor of the oral cavity. |
| if L=load, f=fulcrum and e=effort, what type of lever system is described as LEF | third class lever |
| which of the choices below is the major muscle for breathing? | diaphragm |
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