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BIO 201 LAB - The Muscular System with correct answers 100% $7.59   Add to cart

Exam (elaborations)

BIO 201 LAB - The Muscular System with correct answers 100%

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  • Course
  • BIO 201 BIO201 ANATOMY AND PHYSIOLOGY I
  • Institution
  • BIO 201 BIO201 ANATOMY AND PHYSIOLOGY I

Prime mover/agonist - - Correct Answer produces major movement accessory - - Correct Answer produces movement, but not the strongest/major movement antagonist muscle - - Correct Answer produces the opposite movement ex.) Biceps and triceps; when bending the elbow the biceps are the ant...

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  • September 23, 2024
  • 17
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BIO 201 BIO201 ANATOMY AND PHYSIOLOGY I
  • BIO 201 BIO201 ANATOMY AND PHYSIOLOGY I
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BIO 201 LAB - The Muscular System
with correct answers 100%
Prime mover/agonist - - Correct Answer produces major movement



accessory - - Correct Answer produces movement, but not the strongest/major movement



antagonist muscle - - Correct Answer produces the opposite movement



ex.) Biceps and triceps; when bending the elbow the biceps are the antagonist



origin - - Correct Answer attachment point of the muscle at one end; fixed attachment (doesn't move)



insertion - - Correct Answer attachment point of muscle at the other end; moves with contraction



aponeuroses - - Correct Answer tendon sheet



For each muscle, give...



a.) Origin

b.) Insertion

c.) Main action(s) - Correct Answer



HEAD AND NECK MUSCLES - Correct Answer



Occipitofrontalis (epicranius) - Correct Answer Origin: xxx



Insertion: xxx

,Action: facial expressions



ex.) raising eyebrows and wrinkling the forehead



Orbicularis oris - Correct Answer Origin: xxx



Insertion: xxx



Action:

- around opening to oral cavity

- purses/puckers the lips (closes mouth)

- will protrude lips if you continue to contract



Orbicularis oculi - Correct Answer Origin: xxx



Insertion: xxxx



Action:

- muscle around the eye

- allows blinking, squinting (closes the eyelids)



Platysma - Correct Answer Origin: xxx



Insertion: xxx



Action:

- depresses the mandible

- draws the corners of the lips inferiorly and laterally (frowning)

, Masseter - Correct Answer Origin: on the zygomatic processes (arch)



Insertion: onto the mandible



Action:

- elevates the mandible with force

- assists with protraction

- aids in chewing (mastication)



Temporalis - Correct Answer Origin: temporal fossa



Insertion: mandible



Action:

- elevates and retracts the mandible



Buccinator - Correct Answer Origin: mandible



Insertion: xxx



Action:

- ** draws corners of the mouth posteriorly (draws back)

- ** tenses cheek against your teeth

- holds food between teeth while chewing

- aids in whistling and smiling



Glossus group - Correct Answer includes:

a.) Styloglossus

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