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CSCC BIO 2300 UNIT 3 QUESTIONS WITH CORRECT ANSWERS

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CSCC BIO 2300 UNIT 3 QUESTIONS WITH CORRECT ANSWERS

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Axioappendicular Muscles


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General attachments: From axial skeleton to appendicular skeleton

General actions: Significant actions on pectoral girdle or at shoulder joint




Describe the path of the posterior tibial artery in detail (including what it become)


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Passes posterior to medial malleolus with deep muscles of posterior leg.
( TOM, DICK, AN HARRY)
Becomes medial and lateral plantar aa

,Describe the action of the lateral compartment leg muscles
*each tendon of the lateral leg muscles passes posterior to what bony feature


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Fibularis longus & brevis
-Evert the fastest
-tendons course posterior to lateral malleolus; therefore are also (weak)
plantar flexors of foot




Pubic tubercle


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Describe the joint capsule structure of the shoulder joint


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-Glenohumeral ligaments
-Attached from/to margin of glenoid cavity & labrum
-Anatomical neck of humerus
-very loose
-weak inferiorly
-no rotator cuff
-laxed when arm is adducted
-prone to dislocation

, -fibrous capsule lined by synovial membrane
-articular surfaces lined by hyaline cartilage




Describe the adductor hiatus


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A gap in the adductor magnus muscles distal attachment to the femur




Describe each of the 3 ligaments that ONLY involve the scapula and the clavicle


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1. Acromioclavicular (AC) joint/ligament
2. Coracoclavicular ligament
3. Coracoacrominal Arch/Ligament prevents superior dislocation of head
of humerus




Describe the gluteal muscles


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General attachment: From hip bone to femur (or connective tissue of thigh)

General actions: Significant actions of femur at the hip joint




Name the muscles of the intermediate layer at the deep layer

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Flexor Digitorum Profundus M
Flexor Pollicis Longus M




What is the common proximal attachment for the superficial layer of anterior forearm
muscles?


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Medial epicondyle




Gluteus Maximus actions


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On femur: extension at hip, assists with lateral rotation at hip




Name the muscles of the intermediate layer of the anterior forearm


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Flexor digitorum superficialis M
(if muscles act on the digits, they can also act at the wrist)




Rhomboid Major & Minor

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