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Drexel Anatomy 101 final -Muscles Questions and Answers £7.16
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Drexel Anatomy 101 final -Muscles Questions and Answers

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Drexel Anatomy 101 final -Muscles Muscle Attachment - Answer- 2 or more attachment sites almost all cross one synovial joint Fibularis longus (outer area of the leg)(superior to brevis) - Answer- Plantar flexion and eversion of foot Fibularis Brevis (lower leg)(deep to longus) - Answer...

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  • June 20, 2024
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  • 2023/2024
  • Exam (elaborations)
  • Questions & answers
  • muscle attachment
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Drexel Anatomy 101 final -Muscles
Muscle Attachment - Answer- 2 or more attachment sites

almost all cross one synovial joint

Fibularis longus (outer area of the leg)(superior to brevis) - Answer- Plantar flexion
and eversion of foot

Fibularis Brevis (lower leg)(deep to longus) - Answer- plantar flexes and everts foot

Agonist - Answer- prime mover (*protagonist =main character)

Flexion : bicep (contracts) versus triceps (relaxes)

Synergist - Answer- assists agonist with stability and extra force

*Syn = together

antagonist - Answer- opposer of the agonist used to protect and control

pectoralis major (superior to the pectoralis minor) - Answer- Prime shoulder flexor
pulls on the humerus to create lateral, vertical, or rotational motion of the arm

Adduction and medial rotation of the humerus

pectoralis minor muscle (deep to the pectoralis major) - Answer- protracts and
depresses scapula

Deltoid - Answer- prime abductor of the shoulder

movement of the arm at the shoulder joint

(anterior fibers)flex and medially rotates humerus

(posterior fibers) extend and laterally rotate humerus

latissimus dorsi (posterior) - Answer- prime arm extensor

adducts and medially rotates humerus/shoulder

*looks like wings

Rotator cuff (4 muscles) - Answer- form a "cuff" over the head of the
humerus(socket) to protect it and allow further movement

helps raise and "rotates" your arm

, prone to injury

supraspinatus, infraspinatus
teres minor, subscapularis

Supraspinatus - Answer- Abducts the shoulder

stabilizes the head of the humerus in glenoid cavity

one of the "rotator cuff" muscles

*full abduction delivery when throwing a ball

infraspinatus - Answer- Laterally rotates and adducts the shoulder

stabilizes the head of the humerus in glenoid cavity

one of the "rotator cuff" muscles

*slow the arm down at the end of a pitch

Subscapularis - Answer- medial rotation of the humerus at shoulder.

Stabilizes the head of the humerus in glenoid cavity

one of the "rotator cuff" muscles

*medially rotates the arm during the wind up in baseball

teres minor - Answer- rotates arm laterally
one of the "rotator cuff" muscles

teres major - Answer- extends, adducts, and medially rotates arm

psosas major illiacus - Answer- the joined psoas and the iliacus muscles

The two muscles are separate in the abdomen, but usually merge in the thigh.

strongest of the hip flexors (hip flexion)

rectus femoris - Answer- a bulk of muscle located in the superior, anterior middle
compartment of the thigh

the only muscle in the quadriceps group that "Crosses the hip"

extends knee and flexes thigh at hip

Sartorius - Answer- weakly Flexes, abducts, and laterally rotates thigh at the hip

flexes and medially rotates legs

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