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Anatomy > Muscles > Flashcards

Muscles Flashcards

1
Q

Upper fibers: elevates scapula (shrug shoulders) rotates scapula
Middle fibers: retract scapula
Lower fibers: depress scapula

A

Trapezius

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2
Q

Extension of humerus
Adducts and medially rotates humerus (pull-up)

A

Latissimus Dorsi

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3
Q

Retracts scapula

A

Rhomboid Minor
Rhomboid Major

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4
Q

Elevates scapula

A

Levator Scapulae

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5
Q

Unilaterally: laterally flexes and rotates head to ipsilateral side
Bilaterally: extends head and neck

A

Splenius Capitis
Splenius Cervicis

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6
Q

Unilaterally: laterally flexes vertebral column to ipsilateral side
Bilaterally: extends vertebral column

A

Iliocostalis
Longissimus
Spinalis

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7
Q

Anterior fibers: flexes and internally rotates humerus
Middle fibers: abducts humerus
Posterior fibers: extends and externally rotates humerus

A

Deltoid

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8
Q

Initiates abduction of humerus

A

Supraspinatus

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9
Q

Externally rotates humerus

A

Infraspinatus
Teres Minor

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10
Q

Internally rotates humerus

A

Subscapularis

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11
Q

Adducts and internally rotates humerus

A

Teres Major

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12
Q

Adducts and internally rotates humerus

A

Pectoralis Major

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13
Q

Protracts scapula

A

Pectoralis Minor

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14
Q

Protracts scapula and holds scapula against rib cage

A

Serratus Anterior

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15
Q

Supinates forearm
Flexes elbow joint
Flexes shoulder joint
Innervation: musculocutaneous nerve

A

Biceps Brachii

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16
Q

Flexes and Adducts humerus

Innervation: musculocutaneous nerve

A

Coracobrachialis

17
Q

Flexes elbow joint

Innervation: musculocutaneous nerve

A

Brachialis

18
Q

Extends forearm
Extends arm long head only
Innervation: radial nerve

A

Triceps Brachii

19
Q

Elevates rib below

A

External intercostal

20
Q

Depresses rib above

A

Internal intercostal

21
Q

Contraction flattens diaphragm which decreases intrathoracic pressure allowing inspiration

A

Diaphragm

22
Q

Flexes trunk (sit-up) and compresses abdominal organs

A

Rectus Abdominus

23
Q

Bilaterally: compresses and supports abdominal organs
Unilaterally: lateral flexion of trunk, rotation of trunk

A

External Oblique
Internal Oblique

24
Q

Compresses abdominal organs

A

Transverse Abdominus

25
Q

Hip extension and lateral rotations of femur

A

Gluteus Maximus

26
Q

Abducts and medially rotates femur, keeps pelvis level when opposite leg is off ground (balancing on 1 leg)

A

Gluteus Medius
Gluteus Minimus

27
Q

Hip extension
Knee flexion
Medial rotation of leg

A

Semitendinosus
Semimembranosus
Innervation: tibial part of sciatic nerve

28
Q

Hip extension
Knee flexion
Lateral rotation of leg

A

Biceps Femoris

Innervation: tibial part of sciatic nerve

Anatomy (18 decks)

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