A&p Lab-Muscles

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Back 1

INTERNAL & EXTERNAL INTERCOSTALS

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Back 2

RECTUS ABDOMINUS

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Back 3

LATTISIMUS DORSI

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Back 4

ERECTOR SPINAE

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Back 5

LINEA ALBA

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Back 6

TRAPEZIUS

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Back 7

PECTORALIS MAJOR

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Back 8

PECTORALIS MINOR

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Back 9

SERRATUS ANTERIOR

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Back 10

LATTISIMUS DORSI

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Back 11

DELTOID

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Back 12

BICEPS BRACHII

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Back 13

BRACHIALIS

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Back 14

BRACHIORADIALIS

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Back 15

TRICEPS BRACHII

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Back 16

ILIOPSOAS

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Back 17

GLUTEUS MAXIMUS

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Back 18

SARTORIUS

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Back 19

QUADRICEPS GROUP:
RECTUS FEMORIS, VASTUS LATERALIS, VASTUS MEDIALIS, VASTUS INTERMEDIUS

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Back 20

HAMSTRING GROUP:
BICEPS FEMORIS, SEMITENDINOSUS, SEMIMEMBRANOSUS

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Back 21

GASTROCNEMIUS

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Back 22

FLEXOR DIGITORUM LONGUS

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Back 23

TIBIALIS ANTERIOR

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Back 24

EXTENSOR DIGITORUM LONGUS

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Back 25

PATELLAR TENDON

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Back 26

CALCANEAL TENDON

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Back 27

SOLEUS

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Back 28

TEMPORALIS

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Back 29

MASSETER

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Back 30

FRONTALIS

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Back 31

ORBICULARIS OCULI

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Back 32

ORBICULARIS ORIS

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Back 33

TRAPEZIUS

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Back 34

STERNOCLEIDOMASTOID

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Back 35

PLATYSMA

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Back 36

BUCCINATOR

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Back 37

NASALIS

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Back 38

ZYGOMATICUS

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Back 39

SUPRAHYOID/ INFRAHYOID

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FLEXION

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Bending movement that decreases the angle between two parts. Bending the elbow, or clenching a hand into a fist, are examples of flexion. When sitting down, the knees are flexed. Flexion of the hip or shoulder moves the limb forward (towards the anterior side of the body).

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EXTENSION

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The opposite of flexion; a straightening movement that increases the angle between body parts. In a conventional handshake, the fingers are fully extended. When standing up, the knees are extended. Extension of the hip or shoulder moves the limb backward (towards the posterior side of the body).

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ABDUCTION

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A motion that pulls a structure or part away from the midline of the body (or, in the case of fingers and toes, spreading the digits apart, away from the centerline of the hand or foot). Abduction of the wrist is called radial deviation. Raising the arms laterally, to the sides, is an example of abduction.

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ADDUCTION

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A motion that pulls a structure or part towards the midline of the body, or towards the midline of a limb. Dropping the arms to the sides, or bringing the knees together, are examples of adduction. In the case of the fingers or toes, adduction is closing the digits together. Adduction of the wrist is called ulnar deviation.

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ROTATION

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A motion that occurs when a part turns on its axis. The head rotates on the neck, as in shaking the head 'no'.

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ELEVATION

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Movement in a superior direction.

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DEPRESSION

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Movement in an inferior direction, the opposite of elevation.

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CIRCUMDUCTION

Back 47

The circular (or, more precisely, conical) movement of a body part, such as a ball-and-socket joint or the eye. It consists of a combination of flexion, extension, adduction, and abduction. "Windmilling" the arms or rotating the hand from the wrist are examples of circumductive movement.

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RETRACTION

Back 48

Posterior movement of the arms at the shoulders.