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A&P Lab I - muscles > Origin and Insertion > Flashcards

Origin and Insertion Flashcards

1
Q

Sternocleidomastoid

A

Origin: Manubrium of sternum; clavicle
Insertion: Mastoid process of temporal bone
Movement: neck flexion and contralateral rotation

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2
Q

External oblique

A

Origin: Lower ribs
Insertion: Linea alba, pubic crest, iliac crest
Movement: Flexion, lateral flexion and rotation of lumbar vertebrae; abdominal compression (rotate trunk and spine)

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3
Q

Rectus abdominis

A

Origin: Inguinal ligament; iliac crest; costal cartilages of lower ribs
Insertion: Xiphoid process, costal cartilages of ribs
Movement: Flexion and rotation of lumbar vertebrae; abdominal compression

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4
Q

Trapezius

A

Origin: Occipital bone; vertebrae
Insertion: Acromion and spinous process of scapula; clavicle
Movement: Extend neck, move scapula, tilt/turn head and neck

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5
Q

Pectoralis major

A

Origin: Clavicle, sternum, costal cartilages of ribs 1-6
Insertion: Humerus
Movement: Prime mover of shoulder flexion; medial rotation of arm; Shoulder adduction (adducts shoulders horizontally to pull arms across the chest)

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6
Q

Deltoid

A

Origin: Clavicle, acromion and spine of scapula
Insertion: Deltoid tuberosity of humerus
Movement: Prime mover of shoulder abduction;
When only specific fibers are active ➞ Shoulder flexion, extension, and rotation of arm

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7
Q

Latissimus dorsi

A

Origin: Lower vertebrae, ribs, iliac crest
Insertion: Humerus
Movement: Prime mover of shoulder extension; shoulder adduction; medial rotation of arm

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8
Q

Biceps brachii

A

Origin: Coracoid process and glenoid tubercle of scapula
Insertion: Radial tuberosity
Movement: Elbow flexion; forearm supination

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9
Q

Brachialis

A

Origin: Humerus
Insertion: Coronoid process of ulna
Movement: Prime mover of elbow flexion

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10
Q

Triceps brachii - lateral, long, and medial head

A

Origin: Humerus
Insertion: Olecranon process of ulna
Movement: Prime mover of elbow extension

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11
Q

Adductor longus

A

Origin: Pubic symphysis
Insertion: Iliotibial tract
Movement: Prime movers of hip adduction; hip flexion; medial rotation of thigh

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12
Q

Adductor magnus

A

Origin: Ischium, pubis
Insertion: Femur
Movement: Prime movers of hip adduction; hip flexion; medial rotation of thigh

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13
Q

Adductor brevis

A

Origin: Pubis
Insertion: Femur
Movement: Prime movers of hip adduction; hip flexion; medial rotation of thigh

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14
Q

Gracilis

A

Origin: Pubis
Insertion: Medial surface of tibia
Movement: Hip adduction and flexion; medial rotation of thigh; knee flexion

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15
Q

Rectus femoris

A

Origin: Anterior inferior iliac spine, acetabulum
Insertion: Tibial tuberosity, patella
Movement: Prime mover of knee extension; hip flexion

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16
Q

Vastus lateralis

A

Origin: Greater trochanter of femur
Insertion: Tibial tuberosity, patella
Movement: Prime mover of knee extension

17
Q

Vastus medialis

A

Origin: Femur
Insertion: Tibial tuberosity, patella
Movement: Prime mover of knee extension

18
Q

Vastus intermedius

A

Origin: Femur
Insertion: Tibial tuberosity, patella
Movement: Prime mover of knee extension

19
Q

Gluteus maximus

A

Origin: Ilium, sacrum, coccyx
Insertion: Femur, iliotibial tract
Movement: Prime mover of hip extension; lateral rotation of thigh

20
Q

Gluteus medius

A

Origin: Ilium
Insertion: Greater trochanter of femur
Movement: Prime mover of hip abduction; medial rotation of thigh

21
Q

Biceps femoris

A

Origin: Ischial tuberosity, femur
Insertion: Head of fiubula, lateral condyle of tibia
Movement: Prime mover of hip extension and knee flexion; lateral rotation of thigh

22
Q

Semitendinosus

A

Origin: Ischial tuberosity
Insertion: Medial surface of proximal of tibia
Movement: Prime mover of hip extension and knee flexion; medial rotation of thigh

23
Q

Semimembranosus

A

Origin: Ischial tuberosity
Insertion: Medial condyle of tibia, lateral condyle of femur
Movement: Prime mover of hip extension and knee flexion; medial rotation of thigh

24
Q

Sartorius

A

Origin: Anterior superior iliac spine
Insertion: Medial aspect of proximal tibia
Movement: Hip flexion and abduction; knee flexion; lateral rotation of thigh

25
Q

Tibialis anterior

A

Origin: Lateral condyle of tibia
Insertion: Metatarsal I, tarsal
Movement: Prime mover of dorsiflexion; foot inversion

26
Q

Gastrocnemius

A

Origin: Medial and lateral condyles of femur
Insertion: Calcaneus
Movement: Prime mover of plantar flexion; knee flexion

27
Q

Soleus

A

Origin: Proximal tibia and fibula
Insertion: Calcaneus
Movement: Prime mover of plantar flexion

A&P Lab I - muscles (1 decks)

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