Wk 8 Lab Flashcards

1
Q

Origin

A

More stationary attachment point of a muscle

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2
Q

Insertion

A

More mobile attachment point of a muscle

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3
Q

Aponeurosis

A

broad, flat, sheet-like tendon connecting muscles to bone or other muscles

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4
Q

Epicranius frontalis origin, insertion, and action

A

Origin: aponeurosis
Insertion: skin of eyebrows
Action: raises eyebrows

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5
Q

Epicranius occipitalis origin, insertion, and action

A

Origin: occipital bone
Insertion: aponeurosis
Action: pulls scalp posteriorly

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6
Q

Orbicularis oculi origin, insertion, and action

A

Origin: frontal, maxilla
Insertion: skin of eyelid
Action: closes eyelid

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7
Q

Temporalis origin, insertion, and action

A

Origin: temporal fossa
Insertion: coronoid process - mandible
Action: elevates and retracts mandible

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8
Q

Masseter origin, insertion, and action

A

Origin: zygomatic arch - maxilla
Insertion: angle and ramus - mandible
Action: elevates mandible

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9
Q

Buccinator origin, insertion, and action

A

Origin: molar region - mandible, maxilla
Insertion: orbicularis oris
Action: compresses cheek

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10
Q

Orbicularis oris origin, insertion, and action

A

Origin: maxilla, mandible
Insertion: skin of mouth
Action: closes lips

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11
Q

Zygomaticus major and minor origin, insertion, and action

A

Origin: zygomatic bone
Insertion: skin/muscle at corners of mouth
Action: elevates corners of mouth

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12
Q

Risorius origin, insertion, and action

A

Origin: fascia of masseter
Insertion: skin at angle of mouth
Action: draws corners of lips laterally

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13
Q

Sternocleidomastoid origin, insertion, and action

A

Origin: manubrium, clavicle
Insertion: mastoid process - temporal
Action: flexes neck, head rotation

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14
Q

Anterior, middle, and posterior scalenes origin, insertion, and action

A

Origin: transverse process
Insertion: ribs 1 and 2
Action: rotate neck, elevate ribs

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15
Q

Levator scapulae origin, insertion, and action

A

Origin: transverse process
Insertion: scapula
Action: elevates and adducts scapula

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16
Q

Trapezius origin, insertion, and action

A

Origin: occipital
Insertion: acromion, spine
Action: extend neck, raise, rotate, and adduct scapula

17
Q

Latissimus dorsi origin, insertion, and action

A

Origin: spinous process - T6-L5, ribs 8-12
Insertion: humerus
Action: extend, adduct, medially rotate arm

18
Q

Rhomboid major origin, insertion, and action

A

Origin: spinous process T3-T5
Insertion: medial scapula
Action: retract and stabilize scapula

19
Q

Rhomboid minor origin, insertion, and action

A

Origin: spinous process C7-T1
Insertion: medial scapula
Action: retract and stabilize scapula

20
Q

Serratus anterior origin, insertion, and action

A

Origin: ribs 1-8
Insertion: medial scapula
Action: scapula forward and lateral rotation

21
Q

Erector spinae origin, insertion, and action

A

Origin: transverse process C7-T12
Insertion: occipital bone, cervical vertebrae
Action: extend neck and vertebral column

22
Q

Diaphragm origin, insertion, and action

A

Origin: xiphoid process; ribs
Insertion: diaphragm tendon
Action: mover of inspiration

23
Q

External intercostals origin, insertion, and action

A

Origin: inferior border of superior rib
Insertion: superior border of inferior rib
Action: elevate rib cage, inspiration

24
Q

Internal intercostals origin, insertion, and action

A

Origin: superior border of inferior rib
Insertion: inferior border of superior rib
Action: depress rib cage, expiration

25
Q

Pectoralis major origin, insertion, and action

A

Origin: clavicled, sternum, ribs 1-6
Insertion: humerus
Action: flex, medial rotation and adduction of arm

26
Q

Pectoralis minor origin, insertion, and action

A

Origin: ribs 3-5
Insertion: coracoid process
Action: elevate ribs and sacupla forward

27
Q

Rectus abdominus origin, insertion, and action

A

Origin: pubic crest, pubic symphysis
Insertion: xiphoid process, rib cartilage 5-7
Action: flex and rotate vertebral column

28
Q

External oblique origin, insertion, and action

A

Origin: anterior ribs 5-12
Insertion: pubic crest and tubercle, iliac crest
Action: trunk rotation, lateral flexion, depress ribs

29
Q

Internal oblique origin, insertion, and action

A

Origin: iliac crest
Insertion: ribs 9-12, pubic crest
Action: trunk rotation, lateral flexion, depress ribs

30
Q

Transverse abdominis origin, insertion, and action

A

Origin: iliac crest, cartilages of ribs 6-12
Insertion: pubic crest
Action: compress abdomen