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Anatomy and Physiology > Anatomy II: Muscles/Origin/Insertion/Action > Flashcards

Anatomy II: Muscles/Origin/Insertion/Action Flashcards

1
Q

What is Origin?

A

Attachment to the bone, does not move bone

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2
Q

What is Insertion?

A

Attachment to the bone, moves the bone

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3
Q

What is Action?

A

What it is doing

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4
Q

What is Adduct?

A

Toward the midline

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5
Q

What is Abduct?

A

Away from the midline

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6
Q

What is Elevate?

A

Raising

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7
Q

What is Depress?

A

Lowering

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8
Q

What is Extend?

A

Increasing the angle

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9
Q

What is Flex?

A

Decreasing angle

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10
Q

What is Rotation?

A

Medial (toward midline) or lateral (away from midline)

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11
Q

Trapezius: Origin, insertion, action

A

Origin: Occipital bone, cervical, and thoracic vertebrae
Insertion: Scapula, clavicle
Action: Adduct, elevates and raises scapula, raises clavicle,

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12
Q

Deltoid: Origin, Insertion, action

A

Origin: clavicle, scapula
Insertion: Humerus
Action: Abduct arm

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13
Q

Levator Scapulae: origin, insertion, action

A

Origin: Clavicle vertebrae
Insertion: Scapula
Action: Raises scapula

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14
Q

Latissimus Dorsi: Origin, Insertion, action

A

Origin: Sacrum, ilium, lumbar, thoracic vertebrae, ribs
Insertion: Humerus
Action: Elevates, adducts, rotates arm medially; pulls downward; stabilizes scapula

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15
Q

Rhomboideus Major: Origin, insertion, action

A

Origin: Thoracic vertebrae
Insertion: Scapula
Action: Elevates, adducts scapula and rotates it downward; stabilizes scapula

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16
Q

Rhomboideus Minor: Origin, insertion, action

A

Origin: Cervical and thoracic vertebrae
Insertion: Scapula
Action: Elevates, adducts scapula and rotates it downward; stabilizes scapula

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17
Q

Infraspinatus: Origin, insertion, action

A

Origin: Scapula
Insertion: Humerus
Action: Laterally rotates and adducts arm

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18
Q

Supraspinatus: Origin, insertion, action

A

Origin: Scapula
Insertion: Humerus
Action: Abducts arm

19
Q

Terres Major: Origin, insertion, action

A

Origin: Scapula
Insertion: Humerus
Action: Extends, adducts, rotates humerus

20
Q

Splenius: Origin, insertion, action

A

Origin: cervical and thoracic vertebrae
Insertion: Temporal and occipital bone
Action: extends and rotates head

21
Q

Serratus Ventralis (anterior): Origin, insertion, action

A

Origin: Ribs
Insertion: Scapula
Action: Abducts scapula and rotates it upward

22
Q

Serratus Ventralis (posterior): Origin, insertion, action

A

Origin: Vertebrae
Insertion: Ribs
Action: elevates ribs

23
Q

Spinalis (thoracis): Origin, insertion, action

A

Origin: thoracic and lumbar vertebrae
Insertion: thoracic vertebrae
Action: extends vertebrae column

24
Q

Longissimus thoracis: Origin, insertion, action

A

Origin: sacrum
Insertion: thoracic vertebrae and ribs
Action: Extend and bend vertebral column

25
Q

Longissimus Cervicis: Origin, insertion, action

A

Origin: thoracic vertebrae
Insertion: cervical vertebrae
Action: Extends cervical vertebrae

26
Q

Longissimus Capitis: Origin, insertion, action

A

Origin: thoracic and cervical vertebrae
Insertion: Temporal bone
Action: Laterally flex and extend head

27
Q

Iliocostalis: Origin, insertion, action

A

Origin: ribs
Insertion: C7 vertebrae; lower ribs
Action: extends and bends vertebral column

28
Q

Multifidus: Origin, insertion, action

A

Origin: Sacrum, ilium, C, T, L vertebrae
Insertion: vertebrae above origin
Action: Straightens and rotates vertebral column

29
Q

Pectoralis Major: Origin, insertion, action

A

Origin: Clavicle, sternum, ribs
Insertion: humerus
Action: Flexes, adducts and rotates shoulder upward

30
Q

Pectoralis Minor: Origin, insertion, action

A

Origin: Ribs
Insertion: Scapula
Action: Depresses scapula, rotates shoulder upward

31
Q

External Oblique: Origin, Insertion, action

A

Origin: Ribs
Insertion: ilium; linea alba
Action: Compresses abdomen, flexes vertebral column

32
Q

Internal Oblique: Origin, insertion, action

A

Origin: ilium
Insertion: lower ribs, linea alba
Action: Compresses abdomen, flexes vertebral column

33
Q

Transversus Abdominis: Origin, insertion, action

A

Origin: ilium, ribs
Insertion: Sternum, linea alba, pubis
Action: compresses abdomen, flexes vertebral column

34
Q

Rectus Abdominis: Origin, insertion, action

A

Origin: pubis
Insertion: sternum, ribs
Action: compresses abdomen, flexes vertebral column

35
Q

Sternocleidomastoid: Origin, Insertion, Action

A

Origin: Sternum, clavicle
Insertion: temporal bone
Action: flex and rotate head

36
Q

Sternohyoid: Origin, insertion, action

A

Origin: sternum (manubrium), clavicle
Insertion: hyoid bone
Action: Depresses hyoid bone

37
Q

Mylohyoid: Origin, insertion, action

A

Origin: Mandible
Insertion: Hyoid bone
Action: elevates floor of mouth

38
Q

Digastric: Origin, insertion, action

A

Origin: mandible
Insertion: hyoid bone
Action: depresses floor of mouth

39
Q

Masseter: Origin, insertion, action

A

Origin: zygomatic arch; maxilla
insertion: mandible
Action: elevates and protracts mandible

40
Q

Temporalis: Origin, insertion, action

A

Origin: Temporal bone
Insertion: mandible
Action: elevates mandible

41
Q

Sternothyroid: Origin, insertion, action

A

Origin: sternum (manubrium)
Insertion: Thyroid cartilage
Action: depresses thyroid cartilage

42
Q

Thyrohyoid: Origin, insertion, action

A

Origin: thyroid cartilage
Insertion: hyoid bone
Action: elevates thryoid cartilage, depresses hyoid bone

43
Q

Cricothyroid: Origin, insertion, action

A

Origin: cricoid cartilage of larynx
Insertion: thyroid cartilage
Action: produce tension and elongates vocal cords

44
Q

Geniohyoid: Origin, insertion, action

A

Origin: Mandible
Insertion: hyoid bone
Action: Draws hyoid bone and tongue anteriorly

Anatomy and Physiology (5 decks)

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