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Bancroft: AP1 > Test #6 - Class 10: Muscles 1-4; Class 11: Muscles 12-19 > Flashcards

Test #6 - Class 10: Muscles 1-4; Class 11: Muscles 12-19 Flashcards

1
Q

Clay Color: Terra Cotta (TC)

A

Superficial muscles

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2
Q

Clay Color: Orange (O)

A

Intermediate muscles

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3
Q

Clay Color: Pink (P)

A

Deep muscles

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4
Q

Clay Color: Buff (B)

A

Connective tissue (tendons & ligaments)

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5
Q

Terminology: Muscle Belly

A

They fleshy, meaty portion of a muscle. It is innervated (nerve supply) & vascular (blood supply).

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6
Q

Terminology: Muscle Tendon

A

Parallel arranged collagen fibers which attach the muscle belly to bone.

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7
Q

What forces do muscle tendons resist?

A

Tensile forces (pulling apart)

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8
Q

Terminology: Aponeurosis

A

A broad sheet-like tendon which attaches muscle to muscle, bone or skin.

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9
Q

Terminology: Origin

A

The attachment of a muscle to the LESS moveable bone.

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10
Q

Terminology: Insertion

A

The attachment of muscle to the MORE moveable bone.

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11
Q

New Terminology: Proximal or Superior

A

Refers to the origin of a muscle attachment.

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12
Q

New Terminology: Distal or Inferior

A

Refers to the insertion of a muscle attachment.

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13
Q

Terminology: Fasciculi

A

A grouping of muscle cells surrounded by connective tissue.

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14
Q

How many arrangements of fasciculi?

A

4 arrangements

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15
Q

What are the 4 arrangements of fasciculi?

A
  1. Parallel; 2. Pennate; 3. Convergent; and 4. Circular
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16
Q

Arrangement of Fasciculi: Parallel

A

The fascicles are lined up in a parallel fashion.

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17
Q

Arrangement of Fasciculi: Pennate

A

“Winged or feathered”

  1. Unipennate (|/////); 2. Bipennate (/////|\\); and 3. Multipennate (⫞⫟⫠|⫞⫟⫠)
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18
Q

Arrangement of Fasciculi: Convergent

A

Fascicles converged at one point.

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19
Q

Arrangement of Fasciculi: Circular

A

Fascicles are arranged in a circle.

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20
Q

How many ways are skeletal muscles named?

A

7 ways

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21
Q

What are the 7 ways skeletal muscles are named?

A
  1. Relative size; 2. Location; 3. Shape; 4. Direction of muscle fibers; 5. Number of origins; 6. Location of the muscle attachment points; and 7. Action
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22
Q

Naming Skeletal Muscles: Relative Size

A

e.g. Gluteus maximus, gluteus medius, and gluteus minimus

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23
Q

Naming Skeletal Muscles: Location

A

e.g. Tibialis anterior

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24
Q

Naming Skeletal Muscles: Shape

A

e.g. Deltoid (triangular); Trapezius (trapezoidal)

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25
Q

Naming Skeletal Muscles: Direction of Muscle Fibers

A

e.g. Abdominis: Rectus = parallel to midline; Transverse = perpendicular to midline; Oblique = diagonal to midline

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26
Q

Naming Skeletal Muscles: Number of Origins

A

e.g. Biceps (2); Triceps (3)

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27
Q

Naming Skeletal Muscles: Location of Muscle Attachment Points

A

e.g. sternocleidomastoid (sternum, clavicle & mastoid process)

28
Q

Naming Skeletal Muscles: Action

A

e.g. Flexors (flexorcarpiulnaris), Extensors, ABductors, ADductors,

29
Q

How many rotator cuff muscles?

A

4 muscles

30
Q

What are the 4 rotator cuff muscles?

A
  1. Supraspinatus; 2. Infraspinatus; 3. Teres Minor; and 4. Subscapularis

“SITS”

31
Q

Rotator Cuff Muscle: Supraspinatus*

A

General Location: Posterior, Shoulder, Deep

Origin: Supraspinous fossa of the Scapula

Insertion: Greater tubercle of the Humerus (Superior facet)

32
Q

Rotator Cuff Muscle: Infraspinatus*

A

General Location: Posterior, Shoulder, Superficial

Origin: Infraspinous fossa of the Scapula

Insertion: Greater tubercle of the Humerus (Middle facet)

33
Q

Rotator Cuff Muscle: Teres Minor*

A

General Location: Posterior, Axilla, Superficial

Origin: Superior 1/2 of the Lateral border of the Scapula

Insertion: Greater tubercle of the Humerus (Inferior facet)

34
Q

Rotator Cuff Muscle: Subscapularis*

A

General Location: Anterior, Scapula, Deep

Origin: Subscapular fossa of the Scapula

Insertion: Lesser tubercle of the Humerus

35
Q

How many scapula & posterior arm muscles?

A

2 muscles

36
Q

What are the 2 scapula & posterior arm muscles?

A
  1. Teres Major; and 2. Triceps Brachii
37
Q

Scapula & Posterior Arm Muscle: Teres Major*

A

Gen Loc: Posterior, Axilla, Superficial

Origin: Inferior angle (lateral side of) and lower 1/2 of the lateral border of the Scapula

Insertion: Bicipital groove of the Humerus (medial lip)

38
Q

Scapula & Posterior Arm Muscle: Triceps Bracii*

A

Gen Loc: Posterior, Arm, Superficial

Origin: 1) Long Head: Infraglenoid tubercle of the Scapula; 2) Lateral Head: Posterior, proximal half of the Humerus; 3) Medial Head: Posterior, distal half of the Humerus

Insertion: Olecrannon process of the Ulna

39
Q

How many anterior arm muscles?

A

2 muscles

40
Q

What are the 2 anterior arm muscles?

A
  1. Brachialis; and 2. Biceps Brachii
41
Q

Anterior Arm Muscle: Brachialis*

A

GL: Anterior, Arm, Deep

O: Distal 1/2 of the anterior surface of the Humerus

I: Coronoid process and tuberosity of the Ulna

42
Q

Anterior Arm Muscle: Biceps Brachii*

A

GL: Anterior, Arm, Superficial

O: 1) Short Head: Coracoid process of the Scapula; 2) Long Head: Supraglenoid tubercle of the Scapula

I: Radial tuberosity and Aponeurosis of the Biceps Brachii to proximal Ulna

43
Q

How many lateral shoulder (shoulder cap) muscles?

A

1 muscle

44
Q

What is the 1 lateral shoulder (shoulder cap) muscle?

A
  1. Deltoid
45
Q

Lateral Shoulder Muscle: Deltoid*

A

GL: Lateral, Shoulder, Superficial

O: 1) Anterior: Lateral 1/3 of the Clavicle; 2) Middle: Acromion; 3) Posterior: Spine of the Scapula

I: Deltoid tuberosity of the Humerus

46
Q

How many deep layer of the forearm muscles?

A

1 muscle

47
Q

What is the 1 deep layer of the forearm muscle?

A
  1. Supinator
48
Q

Deep Layer of the Forearm Muscle: Supinator

A

GL: POSTERIOR, LATERAL, FOREARM, DEEP

O: Lateral epicondyle of the Humerus and posterior border of the Ulna

I: Proximal 1/3 of the Radius

49
Q

How many superficial layer of the posterior forearm muscles?

A

2 muscles

50
Q

What are the 2 superficial layer of the posterior forearm muscles?

A
  1. Extensor Carpi Radialis Brevis; and 2. Extensor Carpi Radialis Longus
51
Q

Superficial Layer of the Posterior Forearm Muscle: Extensor Carpi Radialis Brevis*

A

GL: Posterior, Forearm, Superficial

O: Lateral epicondyle of the Humerus (common extensor tendon)

I: Base of the 3rd Metacarpal

52
Q

Superficial Layer of the Posterior Forearm Muscle: Extensor Carpi Radialis Longus*

A

GL: Posterior, Forearm, Superficial

O: Lateral supracondylar ridge of the Humerus

I: Base of the 2nd Metacarpal

53
Q

How many deep layer of the posterior forearm muscles?

A

4 muscles

54
Q

What are the 4 deep layer of the posterior forearm muscles?

A
  1. Extensor Indicis; 2. Extensor Pollicis Brevis; 3. Extensor Pollicis Longus; and 4. ABductor Pollicis Longus
55
Q

Deep Layer of the Posterior Forearm Muscle: Extensor Indicis

A

GL: POSTERIOR, FOREARM, DEEP

O: Ulna & Interosseous membrane

I: Base of the intermediate Phalanx of the index finger (extensor expansion)

56
Q

Deep Layer of the Posterior Forearm Muscle: Extensor Pollicis

A

GL: POSTERIOR, FOREARM, DEEP

O: Radius & Interosseous membrane

I: Base of the proximal Phalanx of the thumb

57
Q

Deep Layer of the Posterior Forearm Muscle: Extensor Pollicis Longus

A

GL: POSTERIOR, FOREARM, DEEP

O: Middle 1/3 of the Ulna and Interosseous membrane

I: Base of the distal Phalanx of the thumb

58
Q

Deep Layer of the Posterior Forearm Muscle: ABductor Pollicis Longus

A

GL: POSTERIOR, FOREARM, DEEP

O: Ulna, Radius and Interosseous membrane

I: Base of the 1st Metacarpal

59
Q

The separation between what 2 tendons creates the anatomical snuffbox?

A
  1. Extensor Pollicis Brevis; and 2. Extensor Pollicis Longus
60
Q

How many superficial layer of the posterior forearm muscles?

A

3 muscles + 1 retinaculum

61
Q

What are the 3 superficial layer of the posterior forearm muscles + 1 retinaculum?

A
  1. Extensor Digitorum; 2. Extensor Carpi Ulnaris; 3. Extensor Retinaculum; and 4. Anconeus
62
Q

Superficial Layer of the Posterior Forearm Muscle: Extensor Digitorum*

A

GL: Posterior, Forearm, Superficial

O: Lateral epicondyle of the Humerus (common extensor tendon)

I: Distal Phalanges of the medial 4 digits (extensor expansion of the medial 4 digits)

63
Q

Superficial Layer of the Posterior Forearm Muscle: Extensor Capri Ulnaris*

A

GL: Posterior, Forearm, Superficial

O: Lateral epicondyle of the Humerus (common extensor tendon)

I: Base of the 5th Metacarpal

64
Q

Superficial Layer of the Posterior Forearm Retinaculum: Extensor Retinaculum

A

GL: CONNECTIVE TISSUE BAND AROUND THE POSTERIOR WRIST

O: Band attaches at the distal Radius and Ulna

65
Q

Superficial Layer of the Posterior Forearm Muscle: Anconeus*

A

GL: Posterior, Forearm, Superficial

O: Lateral epicondyle of the Humerus

I: Olecrannon process and lateral edge of the Ulna shaft

Bancroft: AP1 (10 decks)

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