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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
Naming Skeletal Muscles: Direction of Muscle Fibers
e.g. Abdominis: Rectus = parallel to midline; Transverse = perpendicular to midline; Oblique = diagonal to midline
26
Naming Skeletal Muscles: Number of Origins
e.g. Biceps (2); Triceps (3)
27
Naming Skeletal Muscles: Location of Muscle Attachment Points
e.g. sternocleidomastoid (sternum, clavicle & mastoid process)
28
Naming Skeletal Muscles: Action
e.g. Flexors (flexorcarpiulnaris), Extensors, ABductors, ADductors,
29
How many rotator cuff muscles?
4 muscles
30
What are the 4 rotator cuff muscles?
1. Supraspinatus; 2. Infraspinatus; 3. Teres Minor; and 4. Subscapularis "SITS"
31
Rotator Cuff Muscle: Supraspinatus*
General Location: Posterior, Shoulder, Deep Origin: Supraspinous fossa of the Scapula Insertion: Greater tubercle of the Humerus (Superior facet)
32
Rotator Cuff Muscle: Infraspinatus*
General Location: Posterior, Shoulder, Superficial Origin: Infraspinous fossa of the Scapula Insertion: Greater tubercle of the Humerus (Middle facet)
33
Rotator Cuff Muscle: Teres Minor*
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
Rotator Cuff Muscle: Subscapularis*
General Location: Anterior, Scapula, Deep Origin: Subscapular fossa of the Scapula Insertion: Lesser tubercle of the Humerus
35
How many scapula & posterior arm muscles?
2 muscles
36
What are the 2 scapula & posterior arm muscles?
1. Teres Major; and 2. Triceps Brachii
37
Scapula & Posterior Arm Muscle: Teres Major*
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
Scapula & Posterior Arm Muscle: Triceps Bracii*
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
How many anterior arm muscles?
2 muscles
40
What are the 2 anterior arm muscles?
1. Brachialis; and 2. Biceps Brachii
41
Anterior Arm Muscle: Brachialis*
GL: Anterior, Arm, Deep O: Distal 1/2 of the anterior surface of the Humerus I: Coronoid process and tuberosity of the Ulna
42
Anterior Arm Muscle: Biceps Brachii*
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
How many lateral shoulder (shoulder cap) muscles?
1 muscle
44
What is the 1 lateral shoulder (shoulder cap) muscle?
1. Deltoid
45
Lateral Shoulder Muscle: Deltoid*
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
How many deep layer of the forearm muscles?
1 muscle
47
What is the 1 deep layer of the forearm muscle?
1. Supinator
48
Deep Layer of the Forearm Muscle: Supinator
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
How many superficial layer of the posterior forearm muscles?
2 muscles
50
What are the 2 superficial layer of the posterior forearm muscles?
1. Extensor Carpi Radialis Brevis; and 2. Extensor Carpi Radialis Longus
51
Superficial Layer of the Posterior Forearm Muscle: Extensor Carpi Radialis Brevis*
GL: Posterior, Forearm, Superficial O: Lateral epicondyle of the Humerus (common extensor tendon) I: Base of the 3rd Metacarpal
52
Superficial Layer of the Posterior Forearm Muscle: Extensor Carpi Radialis Longus*
GL: Posterior, Forearm, Superficial O: Lateral supracondylar ridge of the Humerus I: Base of the 2nd Metacarpal
53
How many deep layer of the posterior forearm muscles?
4 muscles
54
What are the 4 deep layer of the posterior forearm muscles?
1. Extensor Indicis; 2. Extensor Pollicis Brevis; 3. Extensor Pollicis Longus; and 4. ABductor Pollicis Longus
55
Deep Layer of the Posterior Forearm Muscle: Extensor Indicis
GL: POSTERIOR, FOREARM, DEEP O: Ulna & Interosseous membrane I: Base of the intermediate Phalanx of the index finger (extensor expansion)
56
Deep Layer of the Posterior Forearm Muscle: Extensor Pollicis
GL: POSTERIOR, FOREARM, DEEP O: Radius & Interosseous membrane I: Base of the proximal Phalanx of the thumb
57
Deep Layer of the Posterior Forearm Muscle: Extensor Pollicis Longus
GL: POSTERIOR, FOREARM, DEEP O: Middle 1/3 of the Ulna and Interosseous membrane I: Base of the distal Phalanx of the thumb
58
Deep Layer of the Posterior Forearm Muscle: ABductor Pollicis Longus
GL: POSTERIOR, FOREARM, DEEP O: Ulna, Radius and Interosseous membrane I: Base of the 1st Metacarpal
59
The separation between what 2 tendons creates the anatomical snuffbox?
1. Extensor Pollicis Brevis; and 2. Extensor Pollicis Longus
60
How many superficial layer of the posterior forearm muscles?
3 muscles + 1 retinaculum
61
What are the 3 superficial layer of the posterior forearm muscles + 1 retinaculum?
1. Extensor Digitorum; 2. Extensor Carpi Ulnaris; 3. Extensor Retinaculum; and 4. Anconeus
62
Superficial Layer of the Posterior Forearm Muscle: Extensor Digitorum*
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
Superficial Layer of the Posterior Forearm Muscle: Extensor Capri Ulnaris*
GL: Posterior, Forearm, Superficial O: Lateral epicondyle of the Humerus (common extensor tendon) I: Base of the 5th Metacarpal
64
Superficial Layer of the Posterior Forearm Retinaculum: Extensor Retinaculum
GL: CONNECTIVE TISSUE BAND AROUND THE POSTERIOR WRIST O: Band attaches at the distal Radius and Ulna
65
Superficial Layer of the Posterior Forearm Muscle: Anconeus*
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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