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Back Up MSK > Set 2 > Flashcards

Set 2 Flashcards

1
Q

Anatomical plane…

  1. Divides into front and back parts:
  2. Divides into left and right parts:
  3. Divides into proximal and distal parts:
A
  1. Coronal or frontal plane (longitudinal)
  2. Sagittal plane (longitudinal)
  3. Transverse or axial plane
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2
Q

Skeletal muscle…

  • Proximal attachment:
  • Distal attachment:
  • Result of muscle contraction:
A
  • Proximal attachment: origin
  • Distal attachment: insertion
  • Muscle contraction: action
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3
Q

Smallest subunits of muscle tissue seen with ultrasound:

A
  • Fascicles: bundles of myofibers (cells); appears hypoechoic
  • Perimysium: connective tissue surrounding fascicles; appears hyperechoic.
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4
Q

Type of cartilage that appears…

  1. Hyperechoic
  2. Hypoechoic (anechoic)
A
  1. Fibrocartilage (meniscus and labrum)
  2. Articular cartilage
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5
Q

Describe the valgus and varus stress tests used to evaluate integrity of collateral ligaments:

  • Valgus stress test:
  • Varus stress test:
A
  • Valgus: used to stress medial joint ligaments. While stabilizing the lateral aspect of the joint, apply laterally direct force to the distal segment.
  • Varus: used to stress lateral joint ligaments. While stabilizing the medial aspect of the joint, apply medially directed force to the distal segment
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6
Q

Subscapularis

  • Origin:
  • Insertion:
  • Action:
A
  • Origin: Subscapular fossa
  • Insertion: Lesser tuberosity
  • Action: Internal rotation of shoulder
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7
Q

Supraspinatus

  • Origin:
  • Insertion:
  • Action:
A
  • Origin: Supraspinous fossa
  • Insertion: Greater tuberosity- superior and middle facets
  • Action: Abduction of shoulder
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8
Q

Infraspinatus

  • Origin:
  • Insertion:
  • Action:
A
  • Origin: Infraspinous fossa
  • Insertion: Greater tuberosity- middle facet (overlaps supraspinatus)
  • Action: External rotation of shoulder
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9
Q

Teres Minor

  • Origin:
  • Insertion:
  • Action:
A
  • Origin: Axillary border of scapula
  • Insertion: Greater tuberosity- posterior facet
  • Action: External rotation of shoulder
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10
Q

Biceps Long Head

  • Origin:
  • Insertion:
  • Action:
A
  • Origin: Supraglenoid tubercle
  • Insertion: Radial tuberosity, bicipital aponeurosis
  • Action: Flex elbow; supinate forearm
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11
Q

Biceps Short Head

  • Origin:
  • Insertion:
  • Action:
A
  • Origin: Coracoid process
  • Insertion: Radial tuberosity, bicipital aponeurosis
  • Action: Flex elbow; supinate forearm
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12
Q

Pectoralis Major

  • Origin:
  • Insertion:
  • Action:
A
  • Origin: Clavicle, sternum, top 6 costal cartilages
  • Insertion: Lateral ridge of bicipital groove
  • Action: Adduct, internal rotation, and flexion of shoulder
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13
Q

Pectoralis Minor

  • Origin:
  • Insertion:
  • Action:
A
  • Origin: 3rd-5th ribs
  • Insertion: Coracoid process
  • Action: Protract scapula
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14
Q

Coracobrachialis

  • Origin:
  • Insertion:
  • Action:
A
  • Origin: Coracoid process
  • Insertion: Humeral shaft
  • Action: Flexion of shoulder
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15
Q

Deltoid (3 heads)

  • Origin:
  • Insertion:
  • Action:
A
  • Origin: Clavicle, acromion, spine of scapula
  • Insertion: Deltoid tuberosity
  • Action: Abduction, flexion, and extension of shoulder
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16
Q

Triceps brachii (3 heads)

  • Origin:
  • Insertion:
  • Action:
A
  • Origin:
    • long head- infraglenoid tubercle;
    • lateral & medial heads- posterior humerus.
  • Insertion: Olecranon process of ulna.
  • Action: Extension of elbow; long head also extends shoulder
17
Q

Anconeus

  • Origin:
  • Insertion:
  • Action:
A
  • Origin: Posterior aspect of lateral epicondyle
  • Insertion: Lateral aspect of olecranon and upper ¼ of ulna
  • Action: Extension of elbow and supports elbow when in full extension
18
Q

Rotator cuff muscles include:

A
  • Subscapularis
  • Supraspinatus
  • Infraspinatus
  • Teres minor
19
Q

Draw the insertion of the rotator cuff tendons on the humerus:

A
20
Q

Tendons attached to the coracoid process:

A
  • Short head of biceps brachii—origin
  • Coracobrachialis—origin
  • Pectoralis minor—insertion

Back Up MSK (11 decks)

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