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Anatomy - BAM > Final: Lecutre 17 > Flashcards

Final: Lecutre 17 Flashcards

0
Q

Which joints have no movement?

A

•Synarthrosis

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1
Q

Three types of joints are?

A
  • Fibrous: sutures, syndesmoses, and gomphoses
  • Cartilagenous: synchodroses and syphyses
  • Synovial (most joints): joint capsule, hyaline cartilage, some have articular disc, and typically very mobile with synovial fluid in between reducing friction
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2
Q

Which joints have little movement?

A

•Amphiarthrosis

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3
Q

Which joints have lots of movement? (most synovial joints)

A

•Diarthrosis

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4
Q

What are the four muscles that make up the Rotator Cuff?

A

•subscapularis, supraspinatus, infraspinatus, and teres minor

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5
Q

Deltoid

A
  • Proximal: lateral 1/3 of clavicle, acromion, and spine of scapula
  • Distal: deltoid tuberosity of humerus
  • Actions: flexes, medially rotates, abducts, extends, and laterally rotates humerus
  • Innervation: axillary
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6
Q

Teres Major

A
  • Proximal: posterior surface of inferior angle of scapula
  • Distal: medial lip of intertubercular (bicipital) groove of humerus
  • Actions: adducts and medially rotates (internal rotation) humerus
  • Innervation: lower subscapular
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7
Q

What does the transverse ligament of the humerus do?

A

•hold the biceps tendon in place

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8
Q

Supraspinatus

A
  • Proximal: supraspinous fossa of scapula
  • Distal: superior facet of greater tubercle of humerus
  • Actions: works with deltoid in abduction of humerus, acts with other rotator cuff muscles in stabilizing shoulder joint
  • Innervation: suprascapular
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9
Q

Subscapularis

A
  • Proximal: subscapular fossa (anterior surface of scapula)
  • Distal: lesser tubercle of humerus
  • Actions: medially rotates and adducts humerus, helps hold humeral head in place
  • Innervation: upper and lower subscapular
  • largest and strongest rotator cuff muscle
  • isolated subscapularis tears are rare, happens in pitchers or traumatic injuries
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10
Q

Infraspinatus

A
  • Proximal: Infraspinous fossa of scapula
  • Distal: middle facet of greater tubercle of humerus
  • Actions: laterally rotates humerus, helps hold humeral head in place
  • Innervation: suprascapular
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11
Q

Teres Minor

A
  • Proximal: middle part of lateral border of scapula
  • Distal: inferior facet of greater tubercle of humerus
  • Actions: laterally rotates humerus, helps hold humeral head in place
  • Innervation: axillary
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12
Q

What area of the back is the easiest to hear lung sounds?

A

•Triangle of auscultation

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13
Q

Biceps Brachii

A

•Proximal: long head: supraglenoid tubercle of scapula
short head: coracoid process of scapula

  • Distal: radial tuberosity and fascia of forearm via bicipital aponeurosis*
  • Actions: supinates forearm, when supine will flex forearm, resists dislocation of shoulder (short head)
  • Innervation: musculocutaneous (C5 and C6)
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14
Q

Coracobrachialis

A
  • Proximal: coracoid process of scapula
  • Distal: middle 1/3 of medial humeral surface
  • Actions: flexes and adducts arm at shoulder joint, resists dislocation of shoulder joint
  • Blood supply: brachial artery
  • Innervation: musculocutaneous (C5,6,7)
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15
Q

Brachialis

A
  • Proximal: distal 1/2 of anterior surface of humerus
  • Distal: coronoid process and tuberosity of ulna
  • Actions: flexes forearm at elbow (main flexor*)
  • Blood supply: brachial artery
  • Innervation: musculocutaneous, lateral portions may receive radial contributions
16
Q

Anconeus

A
  • Proximal: lateral epicondyle of humerus
  • Distal: lateral surface of olecranon, superior part of surface of ulna
  • Actions: assists triceps in extension of forearm and stabilizes elbow joint, also abducts ulna during pronation
  • Blood supply: deep brachial artery
  • Innervation: radial nerve (C7, C8, T1)
17
Q

Triceps Brachii

A

•Proximal: long: infragleniod tubercle

              lateral: posterior surface of humerus
              medial: posterior surface of humerus, inferior to radial groove (spiral groove)
  • Distal: proximal end of olecranon and fascia of forearm
  • Actions: extends forearm at elbow joint, resists dislocation of shoulder joint (long head)
  • Blood: deep brachial artery
  • Innervation: radial
18
Q

Boundaries of the Cubital Fossa

A
  • Lateral: brachioradialis
  • Medial: proator teres
  • Superior: imaginary line between medial and lateral epicondyles of humerus
  • Roof: skin, superficial and deep fascia, bicipital aponeurosis
  • Floor: supinator and brachialis
19
Q

Contents of Cubital Fossa

A
  • median nerve
  • bifurcation of radial and ulnar arteries
  • brachial veins
  • tendon of biceps brachii and bicipital aponeurosis
  • radial nerve (deep and superficial)

Anatomy - BAM (10 decks)

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