Primer 3 Flashcards Preview

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Flashcards in Primer 3 Deck (18):

Which Gram positive organisms are associated with the following:
1. infant with poor muscle tone
2. diarrhea after ABX use
3. respiratory distress in postal worker
4. otitis media in kiddos
5. cellulitis

1. clostridium botulinum
2. clostridium difficile
3. bacillus anthracus (sp?)
4. strep pneumo (but commonly viral!)
5. staph aureus, strep pyo (GAS)


What is the classic presenting symptom in Lyme Disease?

Erythema Chronica Migrans:
expanding bull's eye rash with central clearing


Describe the function of MQs in the spleen:

clear bacteria and dysfunctional cells


Long Thoracic N:
Innervates? Action of mm?

Serrates Anterior: holds the scapula to the thorax


Suprascapular N:
Innervates? Action of mm?

Infraspinatus: external rotation
Supraspinatus: abduction of forearm


Lateral Pectoral Nerve:
Innervates? Action of mm?

Pectoralis major: flexion, adduction, medial rotation


Upper Subscapular N:
Innervates ? Action of mm?

Subscapularis: Internal rotation


Thoracodorsal N:
Innervates? Action of mm?

Latissimus Dorsi:
extension, adduction, transverse extension
flexion from extended position, internal rotation


Lower Subscapular Nerve:
Innervates ? Action of mm?

Teres Major: medial rotation, adduction


Musculocutaneous Nerve:
Innervates ? Action of mm?

1. Biceps
2. coracobrachialis
3. brachialis

Major flexors of the arm


Axillary N:
Innervates ? Action of mm?

1. Deltoid: abduction
2. Teres Minor: Lateral rotation of humerus


Radial N:
Innervates ? Action of mm?

1. Triceps
2. Extensors

Extend arm and forearm


Median N:
Innervates ? Action of mm?

1. Pronators
2. Thenar muscles

Pronate the arm


Ulnar N:
Innervates ? Action of mm?

1. Interosseous mm.
2. Hypothenar mm.

Flex and adduct the hand


Describe Injury to the C5-C6 Nerve roots; how does this most commonly occur?

Erb Duchenne Palsy (Waiter's tip):
Complete or partial paralysis of upper arm due to bruising/ stretching of the following nn.
1. suprascapular
2. musculocutaneous
3. axillary

CAN NOT: Abduct, laterally rotate, flex, or supinate arm

#1 Cause = dystocia during delivery of LARGE BABY
Other causes: neonatal clavicle fracture


Describe Injury to the C8-T1 Nerve roots; how does this commonly occur? Clinical presentation? Common Causes?

Klumpke's Palsy (Thoracic Outlet Syndrome):
1. Atrophy thenar + hypothenar eminences, interosseous mm. w/ claw hand
2. Sensory loss @ medial forearm and medal side of hand
3. loss of radial pulse with head moving due to compression of subclavian a.

#1 Cause: cervical rib compression
Other causes: hypertrophy of anterior scalene m.


Boarders and Contents of the posterior triangle of the neck

Boarders: Trapezius, clavicle, SCM
1. Brachial plexus
2. Subclavian v.
3. EJV
4. Inferior omohyoid


Boarders and contents of the anterior triangle of the neck

Boarders: Trachea (midline), SCM, Mandible
1. Sternohyoid
2. Sternothyroid
3. Superior omohyoid
4. Posterior belly of digastric m.