Random USMLE Facts volume 11-4

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Random USMLE Facts volume 11-4:

USMLE Facts 1 USMLE Facts 2 USMLE Facts 3 USMLE Facts 4 USMLE Facts 5
USMLE Facts 6 USMLE Facts 7 USMLE Facts 8 USMLE Facts 9 USMLE Facts 10

What is the best way to confirm trichinosis?

Muscle biopsy.

Which type of neural receptor is responsible for the excitatory effect?

NMDA - ligand- and voltage-gated cation channel - permeable to calcium and sodium ions.

Findings in measles:

Fever, conjunctivitis, photophobia, and cough; mucosal white spots on a bright-red background (Koplik spots); syncytia (giant multinucleated cells) seen with paramyxoviruses and herpesviridae.

On occlusion of the celiac trunk, anastomoses between which arteries enable the affected organs to function normally?

Superior and inferior pancreaticoduodenal arteries.

Muscle Tension Curve:

muscle tension curve

Above: what is the maximum active tension at preload of 100 grams?

Curve Z = (preload curve) passive tension; external load "wants" to expand muscle and is applying this force.
Curve X = total tension.
Curve Y = active tension; muscle fiber "wants" to contract and is applying this force.

Active tension = total tension - passive tension.

Preload of 100 grams is associated with total tension of little more than 150 grams and active tension of little more than 50 grams.

What may cause lower peripheral DVT in pregnancy?

Hypercoagulable state; liver produces more of everything including clotting factors.

What can cause calcium bilirubinate pigment gallbladder stones?

Clonorchis sinensis infection, hepatic cirrhosis, and hemolytic anemias.

Is psoriasis associated with rheumatoid arthritis?

Yes - 5% of the cases.

What cardiac defect is seen in fragile X syndrome?

Mitral valve prolapse; there is breakpoint at q27.3 on the X chromosome.

What is the function of the pectoralis major?

Adduction of the shoulder.

What is atopic dermatitis?

Inflammatory skin disorder characterized by erythema, pruritis, edema, exudation, crusting, and scaling; seen in babies and very young children.

Which nerve root mediates the Achilles tendon reflex?

S1.

What is the pathway of the median nerve within the hand/wrist? What does the median nerve supply?

Proximal to the wrist, the median nerve crosses the elbow to enter the forearm; it passes between the two heads of the pronator teres muscle. The medial nerve supplies the skin of the palmar suface of the first three and one-half digits.

USMLE Facts 1 USMLE Facts 2 USMLE Facts 3 USMLE Facts 4 USMLE Facts 5
USMLE Facts 6 USMLE Facts 7 USMLE Facts 8 USMLE Facts 9 USMLE Facts 10

Additional Readings:

Random USMLE Facts

1. Random USMLE Facts volume 1-1
2. Random USMLE Facts volume 2-1
3. Random USMLE Facts volume 3-1
4. Random USMLE Facts volume 4-1
5. Random USMLE Facts volume 5-1
6. Random USMLE Facts volume 6-1
7. Random USMLE Facts volume 7-1
8. Random USMLE Facts volume 8-1
9. Random USMLE Facts volume 9-1
10. Random USMLE Facts volume 10-1
11. Random USMLE Facts volume 11-1
12. Random USMLE Facts volume 12-1

General and Systemic Examinations

1. General Examination for Internal Medicine
2. Jugular Venous Distention Workup
3. ER Chest Pain Workup
4. Format for Patient Presentation
5. Pulmonary Examination for Internal Medicine
6. Cardiac Examination for Internal Medicine
7. Abdominal Examination for Internal Medicine
8. Cranial Nerve Reflexes
9. Motor System Examination
10. Random Sensory System Facts
11. Random Stroke Facts

Medical Files & Presentations

1. USMLE Flashcards [Size: 1.9 MB; Format: MS Powerpoint]
2. Otitis Media in Children [Size: 5.4 MB; Format: MS Powerpoint]
3. Irritable Bowel Syndrome [Size: 170 kB; Format: MS Powerpoint]
4. Acid-Base Disturbance: Acidotic or Alkalotic? [Size: 427 kB; Format: PDF]
5. Thrombocytopenia [Size: 2.42 MB; Format: MS Powerpoint]
6. Are Face Transplants Ethical? [Size: 70.2 kB; Format: MS Powerpoint]

USMLE Step 2 CS Videos

1. Video of Cardiology Examination in a Clinical Setting
2. Video of Neurology Examination in a Clinical Setting
3. Video of Pulmonology Examination in a Clinical Setting
4. Video of Musculoskeletal Examination in a Clinical Setting
5. Video of Abdominal Examination in a Clinical Setting
6. Video of HEENT Examination in a Clinical Setting
7. Video and Description of Rinne Hearing Test
8. Video and Description of Weber Hearing Test

USMLE Laboratory (lab) Values

1. USMLE Blood Lab Values
2. USMLE Cerebrospinal Lab Values
3. USMLE Hematologic Lab Values
4. USMLE Sweat and Urine Lab Values

Medical Images

Useful Medical Images & Diagrams (link opens in a new window)

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Differentiation and Anatomy of a Blastocyst FAQ on Gastric Digestion
Notes on Basic Gastrointestinal Physiology Inferential Statistics
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Why did I decide to become a doctor? Medical School Admissions Essay Video: Titanic Piano Theme: The Portrait
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Generalized vs Specialized Transduction Differentiation and Anatomy of a Blastocyst
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