Random USMLE Facts volume 9-3

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Random USMLE Facts volume 9-3:

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 muscle performs abduction of the second digit?

First dorsal interosseous muscle.

What muscle performs adduction of the second digit?

First palmar interosseous muscle.

What muscle performs adduction of the thumb?

Adductor pollicis muscle.

What muscle performs flexion of the interphalangeal joint of the thumb?

Flexor pollicis longus muscle.

What is the histopathology of human papillomavirus (HPV)?

HPV causes condyloma, which occurs on male/female external surface. Squamous epithelial cells infected by HPV show characteristic nuclear and cytoplasmic changes, called koilocytosis or koilocytotic atypia, on tissue sections or Pap smears. HPV can be diagnosed after these pathological changes. The nuclei become condensed and "raisin-like," cytoplasmic vacuolization creates a perinuclear halo. Note that only HPV 16 and 18 are asscociated with cervical carcinoma, while HPV 6 and 11 are not.

What heart defect is present in cri-du-chat syndrome?


What is the function of the Na-Ca exchanged in an action potential?

Move a net positive charge into the cytosol of a resting cardiac muscle cell during phase 4 of the action potential.

Ewing Sarcoma:

ewing sarcoma

What does the above picture represent?

Ewing sarcoma.

What is the weakened area for an indirect hernia?

Transversalis fascia.

What is alprostadil?

A PGE1 analog. For example, it is used to maintain an PDA in transposition of the great vessels. NOTE: indomethacin is used to close a PDA.

What kind of metabolic disorder occurs in cardiopulmonary arrest?

A mixed acidosis: low blood pH, high arterial CO2, and low plasma HCO3-. The patient may have both metabolic acidosis and respiratory acidosis.

What are examples of some mixed disorders?

Cardiac arrest, diabetic ketoacidosis, COPD, salicylate intoxication, pulmonary edema, gram negative sepsis.

When does the Moro reflex disappear?

3-6 months.

What can lead to the formation of schistocytes?

DIC and prosthetic valves.

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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