Meggdoc

Exposure to which substance protects the mucosal barrier of the stomach? a. Prostaglandins b. Helicobacter pylori c. Aspirin d. Regurgitated bile Prostaglandins. Prostaglandins and enterogastrones, such as gastric inhibitory peptide, somatostatin, and secretin, inhibit acid secretion. 2. Glucose transport enhances the absorption of which electrolyte? a. Sodium b. Potassium c. Phosphate d. Chloride Sodium. Sodium passes through the tight junctions and is actively transported across c...

What are clinical manifestations of hypothyroidism? a. Intolerance to heat, tachycardia, and weight loss b. Oligomenorrhea, fatigue, and warm skin c. Restlessness, increased appetite, and metrorrhagia d. Constipation, decreased heat rate, and lethargy The lower levels of thyroid hormone result in decreased energy metabolism, resulting in constipation, bradycardia, and lethargy, thus eliminating the remaining options. 2. Thyroid-stimulating hormone (TSH) is released to stimulate thyroid ho...

Embryonic Origin of body tissues • A fertilized ovum develops into an embryo • Cells differentiate into 4 basic tissues, which include: the epithelium, muscle, connective and nervous tissue o The ectoderm develops into epithelium o The mesoderm develops into epithelium, muscle and connective tissue o The endoderm develops into nervous tissue • A cell is comprised of a plasma membrane, a nucleus (which contains DNA and RNA), and the cytoplasm which contains organelles such as: ribos...

Which age group are unintentional injuries NOT the leading cause of death? A. 1-4 yr B. 5-9 yr C. Younger than 1 yr D. 10-14 yr E. 15-19 yr 2. Which of the following interventions have significantly lowered the pediatric mortality rate in developing countries? A. Vaccination programs B. Oral rehydration therapy C. Treated mosquito nets D. Early diagnosis and treatment of pneumonia E. All of the above 3. Per the IOM, high-quality health care by definition must be: A. Timely and eff...