Which Microorganism Is the Most Common Cause of Tonsillitis in Adolescents

question 1

Multiple Choice

Which microorganism is the most common cause of tonsillitis in adolescents?

• A) Epstein-Barr virus
• B) Streptococcus pneumoniae
• C) Mycoplasma
• D) Grp A beta hemolytic streptococcus

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Definitions:

Ligamentum Arteriosum

A small ligament that is a remnant of the ductus arteriosus, connecting the pulmonary artery to the descending aorta in the fetal circulation system.

Fossa Ovalis

The fossa ovalis is an anatomical feature of the heart, a depression in the right atrium wall, marking the spot where an opening, the foramen ovale, existed in the fetal heart.

Papillary Muscle

Muscles located in the ventricles of the heart, attaching to the cusps of the atrioventricular valves via chordae tendineae and preventing valve inversion.

Foramen Ovale

An opening in the septum between the right and left atria of the fetal heart, which normally closes shortly after birth.