Q- Mullerian-inhibitory factor plays a major role in the development of the male reproductive system. Which type of cells secrete it?
A- Leydig cells
B- Sertoli cells
B- Sertoli cells- Sertoli cells in the testes secrete Müllerian-inhibitory factor (MIF), also called anti-Müllerian hormone, which causes regression of the Müllerian ducts during male fetal development. Leydig cells produce testosterone but do not secrete MIF.
Q- If a new effective treatment for COVID-19 is initiated, which of the following will be the appropriate effect on incidence and prevalence?
A- Both incidence and prevalence increase
B- Incidence decreases with no change in prevalence
C- No change in both
D- No current change in incidence and reduced prevalence
D- No change in current incidence and decreased prevalence- A new effective treatment does not prevent new cases, so incidence does not change. However, it shortens the duration of illness by helping patients recover faster, which reduces prevalence.
Q- Which of the following defense mechanisms is most likely associated with paranoia?
A- Projection
B- Splitting
C- Superego lacunae
D- Undoing
A- Projection- Paranoia is strongly linked to projection, where a person attributes their own unacceptable thoughts or feelings to others. The individual believes others are hostile or threatening, when in fact these feelings originate within themselves.
2 thoughts on “Repeated USMLE Questions Step 1- Review- 329”
A new effective treatment affects prevalence as a lot of patients will get cured but incidence will currently remain the same as it is a pandemic disease. Later, it will be definitely a change in incidence. Thank you Dr. for your comment.
Thank you but if new drug developed for a communicable disease prevalence decrease thereby transmission and eventually incidence too
A new effective treatment affects prevalence as a lot of patients will get cured but incidence will currently remain the same as it is a pandemic disease. Later, it will be definitely a change in incidence. Thank you Dr. for your comment.
Thank you but if new drug developed for a communicable disease prevalence decrease thereby transmission and eventually incidence too