What type of receptor is involved in reflex actions that maintain muscle tone and, thereby, the body’s equilibrium and posture?

Gestational trophoblastic disease is characterized by all of the following except:

Webbing of the neck and short stature is found in infertile female patients with a history of:

A 25yr old patient presents for a first trimester scan with uterine size consistent with a 12wk fetus but the LMP indicates a 7 week pregnancy. You identify a mass of mottled tissue with cystic components and internal blood flow that occupies the fundus of the uterine cavity. There is also a gestational sac with a 4mm embryo identified in the inferior portion of the endometrial canal. Which of the following best describes these findings?

The disadvantage of chorionic villi sampling over amniocentesis is:

The “snow storm” describes the appearance of __________ on ultrasound.

Placenta previa is best evaluated in a patient with a full bladder.

A circumscribed mass protruding from the fetal surface of the placenta is demonstrated on ultrasound. This most likely represents:

Karyotype results can be processed within 2 to 3 days with this test:

Which of the following is true about amniocentesis?