Advanced Uterine Cavity Quiz

Q1. Why can a submucosal leiomyoma alter the contour of the uterine cavity?

• It projects toward the cavity from beneath the endometrium
• It develops only in the ovarian cortex
• It arises from vaginal epithelium
• It forms within the uterine tube

Q2. Why are the tubal ostia important landmarks during hysteroscopy?

• They lie in the vaginal fornices
• They mark the ureteric openings
• They identify the external cervical os
• They are key superolateral landmarks of the cavity

Q3. Which developmental events are required to form a single normal uterine cavity?

• Fusion of the ureters with the cervix
• Fusion of the paramesonephric ducts and resorption of the intervening septum
• Division of the urogenital sinus into two cavities
• Fusion of the ovarian ligaments within the endometrium

Q4. What anatomical feature characterizes a septate uterus?

• The cervix is completely absent
• A persistent septum divides the uterine cavity
• The ovaries lie within the uterine lumen
• The uterine tubes fuse into a single tube

Q5. How can intrauterine adhesions interfere with implantation?

• They can distort the cavity and damage endometrial surfaces
• They increase ovarian follicle number
• They create extra tubal ostia
• They convert myometrium into cartilage

Q6. How does the uterine cavity change as pregnancy progresses?

• It expands as the uterine body enlarges
• It becomes continuous with the urinary bladder
• It progressively becomes smaller
• It moves into the ovarian cortex

Q7. Why is the internal cervical os an important boundary of the uterine cavity?

• It marks the ovarian hilum
• It marks the opening of the uterine tube into the peritoneum
• It marks the ureteric opening into the bladder
• It marks the transition from the uterine cavity to the cervical canal

Q8. Which vascular structures are closely involved in cyclic changes of the functional endometrium?

• Ovarian veins
• Inferior epigastric arteries
• Spiral arteries
• External iliac arteries

Q9. Which landmarks best orient the upper uterine cavity during hysteroscopy?

• Fundal contour and bilateral tubal ostia
• External cervical os and vaginal fornices
• Ovarian fossae and suspensory ligaments
• Ureteric orifices and bladder trigone

Q10. Which statement best describes the boundaries of the uterine cavity?

• It is confined entirely to the cervix
• It extends from the abdominal ostium to the external cervical os
• It lies between the ovaries and opens directly into the bladder
• It extends between the tubal ostia superiorly and the internal cervical os inferiorly