COBGC Anatomy and Physiology 1

Question 1

What is the primary function of the placenta during pregnancy?

Accepted Answer

To nourish the fetus and remove waste

Answer

The placenta is a vital temporary organ that develops during pregnancy, serving as the interface between the mother and the fetus. Its primary function is to facilitate the exchange of nutrients and oxygen from the mother's bloodstream to the fetus, while simultaneously removing waste products from the fetal blood for the mother's body to excrete. This critical role ensures the healthy growth and development of the fetus.

Question 2

Which hormone triggers the onset of labor?

Accepted Answer

Oxytocin

Answer

Oxytocin is the hormone primarily responsible for triggering and strengthening uterine contractions, which are essential for the onset and progression of labor. Produced in the hypothalamus and released by the posterior pituitary gland, it plays a crucial role in childbirth. It also has functions in milk ejection during breastfeeding.

Question 3

What is the role of the corpus luteum in the menstrual cycle?

Accepted Answer

To maintain the endometrium if pregnancy occurs

Answer

The corpus luteum forms from the ruptured follicle after ovulation and plays a critical role in the menstrual cycle and early pregnancy. Its main function is to secrete progesterone (and some estrogen), which is essential for maintaining the uterine lining (endometrium) in a state suitable for implantation and to support the early stages of pregnancy if fertilization occurs. If pregnancy does not occur, it degenerates, leading to menstruation.

Question 4

Which part of the female reproductive system is also known as the birth canal?

Accepted Answer

Vagina

Answer

The vagina is a muscular, elastic canal that extends from the cervix to the outside of the body. It is commonly known as the birth canal because it serves as the passageway through which a baby travels during a vaginal delivery. It also plays a role in menstruation and sexual intercourse.

Question 5

Which structure is known as the "cervical canal" and connects the uterus to the vagina?

Accepted Answer

Cervix

Answer

The cervix is the lower, narrow part of the uterus that connects it to the vagina. This connection forms a canal, often referred to as the cervical canal, which allows for the passage of menstrual blood, sperm, and, during childbirth, the baby. It acts as a gateway to the uterus.

(COBGC) Certified Obstetrics Gynecology Coder Practice Test

(COBGC) Certified Obstetrics Gynecology Coder Practice Test

COBGC Anatomy and Physiology 1