Human Reproduction Chapter-Wise Test 2

Correct answer Carries: 4.

Wrong Answer Carries: -1.

In which region of the uterus does implantation most commonly occur?

Uterine fundus
Uterine body
Uterine isthmus
Cervix
1

The uterine fundus, being rich in blood supply, is the most common site for implantation of the blastocyst.

Which event triggers the acrosomal reaction in human sperm?

Capacitation of sperm in the female reproductive tract
Binding of sperm to the zona pellucida
Exposure to ovarian hormones
Fusion with the oocyte membrane
2

The binding of sperm to specific glycoproteins in the zona pellucida triggers the acrosomal reaction, releasing enzymes necessary for penetration.

Which condition in males is characterized by decreased sperm motility, leading to reduced fertility?

Oligospermia
Azoospermia
Asthenospermia
Teratospermia
3

Asthenospermia is characterized by reduced sperm motility, which can impair the ability of sperm to reach and fertilize the oocyte.

During the first trimester of pregnancy, which structure is the main source of progesterone?

Placenta
Corpus luteum
Anterior pituitary
Adrenal glands
2

In early pregnancy, the corpus luteum is the primary source of progesterone until the placenta takes over later in gestation.

Which structure is primarily responsible for early fetal nutrition before placental circulation is fully established?

Chorionic villi
Yolk sac
Amnion
Umbilical cord
2

The yolk sac provides early nutrition to the developing embryo before the placenta takes over nutrient exchange.

Which technique involves the direct extraction of oocytes for fertilization outside the body?

Intrauterine insemination (IUI)
Gamete intrafallopian transfer (GIFT)
Oocyte retrieval for in vitro fertilization (IVF)
Zygote intrafallopian transfer (ZIFT)
3

Oocyte retrieval is the process of extracting eggs directly from the ovaries for IVF procedures.

Which structure in the male reproductive system is primarily responsible for secreting the bulk of the seminal fluid?

Prostate gland
Seminal vesicles
Bulbourethral glands
Epididymis
2

The seminal vesicles contribute approximately 60-70% of the total volume of seminal fluid, which nourishes and transports sperm.

Which structure in the placenta is primarily involved in the exchange of nutrients and gases between the mother and the fetus?

Chorionic villi
Umbilical cord
Decidua basalis
Amniotic sac
1

The chorionic villi, which extend into maternal blood spaces, facilitate the exchange of oxygen, nutrients, and waste products between the mother and the fetus.

Where does fertilization typically occur in the female reproductive tract?

Uterus
Cervix
Fallopian tube
Ovary
3

Fertilization most commonly occurs in the fallopian tube, where the sperm meets the ovum.

Which process describes the transformation of a primary oocyte into a secondary oocyte along with the formation of polar bodies?

Oogenesis
Spermatogenesis
Meiosis II
Fertilization
1

Oogenesis is the process by which primary oocytes mature into secondary oocytes with the formation of polar bodies.

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