Conception and Implantation: A Comprehensive Guide for Psychology Students

Question 1

Which hormone triggers the release of a mature egg from the ovary during ovulation?

Accepted Answer

Luteinizing hormone (LH)

Answer

Progesterone

Answer

Follicle-stimulating hormone (FSH)

Question 2

Which of the following is NOT a stage in the early development of an embryo?

Accepted Answer

Gastrula

Answer

Zygote

Answer

Morula

Answer

Blastocyst

Question 3

Which hormone triggers the release of a mature egg from the ovary?

Accepted Answer

Luteinizing hormone (LH)

Answer

Follicle-stimulating hormone (FSH)

Answer

Estrogen

Answer

Progesterone

Question 4

Fertilization normally occurs in which part of the female reproductive system?

Accepted Answer

Fallopian tube

Answer

Cervix

Answer

Vagina

Answer

Uterus

Question 5

Which layer of the uterine wall is where implantation primarily takes place?

Accepted Answer

Endometrium

Answer

Myometrium

Answer

Serosa

Answer

Myometrium

Question 6

Which hormone plays a crucial role in maintaining the uterine lining during pregnancy?

Accepted Answer

Progesterone

Answer

Estrogen

Answer

FSH

Answer

LH

Question 7

What is the name of the organ that develops from the trophoblast cells and facilitates the exchange of nutrients between the mother and the developing fetus?

Accepted Answer

Placenta

Answer

Yolk sac

Answer

Umbilical cord

Answer

Amniotic sac

Question 8

What is the process called by which the zygote undergoes repeated cell division?

Accepted Answer

Cleavage

Answer

Gastrulation

Answer

Morula formation

Answer

Differentiation

Question 9

Which type of cell within the blastocyst develops into the fetus?

Accepted Answer

Embryoblast

Answer

Trophoblast

Answer

Mesoblast

Answer

Endoblast

Question 10

What is the primary function of the acrosome reaction during fertilization?

Accepted Answer

Releasing enzymes to penetrate the egg's protective layers

Answer

Attracting the egg to the sperm

Answer

Increasing the sperm's motility

Question 11

What is the primary function of the chorionic villi, which develop from the trophoblast cells?

Accepted Answer

Facilitating gas exchange between the embryo and the mother

Answer

Digesting nutrients from the uterine lining for embryonic nourishment

Answer

Secreting hormones essential for pregnancy maintenance

Answer

Protecting the embryo from potential harm

Question 12

Which hormone is responsible for preparing and maintaining the uterine lining for successful embryo implantation?

Accepted Answer

Progesterone

Answer

Luteinizing hormone (LH)

Answer

Estrogen

Answer

Follicle-stimulating hormone (FSH)

Question 13

What is the term used to describe the fertilized egg before it undergoes implantation?

Accepted Answer

Zygote

Answer

Blastocyst

Answer

Fetus

Answer

Embryo

Question 14

Which factor is most crucial for increasing the likelihood of successful embryo implantation?

Accepted Answer

Optimal hormonal balance, particularly adequate levels of progesterone

Answer

Stress levels, as chronic stress can negatively affect implantation

Answer

Number of previous pregnancies, as each pregnancy can alter the uterine environment

Answer

Age of the woman, with younger women having higher chances of implantation

Question 15

Which structure is responsible for providing nourishment to the embryo during the early stages of implantation?

Accepted Answer

Yolk sac

Answer

Placenta

Answer

Umbilical cord

Answer

Amniotic sac

Question 16

What is the primary role of the inner cell mass in embryonic development?

Accepted Answer

Developing into the embryo proper, giving rise to all tissues and organs

Answer

Supplying nutrients to the developing embryo

Answer

Providing structural support to the developing embryo

Answer

Protecting the embryo from external influences

Question 17

Which of the following is NOT a known factor that can potentially affect the success of embryo implantation?

Accepted Answer

Age of the sperm

Answer

Uterine abnormalities, such as structural issues or hormonal imbalances

Answer

Endometriosis, a condition that can alter the uterine environment

Answer

Age of the woman, as advanced maternal age can impact fertility

Question 18

What term describes the process by which the trophoblast cells penetrate the uterine wall during the early stages of implantation?

Accepted Answer

Invasion

Answer

Adhesion

Answer

Implantation

Answer

Differentiation

Question 19

Which of the following is considered to be the inception of human development, marking the start of a new individual life?

Accepted Answer

Conception

Answer

Organogenesis

Answer

Embryogenesis

Answer

Gastrulation

Question 20

Which hormone, produced by the pituitary gland, plays a pivotal role in triggering ovulation, releasing the mature egg from the ovary?

Accepted Answer

Luteinizing hormone (LH)

Answer

Follicle-stimulating hormone (FSH)

Answer

Estrogen

Answer

Progesterone

Question 21

The inner cell mass, a group of cells within the blastocyst, will eventually give rise to:

Accepted Answer

The embryo

Answer

The amniotic sac

Answer

The umbilical cord

Answer

The placenta

Question 22

Which layer of the blastocyst is responsible for developing into the fetal membranes, providing nourishment and protection to the growing embryo?

Accepted Answer

Trophoblast

Answer

Hypoblast

Answer

Epiblast

Answer

Inner cell mass

Question 23

The process by which the trophoblast invades the uterine lining, establishing a connection between the developing embryo and the maternal circulatory system, is known as:

Accepted Answer

Trophoblast invasion

Answer

Gastrulation

Answer

Blastulation

Question 24

The placenta, a vital organ facilitating the exchange of nutrients and waste between the mother and the developing fetus, is formed by contributions from which two sources?

Accepted Answer

Both the mother and the fetus

Answer

Neither the mother nor the fetus

Answer

The fetus only

Answer

The mother only

Question 25

Which hormone plays a crucial role in preparing the uterine lining for implantation by maintaining its thickness and blood supply?

Accepted Answer

Progesterone

Answer

Estrogen

Answer

Prolactin

Answer

Testosterone

Question 26

Where does fertilization typically occur in the female reproductive system?

Accepted Answer

Fallopian tube

Answer

Vagina

Answer

Cervix

Answer

Uterus

Question 27

Which of the following is a key characteristic of the morula stage of pre-implantation development?

Accepted Answer

Cell division without growth

Answer

Differentiation into primary germ layers

Answer

Formation of the inner cell mass

Answer

Attachment to the uterine lining

Question 28

What is the process by which the blastocyst adheres to the wall of the uterus called?

Accepted Answer

Implantation

Answer

Cleavage

Answer

Fertilization

Answer

Gastrulation

Question 29

Which hormone triggers ovulation, the release of a mature egg from the ovary?

Accepted Answer

Luteinizing hormone (LH)

Answer

Follicle-stimulating hormone (FSH)

Answer

Prolactin

Question 30

During which phase of the menstrual cycle is implantation most likely to occur?

Accepted Answer

Secretory phase

Answer

Follicular phase

Answer

Ovulatory phase

Question 31

Which layer of the blastocyst will develop into the placenta?

Accepted Answer

Trophoblast

Answer

Yolk sac

Answer

Inner cell mass

Question 32

Which structure provides nourishment to the developing embryo before implantation?

Accepted Answer

Yolk sac

Answer

Placenta

Answer

Umbilical cord

Answer

Amniotic sac

Question 33

What is the process by which the inner cell mass of the blastocyst differentiates into the three primary germ layers called?

Accepted Answer

Gastrulation

Answer

Neurulation

Answer

Organogenesis

Answer

Cleavage

Question 34

Fertilization of the egg typically occurs in which part of the female reproductive system?

Accepted Answer

Fallopian tube

Answer

Vagina

Answer

Ovary

Answer

Uterus

Question 35

What is the name of the structure that encloses the fertilized egg after it implants in the uterus?

Accepted Answer

Blastocyst

Answer

Morula

Answer

Embryo

Answer

Zygote

Question 36

Approximately how long does it take for an embryo to implant in the uterus?

Accepted Answer

6-12 days

Answer

12-18 days

Answer

18-24 days

Answer

2-4 days

Question 37

Which layer of the blastocyst gives rise to the fetus?

Accepted Answer

Inner cell mass

Answer

Amniotic sac

Answer

Trophoblast

Answer

Zona pellucida

Question 38

What hormone, produced by the trophoblast, indicates the presence of pregnancy?

Accepted Answer

Human chorionic gonadotropin (hCG)

Answer

Luteinizing hormone (LH)

Answer

Progesterone

Answer

Estrogen

Question 39

When is a woman most likely to be fertile, based on the average 28-day menstrual cycle?

Accepted Answer

Day 14

Answer

Day 21

Answer

Day 1

Answer

Day 28

Question 40

What is the correct chronological order of events during fertilization?

Accepted Answer

Sperm penetrates the egg, nuclei fuse, zygote forms.

Answer

Nuclei fuse, sperm penetrates the egg, embryo forms.

Answer

Zygote forms, nuclei fuse, sperm penetrates the egg.

Question 41

After traveling down the fallopian tube, where does the fertilized egg implant to continue its development?

Accepted Answer

Uterine wall.

Answer

Fallopian tube.

Answer

Ovary.

Answer

Cervix.

Question 42

Which factor does NOT influence the success of implantation?

Accepted Answer

Maternal blood type.

Answer

Uterine lining thickness.

Answer

Egg quality.

Answer

Presence of uterine abnormalities.

Question 43

What is the main role of the hormone hCG during implantation?

Accepted Answer

Maintain the corpus luteum for continued progesterone production.

Answer

Stimulate estrogen production.

Answer

Trigger ovulation.

Question 44

What is the primary function of the placenta?

Accepted Answer

Provide oxygen and nutrients, remove waste products.

Answer

Protect the fetus from infections.

Answer

Produce hormones to control maternal metabolism.

Question 45

In vitro fertilization (IVF) is different from natural conception primarily because:

Accepted Answer

Fertilization occurs outside the woman's body.

Answer

Multiple eggs are released through hormonal stimulation.

Answer

Sperm is injected directly into the egg.

Question 46

For individuals with low sperm count, which assisted reproductive technology is commonly used?

Accepted Answer

Intracytoplasmic sperm injection (ICSI).

Answer

Artificial insemination (AI).

Answer

In vitro fertilization (IVF).

Answer

Gamete intrafallopian transfer (GIFT).

Question 47

Why is the upper portion of the uterus more favorable for embryo implantation than the lower portion?

Accepted Answer

Offers a more stable and resource-rich environment.

Answer

Lower risk of infections.

Answer

Closer to the cervix for easier delivery.

Question 48

What is the process of fertilization?

Accepted Answer

The fusion of a sperm cell and an egg cell, creating a zygote.

Answer

The development of an embryo from a fertilized egg.

Answer

The implantation of a fertilized egg in the uterine lining.

Question 49

What is the primary function of the acrosome in a sperm cell during fertilization?

Accepted Answer

To release enzymes that break down the outer layers of the egg cell.

Answer

To guide the sperm towards the egg cell.

Answer

To provide energy for the sperm cell's journey.

Question 50

Which of these is NOT a factor influencing the successful implantation of a fertilized egg?

Accepted Answer

The father's blood type.

Answer

The thickness of the uterine lining.

Answer

The presence of any uterine abnormalities.

Answer

The mother's hormonal environment.

Question 51

What is the name of the structure formed when a fertilized egg undergoes multiple cell divisions?

Accepted Answer

Blastocyst

Answer

Embryo

Answer

Zygote

Answer

Fetus

Question 52

Which part of the blastocyst eventually develops into the placenta?

Accepted Answer

Trophoblast

Answer

Amnion

Answer

Inner cell mass

Answer

Yolk sac

Question 53

Which hormone is primarily responsible for preparing the uterine lining for implantation?

Accepted Answer

Progesterone

Answer

Estrogen

Answer

FSH (Follicle-Stimulating Hormone)

Answer

LH (Luteinizing Hormone)

Question 54

Approximately how long after fertilization does implantation typically occur?

Accepted Answer

6 to 12 days

Answer

2 to 4 weeks

Answer

1 to 2 months

Answer

1 to 3 days

Question 55

What is the term for a pregnancy where the fertilized egg implants outside the uterus, often in the fallopian tube?

Accepted Answer

Ectopic pregnancy

Answer

Miscarriage

Answer

Stillbirth