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Ch. 27 The Reproductive System
Hoehn - Marieb Human Anatomy & Physiology, 12th edition
Hoehn, Haynes, Abbott12th EditionMarieb Human Anatomy & PhysiologyISBN: 9780138242732Not the one you use?Change textbook
All textbooksHoehn, Haynes, Abbott 12th EditionCh. 27 The Reproductive SystemProblem 4
Chapter 27, Problem 4

The usual site of embryo implantation is:
a. The uterine tube
b. The peritoneal cavity
c. The vagina
d. The uterus

Verified step by step guidance
1
Understand the process of fertilization and implantation: After fertilization occurs in the uterine tube (fallopian tube), the zygote undergoes several rounds of cell division to form a blastocyst, which travels to the uterus for implantation.
Review the anatomy of the female reproductive system: The uterus is a muscular organ designed to support the development of the embryo and fetus. It has a specialized lining called the endometrium, which thickens during the menstrual cycle to prepare for potential implantation.
Eliminate incorrect options: The uterine tube (fallopian tube) is the site of fertilization, not implantation. The peritoneal cavity is outside the reproductive tract and is not a normal site for implantation. The vagina is part of the birth canal and does not support implantation.
Focus on the correct site: The uterus is the usual site of implantation because its endometrial lining provides the necessary nutrients and environment for the blastocyst to attach and develop.
Conclude: Based on the anatomy and physiology of the female reproductive system, the correct answer is the uterus, as it is the organ specifically designed for embryo implantation and development.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Embryo Implantation

Embryo implantation is the process by which a fertilized egg attaches itself to the lining of the uterus. This is a critical step in establishing a pregnancy, as it allows the embryo to receive nutrients and support from the mother's body. Successful implantation typically occurs about six to ten days after fertilization.
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Implantation: Days 6-9

Uterine Anatomy

The uterus is a hollow, muscular organ located in the female pelvis, designed to house and nourish a developing fetus. Its inner lining, known as the endometrium, thickens in preparation for potential implantation of an embryo. Understanding the structure and function of the uterus is essential for comprehending where implantation occurs.
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The Uterine Tubes

Reproductive System

The reproductive system encompasses all the organs involved in reproduction, including the ovaries, fallopian tubes, uterus, and vagina. Each component plays a vital role in the processes of ovulation, fertilization, and implantation. A solid grasp of the reproductive system's anatomy and functions is necessary to answer questions related to embryo implantation.
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What is the Reproductive System?
Related Practice
Textbook Question

Relative to differences between mitosis and meiosis, choose the statements that apply only to events of meiosis:

a. Tetrads present

b. Produces two daughter cells

c. Produces four daughter cells

d. Occurs throughout life

e. Reduces the chromosomal number by half

f. Synapsis and crossing over of homologous occur

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Textbook Question

The normal diploid number of human chromosomes is:

a. 48

b. 47

c. 46

d. 23

e. 24

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Textbook Question

Secondary sex characteristics are:

a. Present in the embryo

b. A result of male or female sex hormones increasing in amount at puberty

c. The testis in the male and the ovary in the female

d. Development of male and female external genitalia

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Textbook Question

Which of the following produces the male sex hormones?

a. Seminal glands

b. Corpus luteum

c. Developing follicles in the testes

d. Interstitial endocrine cells

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Textbook Question

The structures that draw an ovulated oocyte into the female duct system are:

a. Cilia

b. Fimbriae

c. Microvilli

d. Stereocilia

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Textbook Question

Which of the following is correct relative to female anatomy?

a. The vaginal orifice is the most dorsal of the three openings in the perineum.

b. The urethra is between the vaginal orifice and the anus.

c. The anus is between the vaginal orifice and the urethra.

d. The urethra is the more ventral of the two orifices in the vulva.

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