Anatomy & Physiology (6th Edition)
Anatomy & Physiology (6th Edition)
6th Edition
ISBN: 9780134156415
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Textbook Question
Chapter 26, Problem 1MC

The structures that draw an ovulated oocyte into the female duct system are (a) cilia, (b) fimbriae, (c) microvilli, (d) stereocilia.

Expert Solution & Answer
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Summary Introduction

Introduction:

The process of ovulation is defined as the release of eggs from the overies. This event occurs in humans, when the ovarian follicles rupture and release the secondary oocyte ovarian cells. During the process of ovulation, fimbriae get activated and hit the ovary in a gentle and sweeping motion. The release of oocyte from ovary is takes place in peritoneal cavity and cilia of the fimbriae draw the ovum into the fallopian duct.

Answer to Problem 1MC

Correct answer:

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

Fimbriae.

Explanation of Solution

Explanation for the correct answer:

The fimbriae are finger-like projections present at the end of the fallopian tube. During ovulation, the sex hormones accelerate the fimbriae and result in the inflammation. This causes a motion and allows the oocyte to release from the ovary. Cilia are present on the fimbriae and help in capturing oocyte into the uterine tube and finally toward uterus.

Explanation for the incorrect answers:

Option (c) states that microvilli are the structures that draw an ovulated oocyte into the female duct system. Microvilli are the cellular membrane protrusions that are present on the surface of the cells and their main function is the cellular adhesion. Hence this is an incorrect option.

Option (d) states that stereocilia are the structures that draw an ovulated oocyte into the female duct system. The stereocilia are present on the hair cells that shows the response to fluid motion in different types of animals for various functions, including hearing and balance. Hence this is an incorrect option.

Conclusion

Thus it is concluded that fimbriae are the finger-like projections present at the end of the fallopian tube and during ovulation, the sex hormones accelerate the cilia of fimbriae that causes a motion and allows the oocyte to draw into the fallopian tube.

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Chapter 26 Solutions

Anatomy & Physiology (6th Edition)

Ch. 26.4 - Prob. 11CYUCh. 26.5 - What is erection and which division of the ANS...Ch. 26.5 - Prob. 13CYUCh. 26.6 - What is the final outcome of meiosis?Ch. 26.6 - Describe the major structural and functional...Ch. 26.6 - Prob. 16CYUCh. 26.7 - What is the HPG axis?Ch. 26.7 - Prob. 18CYUCh. 26.7 - What are three secondary sex characteristics...Ch. 26.8 - Briefly, what are the internal genitalia of a...Ch. 26.8 - What two roles do the ovaries assume?Ch. 26.8 - Prob. 22CYUCh. 26.9 - Prob. 23CYUCh. 26.9 - Oocytes are ovulated into the peritoneal cavity...Ch. 26.9 - What portion of the female duct system is the...Ch. 26.10 - What is the female homologue of the bulbo-urethral...Ch. 26.10 - Cite similarities and differences between the...Ch. 26.11 - Developmentally, mammary glands are modifications...Ch. 26.11 - From what cell types does breast cancer usually...Ch. 26.12 - How do the haploid cells arising from oogenesis...Ch. 26.13 - How do identical twins differ developmentally from...Ch. 26.13 - What occurs in the luteal phase of the ovarian...Ch. 26.14 - Which hormone plays an important role in letting...Ch. 26.14 - Which hormone(s) prompt follicle growth? Which...Ch. 26.14 - Which gonadal hormone exerts positive feedback on...Ch. 26.14 - Which gonadal hormone causes the secondary sex...Ch. 26.14 - MAKING connections Youve studied both bone growth...Ch. 26.15 - Prob. 38CYUCh. 26.16 - Which pathogen is most associated with cervical...Ch. 26.16 - What is the most common bacterial STI in the...Ch. 26 - The structures that draw an ovulated oocyte into...Ch. 26 - The usual site of embryo implantation is (a) the...Ch. 26 - The male homologue of the female clitoris is (a)...Ch. 26 - Which of the following is correct relative to...Ch. 26 - Secondary sex characteristics are (a) present in...Ch. 26 - Which of the following produces the male sex...Ch. 26 - Which will occur as a result of nondescent of the...Ch. 26 - The normal diploid number of human chromosomes is...Ch. 26 - Relative to differences between mitosis and...Ch. 26 - Match the key choices with the descriptive phrases...Ch. 26 - The menstrual cycle can be divided into three...Ch. 26 - Spermatozoa are to seminiferous tubules as oocytes...Ch. 26 - Which of the following does not add a secretion...Ch. 26 - The corpus luteum is formed at the site of (a)...Ch. 26 - The sex of a child is determined by (a) the sex...Ch. 26 - FSH is to estrogens as estrogens are to (a)...Ch. 26 - Prob. 17SAQCh. 26 - Describe the major structural (and functional)...Ch. 26 - Oogenesis in the female results in one functional...Ch. 26 - Define menarche. What does it indicate?Ch. 26 - Trace the pathway of a sperm from the male testes...Ch. 26 - Prob. 22SAQCh. 26 - Both the epithelium of the vagina and the cervical...Ch. 26 - Some anatomy students were saying that the...Ch. 26 - A man swam in a cold lake for an hour and then...Ch. 26 - Prob. 1CCSCh. 26 - Prob. 2CCSCh. 26 - Prob. 3CCSCh. 26 - We are back to look in on Mr. Heyden today. Since...
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