Anatomy & Physiology
5th Edition
ISBN: 9780321861580
Author: Marieb, Elaine N.
Publisher: Pearson College Div
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Chapter 26, Problem 15RQ
The sex of a child is determined by (a) the sex chromosome contained in the sperm, (b) the sex chromosome contained in the oocyte, (c) the number of sperm fertilizing the oocyte, (d) the position of the fetus in the uterus.
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Chapter 26 Solutions
Anatomy & Physiology
Ch. 26 - What are the two major functions of the testes?Ch. 26 - Which of the tubular structures shown in Figure...Ch. 26 - Muscle activity and the pampiniform venous plexus...Ch. 26 - What is the function of the erectile tissue of the...Ch. 26 - Name the organs of the male duct system in order,...Ch. 26 - What are two functions of the stereocilia on the...Ch. 26 - Which accessory organ of the male duct system runs...Ch. 26 - Adolph, a 68-year-old gentleman, has trouble...Ch. 26 - Prob. 9CYUCh. 26 - What is semen?
Ch. 26 - What is erection and which division of the ANS...Ch. 26 - Prob. 12CYUCh. 26 - What is the final outcome of meiosis?Ch. 26 - Describe the major structural and functional...Ch. 26 - Prob. 15CYUCh. 26 - What is the HPG axis?Ch. 26 - Prob. 17CYUCh. 26 - What are three secondary sex characteristics...Ch. 26 - Briefly, what are the internal genitalia of a...Ch. 26 - What two roles do the ovaries assume?Ch. 26 - Prob. 21CYUCh. 26 - Prob. 22CYUCh. 26 - Oocytes are ovulated into the peritoneal cavity...Ch. 26 - What portion of the female duct system is the...Ch. 26 - What is the female homologue of the bulbo-urethral...Ch. 26 - Cite similarities and differences between the...Ch. 26 - Developmentally, mammary glands are modifications...Ch. 26 - From what cell types does breast cancer usually...Ch. 26 - How do the haploid cells arising from oogenesis...Ch. 26 - How do identical twins differ developmentally from...Ch. 26 - What occurs in the luteal phase of the ovarian...Ch. 26 - Which hormone plays an important role in letting...Ch. 26 - Which hormone(s) prompt follicle growth? Which...Ch. 26 - Which gonadal hormone exerts positive feedback on...Ch. 26 - Which gonadal hormone causes the secondary sex...Ch. 26 - Prob. 36CYUCh. 26 - Which pathogen is most associated with cervical...Ch. 26 - 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. 17RQCh. 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. 22RQCh. 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 - Prob. 4CCS
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- Which of the following events does not take place when a fetus is 17 to 20 weeks old? (a) fetal movements quicken, (b) testes descend to the scrotum, (c) silklike hair covers the skin, (d) sweat glands form.arrow_forwardWhich of the following is required for successful fetal development after the egg has been fertilized? a) That the corpus luteum remains throughout the pregnancy b) Production of estrogen (estradiol) and progesterone from the placenta c) Release of hCG (human chorionic gonatotropin) from the placentaarrow_forwardWhich of the following statements about the uterine cervix is false? (a) It dilates at the end of the first stage of labor. (b) The internal os opens into the vagina. (c) The cervical glands secrete mucus. (d) It contains the cervical canal.arrow_forward
- The fetal period is (a) from weeks 9–38, (b) the time of rapid growth of body organs, (c) a time of cell differentiation, (d) all of the above, (e) none of the above.arrow_forwardDuring which trimester does the risk of spontaneous miscarriage decrease significantly? A) First B) Second C) Third D) Fourtharrow_forward(a) Give two types of germ layer and what do they become (b)Briefly describe why it is important the blood supply of the mother is separated from the foetus.arrow_forward
- Sperm need to be deposited in the vagina close to the time of ovulation because… a) Fertilisation needs to occur in the uterus b) The probability of fertilisation occurring in humans is about 25% c) The fusion of male and female gametes is the beginning of embryonic development d) Sperm and ovum are viable for a short time onlyarrow_forwardWhat do the inner and outer surfaces of the placenta consist of? a) amniotic tissue and corpus luteum b) chorion and uterine tissue c) amniotic tissue and blastocyst d) corpus luteum and chorionarrow_forwardThe surface that enables active and passive exchange between the fetal and maternal bloodstreams is the (a) yolk stalk. (b) chorionic villi. (c) umbilical veins. (d) umbilical arteries.arrow_forward
- a) Describe the process of neuralation. b) Identify the germ layer from which the nervous system forms. c) Describe when in development neuralation occurs. d) Identify a teratogen that could affect the development of the brain during this stage of pregnancy.arrow_forwardThe ovaries stop secreting estrogens and testosterone after menopause. This does not lead to (a) an increase in the growth of pubic hair, (b) cardiovascular disorders, (c) a decline in bone mass, (d) vaginal dryness.arrow_forwarda) Do any sperm enter the pelvic cavity of the female? Why or why not7 b) What is an ectopic pregnancy, and how can it happen? c) Put the following vestibular-perinea! structures in their proper order from the anterior to the posterior aspect: vaginal orifice,anus, external urethral opening, and clitoris.arrow_forward
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