04:27Parturition and Lactation | Human Reproduction (Part 8) | Class 12Scholarly Education639views1rank
04:53Embryology | Fertilization, Cleavage, Blastulation | First week of embryonic development | ZygoteAnimated biology With arpan1151views
04:09Acrosomal Reaction I Acrosomal Process I proteolytic enzymes I Bindin I RhoB I ResactI Golgi ComplexSM's Biology767views
04:11194 - Estrogen, Progesterone, LH, FSH, ovulation, menses, Proliferative and etc. - USMLE STEP 1 ACEUSMLE ACE INC674views
03:47What Is The Menstrual Cycle? | Physiology | Biology | FuseSchoolFuseSchool - Global Education505views
05:36Oogenesis: Meiosis in Females, Part 1 of 2, from Thinkwell's Video Biology CourseThinkwellVids985views
05:22spermatogenesis I spermatogenesis class 12 I spermatogenesis physiology I Process of sperm formationscientech biology842views
05:32Human Reproduction Part 1- Female Reproductive System-Leaving Cert BiologyBiology Bugbears966views
03:16Human #female reproductive system |sexual reproduction| 10th Biology :CBSE | ncert class 10 |ScienceGrade booster1393views
05:33Human reproduction Part 2-The Male Reproductive System-Leaving Cert BiologyBiology Bugbears905views
05:38Reproductive System, Part 4 - Pregnancy & Development: Crash Course Anatomy & Physiology #43CrashCourse598views
05:17Types of Reproduction: Sexual versus Asexual Reproduction - iBiology & Youreka ScienceiBiology544views
Multiple ChoiceIndividuals clustered in the same area that release their gametes into the water at the same time are engaging in which of the following? 349views
Multiple ChoiceSome insect females are able to store sperm in __________ until environmental conditions are favorable for the development of their offspring. 313views
Multiple ChoiceAn ovarian follicle undergoes several changes during the human female's menstrual cycle. Which of the following sequences is correct, beginning with the oocyte? 492views
Multiple ChoiceImmediately after ovulation into the coelom, an egg is collected into the __________. 680views
Multiple ChoiceA vasectomy is an effective technique for birth control in males because it __________. 325views
Multiple ChoiceIf a woman wants to become pregnant, what is the optimal day on which to have sexual intercourse? 302views1rank
Multiple ChoicePregnancy tests detect a hormone in a woman's urine that is present only when an embryo is developing in her uterus. This hormone is secreted by __________. 377views
Multiple ChoiceThrough which of the following does a human sperm cell not have to pass in order to fertilize an egg? 339views
Multiple ChoiceA large number of hormones function in the human menstrual cycle, but only two of them are called female sex hormones. These are __________. 378views
Multiple ChoiceWhat is the source of the hormones that, when suddenly absent, are directly responsible for the onset of menstruation? 496views
Multiple ChoiceAfter the menstrual period, which of the following hormones is the first to increase significantly every 28 days or so, initiating the ovarian cycle? 423views
Multiple ChoiceConcentrations of which hormone stimulate the hypothalamus to increase or decrease hormones that stimulate sperm production in the testes? 329views
Multiple ChoiceIn many mammals, the testes are located outside the abdominal cavity within the scrotum because __________. 445views
Multiple ChoiceSperm cells have several components; the function of the acrosome is to __________. 647views
Multiple ChoiceIn mammals, meiosis to produce the female egg cell is initiated in the __________. 615views
Multiple ChoiceWhich of the following statements about luteinizing hormone (LH) in the female reproductive system is correct? 571views
Multiple ChoiceCompared to polar bodies, the amount of cytoplasm found in an animal egg cell is __________. 441views
Multiple ChoiceWhich of the following choices correctly lists the four phases of the sexual response cycle in their proper sequence? 406views
Multiple ChoiceWhich of the following statements about oogenesis and spermatogenesis is correct? 823views1rank
Textbook QuestionThis graph plots the rise and fall of pituitary and ovarian hormones during the human ovarian cycle. Identify each hormone (A–D) and the reproductive events with which each one is associated (P–S). For A–D, choose from estrogen, LH, FSH, and progesterone. For P–S, choose from ovulation, growth of follicle, menstruation, and development of corpus luteum. How would the right-hand side of this graph be altered if pregnancy occurred? What other hormone is responsible for triggering this change? 1253views
Textbook QuestionMatch each function with the correct structure. 2. Turns into the corpus luteum 3. Female gonad 4. Site of spermatogenesis 5. Site of fertilization in humans 6. Site of human gestation 7. Sperm duct 8. Secretes seminal fluid 9. Lining of uterus a. vas deferens b. prostate gland c. endometrium d. testis e. follicle f. uterus g. ovary h. oviduct380views
Textbook QuestionAdd labels to the figure that follows, which illustrates female internal reproductive organs. 521views
Textbook QuestionWhat happens to the egg cell and the remains of the tissue it developed in at ovulation?460views
Textbook QuestionWhich of the following is not properly paired? a. seminiferous tubule—cervix b. vas deferens—oviduct c. testosterone—estradiol d. scrotum—labia majora711views
Textbook QuestionA sperm cell follows which path? a. seminiferous tubules, epididymis, vas deferens, urethra; b. urethra, vas deferens, seminiferous tubules, epididymis; c. seminiferous tubules, vas deferens, epididymis, urethra; d. epididymis, seminiferous tubules, vas deferens, urethra; e. epididymis, vas deferens, seminiferous tubules, urethra878views
Textbook QuestionAn egg cell that is not fertilized follows which path? a. ovary, oviduct, uterus, cervix; b. ovary, uterus, oviduct, cervix; c. oviduct, ovary, cervix, uterus; d. oviduct, ovary, uterus, cervix; e. ovary, oviduct, cervix, uterus1176views
Textbook QuestionWhich of the following is mismatched? a. urethra: sperm passage; b. testes: hormone production; c. vas deferens: semen production; d. seminiferous tubules: sperm production431views
Textbook QuestionThe production of gametes . a. begins at puberty in males and females; b. requires that the testes of males produce semen; c. results in the production of diploid cells from haploid cells; d. begins at puberty in females; e. produces sperm and eggs that carry half the number of chromosomes as nongametes830views
Textbook QuestionWhich statement about human reproduction is false? a. Fertilization occurs in the oviduct. b. Spermatogenesis and oogenesis require different temperatures. c. An oocyte completes meiosis after a sperm penetrates it. d. The earliest stages of spermatogenesis occur closest to the lumen of the seminiferous tubules.586views
Textbook QuestionAfter a sperm penetrates an egg, it is important that the vitelline layer separate from the egg so that it can a. secrete important hormones. b. enable the fertilized egg to implant in the uterus. c. prevent more than one sperm from entering the egg. d. attract additional sperm to the egg.553views
Textbook QuestionHow does a zygote differ from a mature egg? a. A zygote has more chromosomes. b. A zygote is smaller. c. A zygote consists of more than one cell. d. A zygote divides by meiosis.475views
Textbook QuestionA woman had several miscarriages. Her doctor suspected that a hormonal insufficiency was causing the lining of the uterus to break down, as it does during menstruation, terminating her pregnancies. Treatment with which of the following might help her remain pregnant? a. oxytocin b. follicle-stimulating hormone c. luteinizing hormone d. prolactin590views
Textbook QuestionThe embryos of reptiles (including birds) and mammals have systems of extraembryonic membranes. What are the functions of these membranes, and how do fish and frog embryos survive without them?330views
Textbook QuestionCompare sperm formation with egg formation. In what ways are the processes similar? In what ways are they different?576views