04:27Parturition and Lactation | Human Reproduction (Part 8) | Class 12Scholarly Education621views1rank
04:53Embryology | Fertilization, Cleavage, Blastulation | First week of embryonic development | ZygoteAnimated biology With arpan1133views
04:09Acrosomal Reaction I Acrosomal Process I proteolytic enzymes I Bindin I RhoB I ResactI Golgi ComplexSM's Biology751views
04:11194 - Estrogen, Progesterone, LH, FSH, ovulation, menses, Proliferative and etc. - USMLE STEP 1 ACEUSMLE ACE INC663views
03:47What Is The Menstrual Cycle? | Physiology | Biology | FuseSchoolFuseSchool - Global Education494views
05:36Oogenesis: Meiosis in Females, Part 1 of 2, from Thinkwell's Video Biology CourseThinkwellVids960views
05:22spermatogenesis I spermatogenesis class 12 I spermatogenesis physiology I Process of sperm formationscientech biology832views
05:32Human Reproduction Part 1- Female Reproductive System-Leaving Cert BiologyBiology Bugbears951views
03:16Human #female reproductive system |sexual reproduction| 10th Biology :CBSE | ncert class 10 |ScienceGrade booster1370views
05:33Human reproduction Part 2-The Male Reproductive System-Leaving Cert BiologyBiology Bugbears889views
05:38Reproductive System, Part 4 - Pregnancy & Development: Crash Course Anatomy & Physiology #43CrashCourse584views
05:17Types of Reproduction: Sexual versus Asexual Reproduction - iBiology & Youreka ScienceiBiology517views
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? 339views
Multiple ChoiceSome insect females are able to store sperm in __________ until environmental conditions are favorable for the development of their offspring. 304views
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? 481views
Multiple ChoiceImmediately after ovulation into the coelom, an egg is collected into the __________. 661views
Multiple ChoiceA vasectomy is an effective technique for birth control in males because it __________. 316views
Multiple ChoiceIf a woman wants to become pregnant, what is the optimal day on which to have sexual intercourse? 294views1rank
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 __________. 367views
Multiple ChoiceThrough which of the following does a human sperm cell not have to pass in order to fertilize an egg? 333views
Multiple ChoiceA large number of hormones function in the human menstrual cycle, but only two of them are called female sex hormones. These are __________. 367views
Multiple ChoiceWhat is the source of the hormones that, when suddenly absent, are directly responsible for the onset of menstruation? 487views
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? 418views
Multiple ChoiceConcentrations of which hormone stimulate the hypothalamus to increase or decrease hormones that stimulate sperm production in the testes? 317views
Multiple ChoiceIn many mammals, the testes are located outside the abdominal cavity within the scrotum because __________. 438views
Multiple ChoiceSperm cells have several components; the function of the acrosome is to __________. 630views
Multiple ChoiceIn mammals, meiosis to produce the female egg cell is initiated in the __________. 604views
Multiple ChoiceWhich of the following statements about luteinizing hormone (LH) in the female reproductive system is correct? 558views
Multiple ChoiceCompared to polar bodies, the amount of cytoplasm found in an animal egg cell is __________. 435views
Multiple ChoiceWhich of the following choices correctly lists the four phases of the sexual response cycle in their proper sequence? 398views
Multiple ChoiceWhich of the following statements about oogenesis and spermatogenesis is correct? 816views1rank
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? 1215views
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. oviduct368views
Textbook QuestionAdd labels to the figure that follows, which illustrates female internal reproductive organs. 504views
Textbook QuestionWhat happens to the egg cell and the remains of the tissue it developed in at ovulation?452views
Textbook QuestionWhich of the following is not properly paired? a. seminiferous tubule—cervix b. vas deferens—oviduct c. testosterone—estradiol d. scrotum—labia majora699views
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, urethra861views
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, uterus1159views
Textbook QuestionWhich of the following is mismatched? a. urethra: sperm passage; b. testes: hormone production; c. vas deferens: semen production; d. seminiferous tubules: sperm production418views
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 nongametes803views
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.574views
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.531views
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.461views
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. prolactin578views
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?322views
Textbook QuestionCompare sperm formation with egg formation. In what ways are the processes similar? In what ways are they different?559views