TS EAMCET Human Reproduction — practice questions
70 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice TS EAMCET Human Reproduction in the app →Each testis is divided into approximately how many compartments called testicular lobules?Each seminiferous tubule is lined on its inside by two types of cells:Leydig cells (interstitial cells) of the testis are responsible for:The secretions constituting seminal plasma are rich in all of the following EXCEPT:The enlarged end of the penis covered by a loose fold of skin (foreskin) is called the:The primary female sex organs that produce ovum and steroid hormones are the:The finger-like projections at the edge of the infundibulum (fallopian tube), which help in collection of the The part of the fallopian tube where fertilisation typically takes place is the:The female external genitalia (vulva) include all of the following EXCEPT:The glandular tissue of each breast is divided into approximately how many mammary lobes containing alveoli?In males, LH acts on which cells to stimulate androgen secretion?In males, FSH acts on which cells?The transformation of spermatids into spermatozoa is called:After spermiogenesis, the release of mature sperm from the seminiferous tubules is called:During each coitus, a human male typically ejaculates approximately:For normal male fertility, at least what percentage of ejaculated sperms must show vigorous motility?At puberty, approximately how many primary follicles remain in each ovary?The new membrane that forms around the secondary oocyte just before ovulation is called the:In human females, the first menstruation at puberty is termed:The average menstrual cycle in human females lasts approximately:The menstrual phase normally lasts approximately:The reproductive phase in women, marked by cyclic menstruation, extends between:After fertilisation, the resulting zygote first undergoes cleavage as it moves through the:The embryo with 8–16 blastomeres is called the:In a blastocyst, the outer layer attaching to the endometrium is the *trophoblast*, and the inner cluster thatThe structural and functional unit between the developing foetus and maternal body that supports exchange of gWhich of the following hormones is produced by the placenta during pregnancy?Which hormone, secreted by the ovary in the later phase of pregnancy, is produced *only* during pregnancy?By the end of which month/period of pregnancy is the human embryo's heart formed?The average gestation period in humans is approximately:The mild uterine contractions originating from the fully developed foetus and placenta that initiate parturitiThe hormone primarily responsible for stronger uterine contractions during parturition is:The first milk produced during the initial few days of lactation, rich in antibodies essential for the newbornWhich of the following statements is TRUE?How many chromosomes are present in a normal human zygote immediately after fertilisation?The scrotum keeps the testes cooler than internal body temperature by about:Each testicular lobule contains how many seminiferous tubules?Inside seminiferous tubules, which cells nourish the germ cells?Seminiferous tubules open into the vasa efferentia through the:The epididymis lies along which surface of each testis?After receiving the seminal vesicle duct, the vas deferens opens into the urethra as the:Human seminal plasma is especially rich in which sugar?Secretions of the bulbourethral glands also help in:In an adult woman, each ovary is about how long?The shape of the human uterus resembles:Which two structures together form the birth canal?Which uterine layer contracts strongly during delivery of the baby?The clitoris lies at the upper junction of the:In the breast, several mammary ducts join to form a wider:Spermatogenesis starts at puberty mainly due to a rise in:In the testis, FSH acts on which cells to aid spermiogenesis?About how many sperms does a human male release in one ejaculation?For normal fertility, at least what share of sperms must have normal shape and size?How many chromosomes does each human secondary spermatocyte carry?When are oogonia formed in the human female?A primary follicle becomes secondary when it gains more granulosa layers and a:At around what age do menstrual cycles stop in women?After implantation, chorionic villi develop as projections of the:By the end of 12 weeks of pregnancy, which foetal features are well developed?The first movements of a human foetus are usually noticed during the:Eyelashes form and the eyelids separate in a foetus by the end of about:The germ layer that appears between ectoderm and endoderm is the:Which cells of the inner cell mass can give rise to all tissues and organs?About how many testicular lobules does each human testis contain?Which cells inside the seminiferous tubules nourish the developing germ cells?The interstitial Leydig cells of the testis synthesise and secrete which hormones?Through which structure do seminiferous tubules open into the vasa efferentia?What covers the enlarged end of the penis, the glans penis?What do the ovaries, the primary female sex organs, produce?Which funnel-shaped part of the fallopian tube lies closest to the ovary?