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Reproductive system
reproductive system
| Question | Answer |
|---|---|
| somatic cells contain how many chromosomes | 46 |
| of the 46 chromosomes how many are sex chromosomes | 2 |
| what the other chromosomes called that aren't sex chromosomes | autosomes |
| the sperms contains ...... chromosomes | 23 |
| the egg contains.... chromosomes | 23 |
| the combination of ......... determines the sex of a baby | sex |
| x chromosomes are ...... | female |
| y chromosomes are.... | male |
| the mother always provides ..... chromosomes | x |
| how are somatic cells divided | mitosis |
| sex cells divide by | meiosis |
| mitosis creates... | another cell with all of the DNA from the first cell |
| meiosis creates | another cell with only half of the DNA as the original |
| how many cycles of division is meiosis | 2 |
| when an egg precursor cell divides, half of the genetic material is discarded in the form of | polar body |
| the main structures of the female reproductive system | vagina, uterus, fallopian tubes, ovaries |
| what are the layers of the uterus | endometruim, myometrium, perimetruim |
| what is the opening to the cervix called | cervical os |
| how is the vagina lubricated during sex | glands in the vagina secrete fluid |
| the outer portion of the female genitalia contains 2 folds called | labium minus (inner lip area), labium majus (outer lip area) |
| the vagina terminates at the | cervix |
| the uterus is what kind of organ | muscular |
| the endometrium layer of the uterus does what? | fertilized egg deposits here |
| the myometrium layer of the uterus does what | middle muscle layer |
| the perimetrium layer is the... layer | outer |
| an egg is only present in the uterus during | ovulation |
| ovulation is | when an egg matures in the ovary and is ejected into the fallopian tube |
| the male reproductive system included the | penis, testes, vas deferens, epididymis, seminiferous tubules, prostate gland and bulbourethral gland. |
| what is the storage structure for sperm | epidydimis |
| the epidydimis is located where | on the top of each testicle |
| the .... is a muscular tube that transports sperm from the epididymis to the urethra during ejaculation | vas deferens |
| the winding tubes in the testes are called | seminiferous tubules |
| sperm are produced by dividing cells called | sertoli cells |
| during development what develop near the kidneys | ovaries and testes |
| testicles pass through abdonimal walls to the scrotum through | small canal (descend out) |
| the small canal the testicles pass through is called | inguinal canal |
| how does an inguinal hernia happen | if the inguinal canal does not close after testes drop, the small intestines may fall through |
| what is the name of the tail of a sperm | flagellum |
| what powers the sperm tail | mitocondria |
| what are the 3 parts of a sperm | head, midpiece, tail |
| where is mitochondria found in sperm | midpiece |
| how does the sperm break through the barrier of the egg | sperm contain enzymes to digest through the wall. |
| where is the DNA in a sperm | the head |
| what are the 3 spongy tubes in penis | corpus cavernous (left & right) and corpus spongiosum |
| what system causes arteries to supply blood to the penis to dilate | autonomic nervous system |
| what system controls ejaculation | sympathetic nervous system |
| how does the sympathetic nervous system control ejaculation | contracts smooth muscle around the glands, epididymis, vas deferens and urethra |
| what causes ED | peripheral atherosclerosis |
| what does viagra do | inhibits the enzyme involved in dilating blood vessels in the penis from releasing, keeping the vasculature in the penis constricted |
Created by:
Miccimouse
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