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Summary Human Reproduction
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Human Reproduction
Flashcards
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Flashcards
23 Flashcards
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Some examples from this set of practice questions
1.
What is the purpose of the testes
Answer: Hold the seminiferous tubules The seminiferous tubules are lined by epithelium cells which produce spermatozoa Specialized sertoli cells are rich in glycogen which serve as nutrients for the spermatids as they develop into the sperm cells Cells of Leydig in the interstitial cells found in between seminiferous tubules The cells of Leydig secrete testosterone
2.
What are the different tubes found in the male reproductive system and what are their functions
Answer: The epididymis is a coiled tube which lies outside the scrotum. This leads from the seminiferous tubules, temporarily stores sperm and later passes sperm into the vas deferens The vas deferens carries sperm from the epididymis through the abdomen into the ejaculatory duct Ejaculatory duct has contractions which force the semen through the urethra Urethra is the common tube for the passage of semen and urine Accessory glands secrete a fluid which provides nutrition and promotes movement of sperm
3.
Explain the purpose of the penis
Answer: made of spongy tissue Fills with blood in order to become erect Transfers semen from the male into the female
4.
Explain the purpose of the ovaries
Answer: Germinal epithelium produces follicles Oogenesis produces ova Follicles secrete oestrogen and progesterone Sex organs They are held in place by ligaments
5.
Explain the purpose of the fallopian tubes
Answer: Convey ova from the ovary to the uterus The fallopian tubes open into the uterus There are a lot of blood vessels surrounding endometrium lining The uterus leads to the cervix, the opening of the vagina
6.
What is the purpose of the vagina
Answer: Leads to the cervix and then uterus Opens by the vulva
7.
Explain what happens to males and females during puberty
Answer: MALES Grow pubic hair Grow armpit hair Grow facial hair Their voices deepen There is muscle development Their shoulders grow broader FEMALES Grow armpit hair Grow pubic hair There is breast growth Menstruation starts Hips widen
8.
Explain what happens to males and females during puberty
Answer: MALES Grow pubic hair Grow armpit hair Grow facial hair Their voices deepen There is muscle development Their shoulders grow broader FEMALES Grow armpit hair Grow pubic hair There is breast growth Menstruation starts Hips widen
9.
What is spermatogenesis
Answer: the production of spermatozoa
10.
Explain the process of spermatogenesis
Answer: haploid cells are created. Either X or Y chromosomes Germinal epithelial cells undergo meiosis For haploid gametes are produced (spermatids) Spermatids mature into spermatozoa
Content preview
CHAPTER FOURHUMAN REPRODUCTION
BASICS
● Haploid gamete + haploid gamete = diploid zygote
● A zygote undergoes mitosis multiple times
● Some cells change physically or chemically
● The increased amount of differentiated cells perform different functions
● Meiosis starts at puberty
● Genetic diversity and a constant chromosome number through generations
is ensured
MALE REPRODUCTIVE SYSTEM
, TESTES
● Hold the seminiferous tubules
● The seminiferous tubules are lined by epithelium cells which produce
spermatozoa
● Specialized sertoli cells are rich in glycogen which serve as nutrients
for the spermatids as they develop into the sperm cells
● Cells of Leydig in the interstitial cells found in between seminiferous
tubules
● The cells of Leydig secrete testosterone
Transverse
Section of the
testis
Longitudinal Section of the Testis
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