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Reproductive Hormone
Learn about reproductive hormones
| Question | Answer |
|---|---|
| Name the hormone that is responsible for triggering puberty. | Releaser |
| State where releaser hormone is produced. | Hypothalamus |
| State where testosterone is produced. | Interstitial cells |
| State where FSH is produced. | Pituitary glands |
| Sperm is produced in what part of the testicle | Seminiferous tubules |
| Name the hormone that acts on the seminiferous tubules. | FSH |
| Name the process that occurs in the germline cells of the testes to produce gametes. | meiosis |
| State the 2 parts of the male reproductive system that produces seminal fluid. | 1. seminal fluid 2. prostate |
| Name the hormone that | |
| Explain the importance of seminal fluid. | Maintains mobility and viability of sperm |
| Name two substances in the seminal fluid | ATP/Enzymes/Sugars |
| Describe two roles of testosterone | 1. Acts on seminiferous tubules to produce sperm 2. stimulates prostate/seminal vesicle to produce seminal fluid 3. Negative feedback on FSH and ICSH production at the pituitary gland. |
| State where ICSH acts? | interstitial cells. |
| State which part of the brain produces ICSH | pituitary gland |
| Name the two roles of the follicle. | 1. protects ova 2. produces oestrogen |
| Location of fertilisation | Oviduct |
| Where are follicles found in the female reproductive system | ovary |
| State two roles of oestrogen. | 1. Thins cervical mucus 2. Thickens endometrium lining 3. Stimulates production of LH from pituitary gland |
| Which process occurs on days 1-5 approximately of a menstrual cycle. | Menstruation |
| Describe what is meant by menstruation | Shedding of endometrial lining through the vagina |
| Which phase occurs first in the menstrual cycle: a) luteal phase b) ovulation c) follicular phase | Follicular phase |
| Which process/stage comes first in the menstrual cycle: ovulation OR luteal phase | Luteal Phase |
| State what process occurs first: fertilisation or ovulation | Ovulation |
| Describe what is meant by ovulation | Egg released from the ovary. |
| Which hormone stimulates the development of a follicle during the follicular phase. | FSH |
| Which hormone thickens the endometrium during the follicular phase. | Oestrogen |
| The hormone responsible for causing ovulation | LH |
| Which hormone causes the LH surge. | Oestrogen |
| Put the following hormones in order 1. LH 2. Progesterone 3, Oestrogen 4. FSH | FSH - Oestrogen - LH - Progesterone |
| After the egg is released the follicle becomes the | corpus luteum |
| Which hormone maintains the corpus luteum | LH |
| The corpus luteum exists in which phase: Follicular or Luteal | Luteal |
| Which structure produces progesterone | Corpus Luteum |
| Describe the role of progesterone in the menstrual cycle. | Further develop the endometrium |
| What causes the corpus luteum to break down at the end of the menstrual cycle. | LH decreases |
| When the corpus luteum breaks down what hormone is no longer produced | Decreases progesterone |
| When progesterone falls at the end of the cell what does this cause | endometrium to be shed/menstruation |
| When does LH fall at the end of the menstrual cycle a) non pregnant female b) pregnant female | pregnant female |
| In a pregnant female state what happens to progesterone. | Remains high |
| Explain why progesterone levels remain high in pregnant females | Corpus luteum does not break down |