MALE Reproduction
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Created by:
Jamie_Master on June 9, 2011
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Biol 242, Lower Columbia College
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54 terms
Terms | Definitions |
|---|---|
 What's the main function of reproduction? | to procreate |
| Both women and men have what three structures in common? | Gonads, ducts, accessory glands. |
| ___ produce gametes. | gonads |
| ____ transport gametes to site of fertilization or outside body. | ducts |
| _________ add liquid secretions to act as lubricant or help transport fluid. | Accessory glands. |
| What has analogous structures? | Penis, clitoris, and scrotal sac and labial folds. |
| ____ means similarities. | analogous |
| _____ contains the testes and sperm production occurs here. | scrotum |
| Where is sperm made? | in testes |
| Seminiphorous tubules produce? | sperm |
| How does sperm travel from the seminiphorous tubules? | Epididymis to ductus deferens to ejeculatory duct and then to the urethra. |
| What are the three male accessory glands? | Seminal vesicles, prostate, bulbourethral glands. |
| ___ secrete fluid to transport fluid to sperm. | seminal vesicles |
| What is the consistency of seminal vesicles fluid? | a fructose rich fluid for energy. |
| What do sperm tails contain a lot of? | mitochondria for energy. |
| What makes the remainder of cream colored fluid? | Prostate |
| What do we measure in order to determine prostate problems? | We measure the PSA in blood to determine prostate problems. |
| what are responsible for lubricating urethra for ease of penetration. precum. | Bulbourethral glands. |
| T or F Males are only the only ones to have flagellum. | True. |
| What is the outer part of the male and surrounds testes? | scrotum |
| what allows the function of spermatogenesis? | seminiferous tubules |
| What means making of sperm? | spermatogenesis |
| What are the 2 types of cells within the seminiferous tubules? | spermatogenic cells, and sertoli cells |
| _______ cells produce sperm | spermatogenic cells |
| _____ cells support and nourish spermatogenic cells. | sertoli cells |
| what does interstitial cells mean? | between the cells |
| ___ are cells in within the interstitial fluid and produce testosterone. | leydig cells. |
| Name all the cells held by the testes? Note testes are surrounded by seminiferous tubules and interstitial spaces. | spermatogenic cells, sertoli cells, leydig cells. |
| What cells are not recognized until puberty and the body attacks them. | sertoli cells |
| What are the muscle layers of the penis? | cavernosum, and spongiosum |
| T or F males reproduce throughout life. | true |
| Who many sperm do males produce a day? and Why? | 300 million so they won't be endangered and procreate |
| gamete formation goes through ______. | meiosis |
| what is the outermost cells regarded as 2N or 46 chromosomes and divide a few times by mitosis? | Spermatogonia. |
| what are considered 2N and go through meiosis 1. | primary spermatocytes |
| ____ go through last phase of meiosis 1 and considered 2N | secondary spermatocytes |
| ______ go though meiosis 2 then we get 4N. | spermatids |
| _____ are loose bridges that are held together. Moved to epididymis by fluid pressure. Last stage of Meiosis 2 | spermatozoa. |
| What is the end result of spermatogenesis? | 4N |
| Name the flow of spermatogenesis? | spermatogium 2N (stem cell), primary spermatocyte, secondary spermatocyte 2N, spermatid (4n), and spermatozoa (4n). |
| Where does all the phases of mitosis and meiosis happen? | seminiferous tubules. |
| Hypothalamus produces ____ which are released in short bursts every 60-90 min in adult males. Binds to receptors in anterior pituitary released to bloodstream to the testes. Then trigger spermatogenic cells which produce hormones called inhibin. | GnRH (gonadotropic releasing hormone). |
| what hormones are stored in the anterior pituitary? | LH and FSH |
| *____ stimulates sperm production. | FSH |
| ____ cells produce testosterone. LH triggers them. | Leydig cells |
| If to much testosterone is produced a signal will be sent back to inhibit GnRH. This is an example of? | Negative feedback. |
| ____ functions for sperm maturation, ejaculation, and storage. | epididymis |
| who long does it sperm to travel through the epididymis? | 14 days. |
| _____ is 18 in. long and moves sperm by peristalsis. | Ductus (vas) deferens |
| ___ ___ is short between seminal vesicles and prostate. | ejaculatory duct |
| What are the male accessory glands? | seminal vesicles, prostate, boulbourethral glands. |
| _____ produces a sugar rich fluid 60%. | seminal vesicles |
| ____ is a milky fluid 25%. | prostate |
| _____ helps to neutralize any acidic urine thats left. | bulbourethral glands. |
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