Sperm motility is one of the features of any fertility test. The movement of human sperm is possible because of the presence of cilia acrosome flagellum actin tubule pseudopodia
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- In the male reproductive gland in the growth zone there are 20000 primary spermatocytes. How many secondary spermatocytes and spermatozoacan be formedWhich of the follwing structures is not made up of several cells? Practris Seminiferous Tubule Follicle O Mitotic Spindle AntherWhich of the follwing structures is not made up of several cells? Seminiferous Tubule Follicle O Mitotic Spindle Anther
- Mucus plug is formed in cervix during pregnancy under the influence of hormone Estrogen Progesterone LH Estrogen and progesteroneThe ducts of testes are made up of which of the following structures? Seminiferous tubules, ampulla of vas, rete testis, efferent ducts, ductus epididymis Seminiferous tubules, straight tubules, rete testis, ejaculatory, ductus epididymis Seminiferous tubules, straight tubules, vas deference, efferent ducts, ductus epididymis Seminiferous tubules, straight tubules, rete testis, efferent ducts, ductus deferenceFigure 43.17 Which of the following statements about the menstrual cycle is false? Progesterone levels rise during the luteal phase of the ovarian cycle and the secretory phase of the uterine cycle. Menstruation occurs just after LH and FSH levels peak. Menstruation occurs after progesterone levels drop. Estrogen levels rise before ovulation, while progesterone levels rise after.
- An individual is found to have some tetraploid liver cells but diploid kidney cells. Be specific in explaining how this condition might arise.Cystocele only occurs in femals. O True O FalseCheck all the answers and answe the question that isn't answered. Which step triggers release of enzymes by the head of a sperm cell which helpdissolve the zona pellucida? Step C involving the Acrosome reaction. Which step forms the fertilization membrane which disallows multiple sperm cellsfrom entering the ovum? Step A including the membrane fusion as corticalgranules are released. In what step are pronuclei formed? Step D where the sperm's head contains thenucleus and must meet the pronucleus. At what step does the ovum complete meiosis?? Which step is the "official formation of a zygote? Step D (fusion of a nuclei).
- Fast block to polyspermy is achieved by: Select one: O a. membrane depolarization O b. action potential Oc. proteasomal degradation of sperm Od. proteasomal degradation of sperm receptors actin polymerizationRat Testis at 10x under microscope -Basement membrane / basal lamina (same thing) -Sertoli celland nucleus -Spermatogonia -Spermatocytes (primary or secondary) - Spermatids - Spermatozoa (nuclei and tails) - Blood vessel - Seminiferous tubule - Tubule lumen label the structures listed above are present on your photos (if they’re not present, no need to).Color the following parts: Spermatic Cord- Gray Fibrous tissue-Brown Seminiferous tubules-Yellow Rete testis-blue Efferent ductules-green Epididymis Orange Urethra-purple