Question

Male Female Identify (name) the Property as it Occurs in Males and Females 1 Name of the stem cells. 2 Approximate number of stem cells at the beginning of life. 3 Meiosis I, Meiosis II, or both are used to produce gametes? Number of viable gametes from a single stem cell. 5 Specific structure in which gametes mature (be specific!) 6 How long does it take the gametes to mature? 7 Name of the hypothalamic hormone(s). 8 Name of the anterior pituitary hormone(s). 9 Anterior pituitary hormone(s) binds to receptors on which cell(s)? 10 Major hormone(s) produced by the cell(s) in 9 (as a result of binding by the anterior pit hormone)? 1 Where are these cells in 10 located (be specific!)? 12 The name of the cells involved and the cause of the increased concentration of the major hormone Identify (name) the Property as it Occurs in Males and Females Male Female 13 Receptors for the major hormones are located where? I.e., what are the target tissues? Although many exist, just name two. 14 Are the major hormones carried around by plasma binding proteins? Name? 15 The entire system uses negative. positive, or both kinds of feedback?

Answer 1

Males Females

1. Spermatogonia -     Ova

2. Uncountable -     1 million

3. both - Meiosis I( Meiosis II only occurs in egg cells when fertilized by sperm)

4. four - one

5. Lumen of seminiferous tubules in Testis - Graafian Follicle

6. 64 days - 14 days

7. Gonadotrophin releasing hormone - Oxytocin and Gonadotrophin releasing hormone

8.follicle stimulating hormone (FSH) and Luteinizing hormone - FSH and Luteinizing hormones

9. LH binds to Leydig cells in Testis - Lh binds to Theca cells in Ovary

FSH binds to sertoli cells of Testis - FSH stimulates follicles

10. Testosterone- by Leydig cells    -    Estrogen and Progresterone by ovaries

Inhibin- by sertoli cells

11. Males-Leydig cells are interstitial cells located adjacent to the seminiferous tubules in the testes

Sertoli cells are located within the seminiferous tubules

Females-Theca cells are a group of endocrine cells in the ovary made up of connective tissue surrounding the follicle

Follicles are found in cortex of ovary

12. Males- LH levels cause testosterone production

Females- Estrogen causes peak in LH levels

13. Males- testosterone - Testis and prostrate

Females- estrogen- reproductive tract and urinary tract

14. Yes, Sex hormone binding hormone (SHBH)

15. Males- negative feedback loop

Females- negative feedback loop