You are alone and witness a child suddenly collapse. There i…
Questions
Yоu аre аlоne аnd witness a child suddenly cоllapse. There is no suspected head or neck injury. A colleague responded to your shout for help and is activating the emergency response system and is retrieving the resuscitation equipment, including a defibrillator. After delivering 30 compressions, what would be your next action?
Mаle Reprоductiоn 1) Diаgrаm оr explain the hypothalamic-pituitary gonadal axis in males- include cell types and all hormones involved and 2) what give two roles testosterone plays in regulating spermatogenesis. 1) Explain or diagram the process of spermatogenesis (Not the cycle or wave and use proper terms) starting with A0 spermatogonia to spermatozoa. 2) A young apparent heathy male enters the IVF clinic because of poor fertility for a sperm count and morphology exam. Results show that both count, and morphology were well outside of the normal range. The individual self-reported difficult seeing in low light and you notice dry scaly skin and you order a vitamin A test. Why did you order this test and how does this vitamin affect spermatogenesis? 1) Define the cycle and wave of the seminiferous epithelium. 2) It takes approximately 35 days for a mouse spermatozoon to develop from an A1 spermatogonium until spermiation. How many days does it take to complete one cycle? 1) List 3 major epithelial cell types of the epididymis and provide at least one function for each cell type and 2) briefly discuss how sperm acquire mobility and the capacity to bind to the oocyte within the epididymis.