Anatomy & Physiology I BSC2085C Study Guide Answers - Week 4 Final Exam 2023

Anatomy & Physiology I BSC2085C Study Guide Answers - Week 4 Final Exam Anatomy & Physiology I BSC2085C Study Guide Answers - Week 4 Final Exam Dr. Jeff Allyn Week 4 – Chapters 27, 28 and 29 Section 1 1. What is considered to be a normal sperm count per mL of semen for human males? 50 – 120 million sperm/mL semen 2. This disc-shaped organ will serve to nourish (feed) the fetus and it is attached to the uterine wall. The placenta 3. If an infant is born with this disorder, noted in its urine, he/she will be unable to produce an important amino acid for the formation of melanin, epinephrine, norepinephrine, etc. Phenylketonuria 4. What sperm count will typically be associated with infertility? 20 – 25 million sperm/mL semen 5. In order to penetrate the egg, a spermatozoon must secrete enzymes from this specific structure. Acrosome 6. What is a teratogen and what will it most likely cause? A virus, chemical or other agent that is capable of causing anatomical deformities in the fetus. It will most likely cause limb abnormalities. 7. How long after an egg is released (ovulation) does that egg have to be fertilized before it dies? Within 12 - 24 hours 8. What is the actual definition of an egg or ovum? Any presentation or stage of the primary oocyte to the fertilized egg 9. A male has this erectile tissue in the penis, but the female does NOT have it her counterpart, the clitoris. The corpus spongiosum 10. When does the developing individual become a “fetus”? At the end of 8 days of gestation (pregnancy) 11. If we see an XXY combination of sex chromosome, in other words a sterile male with underdeveloped testes, overdeveloped breast and long arms, what syndrome are we looking at with this? Klinefelter syndrome