PSYB20H3 Lecture Notes - Lecture 2: Schizophrenia, Quantitative Trait Locus, Y Chromosome
Document Summary
Gametes (sperm and ovum: men = several hundred million sperm are produced in the testicles each day, women = born with about 2 million immature ova (eggs) in their ovaries at birth, each continued in a follicle. Ovulation (periods) occur about every 28 days until menopause. Conception: after being expelled from the ovary, the ovum is swept through the fallopian tube toward the uterus, sperm then enter the vagina through ejaculation and travel through the cervix, fertilization takes place in the fallopian tubes. Inability to conceive after 12 months of trying: men = low sperm count, insufficiently motile sperm, genetics, women = failure to produce eggs/ova/normal ova, mucus in the cervix, disease in the uterine lining, blockage of the fallopian tube. Assisted reproductive technology: since it was first tested in 1978, more than 3 million children worldwide have been conceived through art. Including 3,500 per year in canada: methods used to achieve conception through artificial means includes:
