BIOL 1051H Study Guide - Winter 2018, Comprehensive Midterm Notes - Hormone, Capillary, Urine
Document Summary
Flow of air in and out of lung depends on a pressure difference between air within. Respiratory muscles change lung volumes and create difference in pressure relative to lungs and outside body the atmosphere that controls air flow. Decreased urine osmolality and increased urine volume. Sexual reproduction is biparent, meaning offspring receives genes from two parents. Offspring is not genetically identical to either on. Gametes (sex cells) produced by each parent. Male and female gametes (sex cells) combine their genes to form a zygote (fertilized egg) First few years of adolescence, until the first menstrual period for girls or the first ejactulation of viable sperm in boys. Age 14 in boys and 12 in girls. Surge of pituitary gonadotropins (fsh, lh) awakens the reproductive system, leading to onset of puberty. Erythropoiesis, basal metabolic rate, and increase in appetite. Pubic hair, axillary hair, and facial hair develop in response to dihydrotestosterone (dht) Stimulates sperm production and libido (sex drive)
