Capacitation of spermatozoa occurs within the a. epididymis b. seminiferous tubules c. vagina. d. uterus & oviducts All of the following structures perform hematopoiesis roles at some time during embryonic and fetal development EXCEPT a. liver b. spleen c. red bone marrow d. a & b e. none of these Karyogamy a. occurs during fertilization b. is the union male and female pronuclei c. is the penetration by male gamete d. a & b e. a, b & c The obstetrician can determine definitively the sex of a human embryo as early as a. One month b. three months c. three weeks d. six weeks e. six months Neuromuscular development is not completely refined in higher mammals until a. after birth b. six months c. at term d. four weeks e. four months Match the most appropriate items in column A to column B Genital swelling urogenital sinus Muellerian duct genital folds genital tubercle a. labia minora b. vestibule c. labia majora d. overy e. clitoris Genital swelling urogenital sinus yolk sac genital tubercle Wolffian duct a. scrotum b. urethra c. penis d. spermatogonia e. testis Metanephric tubules metanephric ducts urogenital sinus metanephric diverticulum capillaries ingrowth a. bladder b. glomerulus ?. ureter, collecting ducts d. convoluted tubules e. renal mesenchyme myotome myoblastt myofibrils thin filaments thick filaments a. actin b. myoblasts c. muscle d. myosin e. myotubes