What is the role of progesterone in the female reproductive system? OA) start of menstruation OB) Stimulates the development of the endometrium O c) Conversion of the follicle to the corpus luteum OD) Promotes ovulation 13. Which of the following are needed for a muscle cell to contract? O A) Calcium and adenosine diphosphate (ADP) OB) Calcium and adenosine triphosphate (ATP) OC) Potassium and calcium OD) Sodium and calcium 14. You have been given a sample of tissue that has pillar-shaped cells arranged Tightly togeth OA) Squamous epithellum OB) Columnar epithelium OC) Transitional epithelium OD) Cuboidal epithelium 15 Where are the pressoreceptors and chemoreceptors (specialized sensory nerves that assist OA) Abdominal aorta B) Circle of Willis C) Carotid body
