menstrual cycle

• What system is responsible for releasing hormones into the bloodstream?

  Endocrine system
• What hormone is produced by the testes during puberty?

  Testosterone
• What hormone is produced by the ovaries during puberty?

  Estrogen
• How often does ovulation typically occur in the menstrual cycle?

  Every 28 days
• What happens to the uterus lining during the menstrual cycle in preparation for ovulation?

  It becomes thick and spongy
• What is the process called when an egg is released from the ovary?

  Ovulation
• What happens if the egg is not fertilized during the menstrual cycle?

  The egg and uterus lining are released as a period
• What hormone causes an egg to mature in the ovary?

  Follicle Stimulating Hormone (FSH)
• What hormone triggers the release of an egg during ovulation?

  Luteinizing Hormone (LH)
• What hormones are involved in maintaining the uterus lining?

  Estrogen and progesterone
• What is the role of estrogen in the menstrual cycle?

  It causes the uterus lining to thicken and inhibits FSH production
• What is the role of progesterone in the menstrual cycle?

  It maintains the uterus lining and inhibits FSH and LH
• What happens to the levels of FSH and LH after estrogen levels rise?

  FSH levels fall, and LH levels rise
• What happens to progesterone levels if fertilization does not occur?

  Progesterone levels fall, leading to menstruation
• If a woman has a period, what can you infer about her progesterone levels?

  Progesterone levels have fallen
• How do FSH and LH interact during the menstrual cycle?

  FSH stimulates egg maturation and estrogen production, while LH triggers ovulation
• If a woman's LH levels peak, what event is likely to occur next?

  Ovulation
• What is the relationship between estrogen and FSH in the menstrual cycle?

  Estrogen inhibits FSH production
• What is the relationship between progesterone and FSH/LH in the menstrual cycle?

  Progesterone inhibits FSH and LH production
• If a woman's progesterone levels are high, what is likely happening in her uterus?

  The uterus lining is being maintained
• What happens to the levels of estrogen and progesterone after ovulation if fertilization does not occur?

  Estrogen levels fall, and progesterone levels fall
• If a woman's FSH levels are high, what stage of the menstrual cycle is she likely in?

  Early follicular phase
• What is the role of the pituitary gland in the menstrual cycle?

  It releases FSH and LH
• If a woman's LH levels are low, what event is unlikely to occur?

  Ovulation
• What is the sequence of hormone interactions during the menstrual cycle?

  FSH → Estrogen → LH → Progesterone
• If a woman's estrogen levels are high, what is likely happening to her FSH levels?

  FSH levels are falling
• What is the role of the ovary in the menstrual cycle?

  It produces estrogen and progesterone and releases an egg
• If a woman's progesterone levels are low, what event is likely to occur next?

  Menstruation
• What is the role of the uterus in the menstrual cycle?

  It prepares a thick lining for potential implantation
• If a woman's FSH levels are low, what stage of the menstrual cycle is she likely in?

  Luteal phase
• What is the role of the pituitary gland in regulating the menstrual cycle?

  It releases FSH and LH to control egg maturation and ovulation
• If a woman's LH levels are high, what event is likely to occur next?

  Ovulation
• What is the role of the ovary in hormone production during the menstrual cycle?

  It produces estrogen and progesterone
• If a woman's progesterone levels are high, what event is unlikely to occur?

  Menstruation
• What is the role of the uterus lining in the menstrual cycle?

  It provides a suitable environment for implantation
• If a woman's estrogen levels are low, what event is likely to occur next?

  FSH levels rise
• What is the role of the pituitary gland in hormone regulation during the menstrual cycle?

  It releases FSH and LH to control egg maturation and ovulation
• If a woman's FSH levels are high, what event is likely to occur next?

  Egg maturation
• What is the role of the ovary in the release of hormones during the menstrual cycle?

  It releases estrogen and progesterone
• If a woman's LH levels are low, what event is unlikely to occur?

  Ovulation