The female reproductive organs that produce eggs and hormones.

The male reproductive organs that produce sperm and the hormone testosterone.

The organs responsible for filtering blood in the kidneys.

The glands that produce insulin in the pancreas.

The period after childbirth when the mother’s body recovers, and the uterus returns to its pre-pregnancy state.

The time during pregnancy when the fetus develops organs.

The phase when a mother begins breastfeeding her newborn.

The duration of labor and delivery.

The monthly cycle of physical and hormonal changes in the female reproductive system, preparing the body for potential pregnancy.

A process that occurs only during pregnancy.

A cycle that only affects males.

A series of changes that happen in the male reproductive system.

A developing baby from roughly eight weeks after fertilization until birth, when most organs and body systems have formed.

A stage of development before fertilization occurs.

A term used to describe a newborn baby.

A type of cell that forms during the early stages of pregnancy.

The muscular organ in females where a fertilized egg implants and a baby develops during pregnancy.

The organ responsible for producing eggs in females.

The structure that connects the ovaries to the uterus.

The site of sperm production in males.

Tubes that transport blood from the heart to the lungs.

Tubes through which eggs travel from the ovaries to the uterus; the typical site of fertilization.

Tubes that connect the kidneys to the bladder.

Tubes that carry sperm from the testes to the penis.

The female reproductive cell responsible for fertilizing the male sperm.

The male reproductive cell, which is responsible for fertilizing the female egg.

A type of hormone produced in the male reproductive system.

A fluid that nourishes and transports sperm.

Chemical messengers that regulate growth and development

Substances that only affect mood

Proteins that build muscle mass

Vitamins that enhance immunity

The release of a mature egg from the ovary, typically occurring around the middle of the menstrual cycle.

The process of fertilization of an egg by sperm.

The shedding of the uterine lining during menstruation.

The development of follicles in the ovaries.

The external male organ that delivers sperm into the female reproductive tract.

A type of fruit that grows on trees.

A muscle used for breathing in mammals.

An organ responsible for filtering blood in the body.

A type of plant cell that undergoes photosynthesis.

The single cell formed when a sperm fertilizes an egg, containing a full set of chromosomes from both parents.

A stage in the development of a multicellular organism after the embryo stage.

A cell that is produced during the process of mitosis.

The upper part of the uterus where the eggs are fertilized.

The lower, narrow part of the uterus that opens into the vagina; it dilates during childbirth to allow the baby to pass through.

The muscular layer of the uterus that contracts during menstruation.

The lining of the uterus that thickens during the menstrual cycle.

Days 1-7: The follicular phase where the follicles mature.

Days 14-16: The ovulation phase where the egg is released.

Days 20-28: After ovulation, the ruptured follicle forms the corpus luteum, which releases progesterone to thicken the uterine lining in preparation for a potential pregnancy.

Days 7-14: The luteal phase where the uterine lining sheds.

An organ that forms in the uterus during pregnancy, providing oxygen, nutrients, and waste removal for the developing baby.

A type of blood cell responsible for transporting oxygen throughout the body.

A hormone produced during pregnancy to maintain the uterine lining.

A structure that connects the mother and fetus but does not provide any nutrients.

The male reproductive organs that produce sperm and testosterone.

The female reproductive organs that produce eggs and hormones like estrogen and progesterone.

The organs responsible for the production of insulin in the pancreas.

The glands that secrete adrenaline in response to stress.

Weeks 1-12 of pregnancy; the most critical period of development when the zygote becomes an embryo and then a fetus, and organs start to form.

Weeks 13-26 of pregnancy; a period of rapid growth and development of the fetus.

Weeks 27-40 of pregnancy; the final stage where the fetus prepares for birth.

The time after birth when the baby begins to adapt to life outside the womb.

The muscular canal in females leading from the external genitals to the uterus; it serves as the birth canal and the site where sperm enters the reproductive system.

A structure in males that produces sperm and hormones.

The outer part of the female reproductive system that includes the labia and clitoris.

A hormone responsible for regulating the menstrual cycle.

The system of organs involved in producing offspring, responsible for creating, storing, and delivering reproductive cells.

A network of tissues that supports the body's immune response.

The collection of organs that filter and remove waste from the body.

The system responsible for the digestion and absorption of nutrients.

Days 1-5: The pituitary gland releases LH, stimulating the development of follicles in the ovaries; one matures into an egg.

Days 6-14: The pituitary gland releases FSH, stimulating the development of follicles in the ovaries; one matures into an egg.

Days 15-28: The pituitary gland releases estrogen, leading to the shedding of the uterine lining.

Days 20-25: The pituitary gland releases progesterone, preparing the body for potential pregnancy.