Reproductive System Samantha Mauricio Pd2 (Formation of Gametes (Metaphase…
Reproductive System Samantha Mauricio Pd2
Hormones in the Reproductive System
F: controls the growth and maintenance of endometrium of the uterus
D: the male reproductive hormone that is produced mainly in the testes
F: controls the formation and maintenance of secondary female sex characteristics
Disorders (include STDs and STIs)
D: An inflammation of the liver.
HIV/ AIDS and STDS
D: HIV causes AIDS and interferes with the body's ability to fight infections.
D: A sexually transmitted infection caused by a parasite.
D: A sexually transmitted bacterial infection that, if untreated, may cause infertility.
D: A bacterial infection usually spread by sexual contact that starts as a painless sore.
D: Cancer in the ovaries
Pelvic Inflammatory Disease (PID)
D: An infection of the female reproductive organs.
Events of the Female Hormonal Cycle (3)
Proliferative phase (Days 6-14)
Endometrium proliferates (increase in glands and blood vessels) in response to increasing levels of estrogen (from developing follicles)
Secretory phase (Days 15-28)
D: Progesterone stimulated by LH is the dominant hormone during this phase to prepare the corpus luteum and the endometrium for possible fertilized ovum implantation
Menstrual phase (Days 1-5)
D: Menstruation due to shedding of stratum functionalis
occurs because estrogen + progesterone levels are low
Anatomy of all major female and male reproductive structures
D: sperm leaves the is tube (ejaculation of semen; sperm and other fluids) and urine leaves this tube
D: produces protective fluid to help sperm move
D: makes the sugary fluid for sperm to nourish it
D: a sack like pouch that holds the testes that regulates temperature for sperm
D: the male sex gland; produces sperm (male reproductive cell, 23 chromosomes) and produces male hormone (testosterone)
D: responsible for directing and propelling sperm into the urethra after the sperm has passed through the epididymis
D:where males urinate and where semen is released
D:the outer folds of skin that cover the vagina
D: where fertilization takes place and the passage way for ova to ovaries
D: the birth canal and where the menstrual flow leaves the body
D:the sex glands; releases ova and produces female hormones (estrogen and progesterone)
D: the bottom of the uterus and opens during child birth approximately ten centimeters (four inches)
D: the organ that supports and nourishes a developing baby
Formation of Gametes
The duplicated chromosomes move to the centre of the cell. Each centromere attaches to two spindle fibres instead of one.
The duplicated chromosomes and spindle fibers reappear in each new cell.
The centromere divides. The chromatids seperate and move to opposite ends of the cell. Each chromatid is now an individual chromosome.
The spindle fibres disappear, and a nuclear membrane forms around each set of chromosomes.
The cytoplasm divides and two new cells form. Each new cell has one duplicated chromosome from each similar pair.
Homologous chromosomes are pulled to opposite ends of the cell. Note that chromatids do not separate - each duplicated chromosome still has two chromatids.
The pairs of homologous chromosomes line up in the center of the cell. The centromere of each chromatid pair attaches to one spindle fibre
Each chromosome comes near its replicated chromosome pair. Nucleus dissolves at this stage. Crossing Over (exchange of genetic material) occurs at this phase.
Secretion of hormones
Production, nurturing and transporting of ova and sperm
Create an offspring