Answer :
Why are adolescent girls more exposed to iron deficiency anemia?
Adolescent girls are more exposed to iron deficiency anemia primarily because of the onset of menstruation. During menstruation, girls lose blood which results in the loss of iron. This stage of development also demands higher iron for growth, which combined with dietary factors, can increase the risk of iron deficiency anemia.Which gland secretes a gonadotropin hormone that causes the pituitary gland to release follicle stimulating hormone (FSH) & luteinizing hormone (LH)?
The hypothalamus secretes Gonadotropin-releasing hormone (GnRH), which stimulates the pituitary gland to release FSH and LH.What are secondary sexual characteristics in males & females?
- In males: Development of facial and body hair, deepening of the voice, and increased muscle mass.
- In females: Development of breasts, widening of hips, and onset of menstruation.
What is the male reproductive cell?
The male reproductive cell is called a sperm.What does the midpiece of the sperm contain?
The midpiece of the sperm contains mitochondria, which provide energy for the sperm's journey to the egg.Where does fertilization occur in humans?
Fertilization typically occurs in the fallopian tube (oviduct).Define and distinguish among the terms ovary, oviduct, uterus, cervix, teste, vas deferens & urethra.
- Ovary: Produces eggs and hormones like estrogen and progesterone.
- Oviduct (Fallopian tube): Transports eggs from the ovary to the uterus.
- Uterus: Houses and nourishes the fertilized egg.
- Cervix: Connects the uterus to the vagina and opens during childbirth.
- Testes: Produce sperm and testosterone.
- Vas deferens: Transports sperm from the testes to the urethra.
- Urethra: In males, conveys urine and sperm out of the body; in females, conveys urine only.
What is the function of the epididymis?
The epididymis is responsible for storing and maturing sperm cells.Where is the fertilized egg implanted?
The fertilized egg implants itself into the wall of the uterus.What is the function of the cervix during pregnancy?
The cervix keeps the uterus sealed with a mucus plug to prevent infection during pregnancy and opens during childbirth.How long does the menstrual cycle typically last?
The menstrual cycle typically lasts about 28 days, though it can vary from person to person.What happens during ovulation?
During ovulation, an egg is released from the ovary and is available for fertilization.What is the role of LH & FSH in males and females?
- In males: FSH stimulates sperm production, and LH stimulates testosterone production.
- In females: FSH stimulates follicle growth in the ovaries, and LH triggers ovulation.
What does the corpus luteum do?
After ovulation, the corpus luteum forms from the empty follicle and produces progesterone to maintain the uterine lining.Where does spermatogenesis occur?
Spermatogenesis occurs in the seminiferous tubules of the testes.Which hormone maintains pregnancy?
Progesterone helps maintain pregnancy by sustaining the uterine lining.Which organ is responsible for the exchange of nutrients between mother and fetus?
The placenta is responsible for exchanging nutrients and waste between the mother and fetus.How does hormonal birth control prevent pregnancy?
Hormonal birth control prevents ovulation, thickens cervical mucus, and thins the uterine lining to prevent pregnancy.Which part of the sperm penetrates the egg during fertilization?
The head of the sperm penetrates the egg during fertilization.What is the function of the amniotic fluid?
Amniotic fluid cushions and protects the developing fetus in the womb.What are the three accessory glands & what fluids do they release?
- Seminal vesicles: Release fructose-rich fluid that nourishes sperm.
- Prostate gland: Releases a fluid that protects and enriches sperm.
- Bulbourethral glands: Secrete a pre-ejaculatory fluid that neutralizes acidity in the urethra.
What is the lifespan of sperm inside the female reproductive system?
Sperm can live up to 5 days inside the female reproductive system under optimal conditions.What is the function of the umbilical cord?
The umbilical cord connects the fetus to the placenta, allowing nutrient and waste exchange.What happens if fertilization does not occur?
If fertilization does not occur, the uterine lining sheds during menstruation.Which part of the sperm contains enzymes to break the egg's membrane?
The acrosome, located at the tip of the sperm head, contains enzymes to penetrate the egg's membrane.
