What is the average temperature required for spermatogenesis to occur in the testes?

Approximately 2-2.5°C cooler than the body's internal temperature.

True or False: The primary oocyte remains arrested in prophase I until puberty.

True.

Which hormone triggers the release of the ovum during ovulation?

Luteinizing hormone (LH).

Fill in the blanks: The ______ is the outer layer of the blastocyst that facilitates implantation into the endometrium.

Trophoblast

Riddle: I help in the fusion of sperm and egg, but my entrance is tightly guarded. What am I?

Zona pellucida

What is the primary function of Sertoli cells in the male reproductive system?

To provide essential nutrients and support to germ cells during spermatogenesis.

True or False: The ejaculatory duct is formed by the fusion of the vas deferens and the urethra.

False. The ejaculatory duct is formed by the fusion of the vas deferens and a duct from the seminal vesicle.

Which gland produces androgens in the male reproductive system?

Leydig cells.

Fill in the blanks: The ______ is a structure in the female reproductive system where fertilization typically occurs.

Oviduct (fallopian tube)

MCQ: What is the role of the placenta during pregnancy? A) Provides oxygen and nutrients B) Produces sperm C) Releases hormones D) All of the above

A) Provides oxygen and nutrients

What are the three germ layers formed during early embryonic development?

Ectoderm, mesoderm, and endoderm.

True or False: The acrosome of the sperm contains nutrients for the ovum.

False. The acrosome contains enzymes that aid in fertilization.

What is the term for the process of sperm maturation that occurs in the epididymis?

Spermiogenesis.

Fill in the blanks: The ______ phase of the menstrual cycle involves the shedding of the uterine lining.

Menstrual

Riddle: I am a process where a fertilized egg attaches and grows, but if I fail, I signal a new cycle. What am I?

Implantation

What is the significance of the first meiotic division in oogenesis?

It produces a haploid secondary oocyte and a tiny first polar body.

True or False: The uterine lining is maintained during pregnancy due to the secretion of estrogen and progesterone.

True.

What structure forms from the remnants of the Graafian follicle after ovulation?

Corpus luteum.

Fill in the blanks: The ______ is the muscular layer of the uterus that contracts during childbirth.

Myometrium

MCQ: Which hormone is responsible for the maintenance of the endometrium during pregnancy? A) Estrogen B) Progesterone C) Testosterone D) Follicle-stimulating hormone

B) Progesterone

What is the result of the fusion of the haploid nuclei from the sperm and ovum?

Formation of a diploid zygote.

True or False: The first movements of the fetus are typically noticed during the third month of pregnancy.

False. The first movements are typically noticed during the fifth month.

What is the primary function of the bulbourethral glands in the male reproductive system?

To lubricate the penis and contribute to seminal fluid.

MCQ: Which of the following hormones is produced by the placenta? A) Luteinizing hormone B) Follicle-stimulating hormone C) Human chorionic gonadotropin D) Estrogen

C) Human chorionic gonadotropin

What initiates the process of parturition?

A complex neuroendocrine mechanism involving signals from the fetus and placenta.

True or False: The oviduct has a role in both the transportation of the ovum and the site of fertilization.

True.

What is the role of fimbriae in the female reproductive system?

To collect the ovum after ovulation.

True or False: The morula is an early stage of embryonic development consisting of 2 to 4 cells.

False. The morula consists of 8 to 16 blastomeres.

MCQ: Which part of the sperm provides energy for motility? A) Head B) Middle Piece C) Tail D) Acrosome

B) Middle Piece

Fill in the blanks: The ______ connects the placenta to the developing embryo, facilitating substance transport.

Umbilical cord

What is the function of the chorionic villi during pregnancy?

To facilitate the exchange of substances between the mother and the embryo.

True or False: During the luteal phase, the corpus luteum degenerates if fertilization occurs.

False. The corpus luteum produces hormones and is maintained if fertilization occurs.

Riddle: I am the structure that develops into the fetus, but I start as a single fertilized egg. What am I?

Zygote

What hormonal change occurs during the early stages of pregnancy to support fetal growth?

Increase in levels of hormones like cortisol, prolactin, and thyroxine.

Which hormone stimulates Leydig cells to produce androgens during spermatogenesis?

Luteinizing hormone (LH)

Fill in the blank: The process of sperm maturation and storage occurs in the ______.

Epididymis

True or False: The secondary oocyte completes its second meiotic division before ovulation.

False. The secondary oocyte completes its second meiotic division only after fertilization.

Which accessory gland in the male reproductive system contributes to the formation of seminal plasma?

Seminal vesicles

True or False: The placenta is primarily responsible for the production of red blood cells in the fetus.

False. The placenta is responsible for nutrient exchange but does not produce red blood cells; this occurs in the fetal liver.