Human Reproduction Test - 85

Perineal gland are found in rabbit but not in human beings. These are a pair of dark elongated scent glands lying behind the cowper's glands. These are sex attractant secreting glands, its smell serves as sex attractant for the female.

Infundibulum is funnel shaped end of fallopian tube or oviduct. The funnel is called oviducal funnel or fallopian funnel. Its free end bears a number of finger like processes called fimbriae, but Graafian follicle of ovary is with secondary oocyte hanging in cavity, called antrum.

The menstrual cycle is the cycle of natural changes that occurs in the uterus and ovary as an essential part of making sexual reproduction possible. The length of it is an average of 28 days. So, blank 1 is 28 days.
Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction, It leads to the beginning of menstrual cycles in women. So, blank 2 is the menstrual cycle.
Menarche is the first menstrual cycle in females. So, blank 3 is menarche.
This cycle begins generally at the age of 12-13 and ends at the age of 45-55. So, option 4 is 45-50.
Menopause marks the end of menstrual cycle. So, blank 5 is menopause.
At around mid-cycle, when the egg is mature, it gets released from the ovary, pushed down to fallopian tube and is available to be fertilized in the process called ovulation. This occurs around 13th-14th day. So, blank 6 is 13$$^{th}$$ or 14$$^{th}$$ day and blank 7 is ovulation.
Progesterone is an endogenous steroid hormone and is secreted in the ovaries by the corpus luteum. So, blank 8 is progesterone.
After being released from the ovary, the egg is swept into the fallopian tube by the fimbria, which is a fringe of tissue at the end of each fallopian tube. So, blank 9 is fallopian tube
Thus, the correct answer is option (A), '(1) 28 days, (2) puberty, (3) menarche, (4) 45-50 years, (5) menopause, (6) 13th or 14th days, (7) ovulation, (8) progesterone, (9) fallopian tube'.

Sperm is produced in the testes and enters the ejaculatory ducts via the vas deferens, it then enters into urethra to seminal vesicle. As it passes by the seminal vesicle, a fluid-rich in fructose combines with sperm. This addition nourishes the sperm in order to keep it active and motile.
Thus, the correct answer is option (B).

• The seminal vesicles are a pair of simple tubular glands that secrete seminal plasma, mixed with sperm that ultimately becomes semen. 
• The Corpus spongiosum is a mass of spongy tissue that surrounds the male urethra within the penis. 
• Condoms are most often made from latex sheaths. 
• Trichomoniasis is a sexually transmitted disease caused by a protozoan. 

Presumptive areas are evident in blastula. In gastrula germ layers are formed. In post gastrula organogenesis starts.

Rods and cones are the secondary photoreceptors that are stimulated by light energy. Haemoglobin is the pigment of RBCs that serves as a carrier of oxygen and imparts the red colour to blood. Sertoli cells serve to support, nourish and regulate the development of cells undergoing spermatogenesis. Thus, the correct answer is option C.

• There are two ovaries present in any female which produce one egg per month i.e. either of the ovaries produce one egg per month. 
  
• In one year i.e. 12 months, any normal woman will produce 12 eggs.
• Production and release of mature eggs cease during pregnancy that is why it is important to note that the above-mentioned calculations are for nonpregnant women.

So, the correct option is '12'.

Uterus masculinius is structure a bilobed sac like located in the urinogenital system of certain vertebrates. It originates from the lower part of the mullerian duct of mammals and lies behind the urinary bladder. It fills the prostrate gland with its secretion during sexual activity. It opens at prostatic portion of urethra. So, the correct answer is option B.

A thin, fibrous layer, called the tunica albuginea, encapsulates the ovary. Size of normal ovary is about 4 cm x 3 cm x 2 cm. As the pregnancy advances, the next structure to become visible to ultrasound is the yolk sac. This is a round, sonolucent structure with a bright rim. The yolk sac first appears during the fifth week of pregnancy and grows to be no larger than 6 mm. Yolk sacs larger than 6 mm are usually indicative of an abnormal pregnancy. So, ovary is large due to presence of yolk.