Tag: human physiology

Quizzes (44) Questions (49)

Questions Related to human physiology

Multiple choice female reproductive structure reproductive system of human hormones, homeostasis, and reproduction human physiology biology

Bartholin's glands are situated

  1. On the side of head of some amphibians

  2. At the reduced tail end of birds

  3. On either side of vagina in humans

  4. On either side of vas deferens in humans
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bartholin's glands are a part of the female reproductive tract. These are present on either side of the vagina are small in size. These glands secrete mucus to keep the vagina lubricated. These glands are analogous to the bulbourethral glands of the males. So, the correct option is 'On either side of the vagina in humans'.

Multiple choice female reproductive structure reproductive system of human hormones, homeostasis, and reproduction human physiology biology

Which of the following is the correct order so as to be in a logical sequence?

  1. Implantation, Ovulation, Child birth, Gestation, Fertilisation.

  2. Coitus, Ovum, Sperm, Sperm duct, Urethra, Vagina.

  3. Sperm duct, Penis, Testes, Sperms, Semen.

  4. Puberty, Menopause, Menstruals, Menarche, Reproductive age.

  5. Graafian Follicle, Ovum, Fallopian Tube, Uterus.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

A. The release of ovum occurs first, followed by fertilization, implantation in the uterus, gestation in which the foetus develops and then childbirth. So, the correct order is Ovulation, Fertilization, Implantation, Gestation, Childbirth

B. The sperm has to move to the sperm duct and through the act of coitus, it will de be inseminated in the vagina. So, the correct sequence is Sperm, Sperm duct, Urethra, Coitus, Vagina, Ovum.
C. Sperms are made in the testes and move to sperm duct where the secretion of glands combine with sperm to make semen. So, the correct sequence is Testes, Sperms, Sperm duct, Semen, Penis.
D. These are the reproductive stages in human female life-cycle. So, the correct sequence is Puberty, Reproductive age, Menarche,  Menstrual, Menopause.
E. These are the phases in the release of the ovum from the ovaries. So, the correct sequence is Graafian Follicle, Ovum, Fallopian Tube, Uterus.

Multiple choice female reproductive structure reproductive system of human hormones, homeostasis, and reproduction human physiology biology

The process of formation of ova is called

  1. Ovulation

  2. Oviparous

  3. Oogenesis

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Oogonia develops into the primary oocytes. In meiosis I the primary oocyte forms a polar body and a secondary oocyte. After meiosis I, the haploid secondary oocyte initiates meiosis II. When meiosis II is completed, an ootid and another polar body is created. Polar bodies degenerate at the end of meiosis II, leaving only the ootid that develops into a mature ovum. Thus the correct answer is option C.
Multiple choice female reproductive structure reproductive system of human hormones, homeostasis, and reproduction human physiology biology

Estrogen is secreted by

  1. Liver

  2. Spleen

  3. Ovaries

  4. Pituitary
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Estrogen is secreted by follicles on the ovaries and is also secreted by the corpus luteum after the egg has been released from the follicle and from the placenta.
  •  Follicle-stimulating hormone (FSH) stimulates the ovarian production of estrogens by the granulosa cells of the ovarian follicles and corpora lutea.
  • Hence estrogen is secreted by Ovaries.
  • So, the correct answer is 'Ovaries'.
Multiple choice female reproductive structure reproductive system of human hormones, homeostasis, and reproduction human physiology biology

Before the formation of corpus luteum, the body formed is

  1. Corpus albicans

  2. Corpus media

  3. Corpus haemorrhagicum

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In a typical menstruation cycle, both LH and FSH attain a peak level in the middle of cycle (about 14th day). Rapid secretion of LH leading to its maximum level during the mid-cycle called LH surge, induces rupture of Graafian follicle and thereby the release of ovum (ovulation). The ovulation (ovulatory phase) is followed by the luteal phase during, which the remaining parts of the Graafian follicle transform as the corpus luteum. The corpus hemorrhagicum ("bloody body") is a temporary structure formed immediately after ovulation from the ovarian follicle. After the trauma heals, the subsequent structure is called as the corpus luteum (which in turn becomes the corpus albicans before degenerating). The corpus luteum assumes endocrine function and secretes large amounts of progesterone hormone which is essential for maintenance of the endometrium. Such an endometrium is necessary for implantation of the fertilised ovum and other events of pregnancy.

Multiple choice female reproductive structure reproductive system of human hormones, homeostasis, and reproduction human physiology biology

As compared to the sperm the egg contains more 

  1. Chromosomes

  2. Centrioles

  3. Cytoplasm

  4. Mitochondria
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In most of the higher plants and animals including humans, the male gamete is small and motile, whereas, female gamete is large and immotile. The female gamete contributes both the genetic material as well as cytoplasm during zygote formation as compared to this the male gamete does not contribute cytoplasm but provides only half the genetic complement. Hence, major cell organelles like mitochondria and chloroplasts show cytoplasmic or maternal inheritance pattern. Thus, the correct answer is option C.

Multiple choice female reproductive structure reproductive system of human hormones, homeostasis, and reproduction human physiology biology

Release of egg from ovary is called

  1. Ovipary

  2. Ovulation

  3. Hatching

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The release of an egg from the ovary is called ovulation. This process occurs in the ovulatory phase of the menstrual cycle when the secondary oocytes forms Graafian follicle which then ruptures to release the ovum. The ovulation in human females occurs under the influence of luteinizing hormone LH.