Oogenesis / Ovulation / Ovarian cycle- Definition, Phages, Process

Oogenesis or Ovulation or Ovarian cycle

Oogenesis Definition Oogenesis is the female version of gametogenesis. It is the process of formation of female gamete or ovum, necessary for sexual reproduction. The process of oogenesis starts pre-natally, i.e. before the birth of the female child. It begins about 8-20 weeks after the fetus has begun to grow and goes on until the birth of the child. Thus, …

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Spermatogenesis- Definition, Stages and Process with figure

Spermatogenesis

Spermatogenesis Spermatogenesis is the process of formation of mature sperm cells through a series of mitotic and meiotic divisions along with metamorphic changes in the immature sperm cell. It is the male version of gametogenesis which results in the formation of mature male gametes. In mammals, this takes place in the seminiferous tubules of the male reproductive system. Spermatogenesis requires …

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18 Differences Between Spermatogenesis and Oogenesis

Differences between Spermatogenesis and Oogenesis

Spermatogenesis Definition Spermatogenesis is the process of formation of mature sperm cells through a series of mitotic and meiotic divisions along with metamorphic changes in the immature sperm cell. It is the male version of gametogenesis which results in the formation of mature male gametes. Spermatogenesis requires optimal conditions to occur and is essential for sexual reproduction. The complete process …

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15 differences between Inhalation and Exhalation (Inhalation vs Exhalation)

Differences between Inhalation and Exhalation (Inhalation vs Exhalation)

Inhalation Definition Inhalation or Inspiration is a part of breathing where the air is taken into the lungs by creating negative pressure by the contraction of respiratory muscles and diaphragm. Inhalation is a vital physical process and is autonomous that occurs without concise or control. However, breathing as a process can be controlled or interrupted to certain limits. Inhalation is …

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15 differences between Breathing and Respiration

Differences between Breathing and Respiration (Breathing vs Respiration)

Breathing Definition Breathing is a biophysical process that involves the exchange of gases through inhalation and exhalation. Breathing is also called ‘external respiration’ as it is an external process of taking oxygen in and throwing carbon dioxide out via respiratory organs. The process of breathing in all vertebrates consists of highly branches network of tubes that connect the nose and …

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Integumentary System- definition, organs, functions, diseases

Integumentary System

Figure: The Integumentary System. Image Source: Wikipedia, InformedHealth.org and Encyclopædia Britannica, Inc. Integumentary System definition The integumentary system is a system comprised of organs that are the outermost protective covering of the animal body, the skin, and its various derivatives. The integumentary system protects against many threats such as infection, desiccation, abrasion, chemical assault, and radiation damage. In humans, the primary …

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Week by week pregnancy (Baby & body development with tips)

Week-wise timeline of pregnancy (Week 1 to Week 40)

Disclaimer: The information presented on the website is for academic, study, and general information purposes only. The information and tips presented on the website must not be used for the purpose of medical advice or diagnosis or treatment. If you are not feeling well, please consult with your physician or doctor or qualified health care providers. Pregnancy is a period …

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Menstrual Cycle- definition, hormones, phases, diagram

Menstrual Cycle

Menstrual Cycle Definition The menstrual cycle is the process of discharge of blood and other things from the vagina of a woman every month from puberty to menopause excluding pregnancy. It is a natural periodical process that brings changes in the female reproductive system which is responsible for the pregnancy. It includes changes that occur in the ovary and the …

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Implantation- Process, Events, Significance

Implantation- Process, Events, Significance The term “implantation” is used to describe the process of attachment and invasion of the uterus endometrium by the blastocyst (conceptus) in placental animals. It begins at the end of the first week and is completed by the end of the second week of gestation. Implantation occurs in the endometrium of the uterus superior in the …

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Stages of Childbirth

Stages of Childbirth

Stages of Childbirth Labor is a physiologic process during which the fetus, its associated membranes, the umbilical cord, and the placenta are expelled from the uterus. During most of the months of pregnancy, the uterus undergoes periodic episodes of weak and slow rhythmical contractions called Braxton Hicks contractions. Contractions become progressively stronger toward the end of pregnancy; that start stretching …

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