63 results found

Search Results for: fetus

Fetus

Definition noun, plural: fetuses The yet-to-be born mammalian offspring following the embryonic stage, and is still going... Read More

Zygote

Zygote Definition What is a zygote? A zygote is a fertilized eukaryotic cell. In biology, medical science, and other allied... Read More

Amnion

Definition noun, plural: amnions The innermost membrane of the extraembryonic or the fetal membranes of amniotes surrounding... Read More

Erythroblastosis fetalis

Definition noun A medical condition in the fetus or newborn in which many erythroblasts are released in fetal blood from the... Read More

Viability

Whether we talk about “a travel plan” or “a science experiment” or “the chances of a pregnancy reaching its... Read More

Placentalia

Definition noun (taxonomy) A subdivision of the class Mammalia characterized primarily by their fetus being carried in the... Read More

Fetal membrane

Definition noun, plural: fetal membranes A membrane surrounding the embryo or fetus and is involved in nutrition,... Read More

Teratogenesis

Definition noun The development of structural or functional malformations in an embryo or a fetus Supplement Abnormalities... Read More

Chorion

Definition noun, plural: chorions (embryology) An extraembryonic membrane surrounding the embryo or the fetus of... Read More

Amniotic fluid

Definition noun The protective fluid surrounding the developing fetus within the amniotic sac of a pregnant... Read More

Embryo

Definition noun, plural: embryos (zoology) A multicellular organism that primarily undergoes extensive and rapid growth and... Read More

Lanugo

Definition noun, plural: lanugos Thin, soft, and poorly pigmented hair, and is the first to be produced by the hair... Read More

Sexual reproduction

Sexual reproduction is a mode of reproduction involving the fusion of haploid female gamete (egg cell) and haploid male... Read More

Imprinting

What does imprinting mean? Have you watched the TV cartoon show “Tom and Jerry” with an episode of a duck and its... Read More

Anamniote

Definition noun, plural: anamniotes Any of the vertebrates that do not belong to the Amniota, and in which an amnion does... Read More

Viable

Viable definition In biology, the word viable pertains to a life form, such as a cell, that is alive or capable of... Read More

Human

Human Definition A human is a bipedal hominin characterized by having a higher and vertical forehead compared with earlier... Read More

Placenta

Definition noun, plural: placentae or placentas (1) (zoology) The vascular organ formed during gestation of female mammals... Read More

Amniote

Definition noun, plural: amniotes Any of the tetrapod vertebrates belonging to Amniota in which an amnion is formed during... Read More

Amniotic sac

Definition noun, plural: amniotic sacs Fluid-filled sac where the embryo or fetus is suspended in the uterus or in the of... Read More

Chimera

When we learned about the basic genetics of biological life, we came to know that almost all the cells of an individual have... Read More

Internal os

Definition noun The part of the cervical canal, forming an internal narrowing of the uterine cavity Supplement The cervix... Read More

Naturally acquired passive immunity

Definition noun A passive immunity that is acquired by the fetus or newborn through its mother, and typically lasts the... Read More

Positive feedback

Positive Feedback Definition Each mechanism of the body like temperature, blood pressure, and levels of specific nutrients... Read More

Vellus hair

Definition noun Very fine, non-pigmented hair that covers most of the body of human and other mammals Supplement The vellus... Read More

Oligohydramnios

Definition noun A condition characterized by a deficiency of amniotic fluid Supplement The amniotic fluid is the fluid that... Read More

Hermaphrodite

We all know that typically living organisms are divided into two main categories of sex-based on their biological structure.... Read More

Human Reproduction

Terminology and Concepts Primary reproductive organs are called gonads - testes in the male and ovaries in the female.... Read More

Chromosome

Chromosomes Definition Chromosomes are the thread-like structure present in the nucleus of plant and animal cells.... Read More

Natural passive immunity

Definition noun A passive immunity acquired by the fetus or newborn from the mother via the placental transfer of antibodies... Read More

Primary oocyte

Definition noun, plural: primary oocytes The oocyte that arises from the oogonium via the process of oocytogenesis, and... Read More

Bud stage

Definition noun (dentistry) The first stage in a developing tooth where a tooth bud forms from the dental... Read More

Developmental Biology

Developmental biology is a biological science that is primarily concerned with how a living thing grows and attains... Read More

Sex determination

Definition noun (1) (embryology) The developmental process in which the sex of a bipotential embryo is fixed or determined... Read More

Y linkage

Definition noun, plural: Y linkages (genetics) A form of sex linkage involving particularly the Y chromosome Supplement Sex... Read More

External os

Definition noun A small, somewhat circular aperture on the extremity of the extocervix Supplement At the lower part of the... Read More

Polysomy

Definition noun, plural: tetrasomies (genetics) A type of aneuploidy characterized by the gain of two extra chromosomes of... Read More

Eutherian mammal

Definition noun, plural: eutherian mammals Any from the group of mammals possessing chorioallantoic placenta (as opposed... Read More

Tetrasomy

Definition noun, plural: tetrasomies (genetics) A type of aneuploidy characterized by the gain of two extra chromosomes of... Read More

Feedback mechanism

Feedback Mechanism Definition What is a feedback mechanism? A feedback mechanism is a physiological regulation system in a... Read More