"Ectolecithal" Pronounce,Meaning And Examples
"Ectolecithal" Natural Recordings by Native Speakers
"Ectolecithal" Meaning
Ectolecithal refers to the reproductive system of an animal in which the yolk of the egg is external to the blastoderm. This type of development is typically seen in insects, where the yolk is surrounded by a protective layer of fluid and the blastoderm, or embryo, develops outside of the yolk sac.
"Ectolecithal" Examples
Etymology and Definition:
Ectolecithal refers to the type of egg membrane structure found in some invertebrates, particularly mollusks, where the yolk sac is partially enclosed within a membrane or capsule.5 Usage Examples:
The ectolecithal eggs of some marine snails have a unique spiral structure that enhances their buoyancy.
In contrast, the yolks of birds are surrounded by a more direct investment in yolk sac membrane.
The ectolecithal development of these clam species allows them to thrive in environments with limited nutrients.
Researchers have observed that the ectolecithal eggs of certain cephalopods exhibit a remarkable ability to change color.
In some species of marine worms, the ectolecithal yolk sac serves as a storage organ for essential nutrients during larval development.
"Ectolecithal" Similar Words
Ectoderm
The ectoderm is the outermost of the three primary germ layers in the embryo of animals that have a backbones, such as humans. It gives rise to the skin, hair, nails, and nervous system. The ectoderm also develops into the adrenal glands, the pituitary gland, and the eye.
Ectodermal
Ectodermal refers to the outermost layer of tissue that covers the surface of the body or forms the linings of vessels, glands, or other structures. In embryology, it is one of the three primary layers of tissue that give rise to the development of an organism, along with mesoderm and endoderm.
Ectodermic
Ectodermic refers to something that develops from the ectoderm, one of the three primary layers of tissue found in the embryo of most animals. The ectoderm gives rise to the skin and its appendages, such as hair, nails, and teeth, as well as the nervous system and eyes. It is a biological term used in the field of embryology and developmental biology.
Ectogenesis
Ectogenesis refers to the process of developing an embryo or fetus outside of the maternal body, typically in a controlled laboratory or medical setting. This can involve techniques such as in vitro fertilization (IVF) and embryonic stem cell research.
Ectogenetic
Ectogenetic refers to the concept of developing an embryo or fetus indirectly, rather than through natural sexual reproduction, outside of the human body.
Ectogenous
Ectogenous refers to something that originates or develops outside of its usual or expected location or source. It is often used in scientific contexts to describe biological phenomena, such as ectogenous tumors, which are tumors that grow outside of their normal location or organ of origin.
Ectognatha
Ectognatha is a taxonomic subgroup of hexapods, including insects and related groups. It comprises the true insects, such as beetles, flies, bees, and butterflies, as well as related orders like mayflies, dragonflies, and damselflies. Ectognatha is characterized by the presence ofwalking legs, compound eyes, and a three-part body.
Ectognathous
Ectognathous refers to a type of jaw structure in insects and other arthropods, characterized by an external mandible that articulates with the head. In other words, the lower jaw or mandible is external and visible from the outside, rather than being internal or fused with the head. This type of jaw structure is seen in some insects, such as ants and beetles, as well as in other arthropods like crustaceans and arachnids. The term "ectognathous" is often used in scientific and technical contexts to describe the morphology and anatomy of these animals.
Ectomere
Ectomere refers to the outermost layer of cells in a developing embryo, which later forms the epithelial cells of the skin and other external surfaces.
Ectomesenchymal
Ectomesenchyme
Ectomesenchyme refers to a type of embryonic tissue that gives rise to mesenchymal cells, which are undifferentiated cells that can develop into various connective tissue cell types, such as cartilage, bone, and fat cells. The ectomesenchyme also plays a crucial role in the development of the skin and other connective tissues.
Ectomorph
Ectomorph is a term used in bodybuilding and body typing to describe a person with a thin, gaunt, and wiry body build. It is characterized by a lack of body fat and a tendency to be underweight. People with an ectomorphic body type often have a high metabolism and may struggle to put on weight or muscle mass. The term is derived from the Greek words "ecto" meaning outside and "morphe" meaning form.
Ectomorphic
Ectomorphs
Ectomorphy
Ectomorphy refers to a body type characterized by a slender, tall, and lean physique with little body fat. People with ectomorph bodies often have a lower body mass index (BMI) and may have difficulty gaining weight. This body type is often associated with athletes who are naturally lean and lanky, such as gymnasts, distance runners, and ballet dancers.
Ectomy