Why is it so problematic if nondisjunction occurs during meiosis? What is the difference between chromosomes and chromatids? Describe when and how blood is formed in the embryo, fetus, childhood, and adulthood. What is the difference between chromosomes and chromatin?
If you have ever been concerned about your penis size, you're not alone. The size of the male sex organ has long been thought to be an indicator of a person's testosterone levels and sexual abilities. But this is a myth. Many people wish their penises were larger when in reality they...
This chapter explores the role of gut microbiota, advocating for its recognition as an “organ.” It highlights gut microbiota's significant functions in human health, such as immune regulation, organ development, and neurotransmitter production. The...
Fabry disease is a rare inherited condition characterized by the toxic accumulation of a fatty substance called globotriaosylceramide (Gb3) in the body’s cells. This buildup impairs organ function, especially in the kidneys and heart. The disease is also known as Anderson-Fabry disease, after...
A REPLY TO FATHER AUSTRIACO • David L. Schindler • "Austriaco defines being not by what it is, but by what is its first (ontological) effect." Father Nicanor Austriaco concludes his article, "Are Teratomas Embryos or Non-Embryos? A Criterion for Oocyte-Assisted Reprogramming,"1 with a...
days old. At this stage, an embryo is called a blastocyst and has about 150 cells. These are pluripotent stem cells, meaning they can divide into more stem cells or can become any type of cell in the body. This versatility allows embryonic stem cells to be used to regenerate or repair ...
The endometrium is the innermost layer of the uterus, the most important reproductive organ where gestation takes place for 9 months. In order to better understand the function of the endometrium, in this section we describe the 3 uterine layers that exist: Outer or perimetrial layer is a sero...
A number of factors influencebraindevelopment, both in utero and over the course of a lifetime, because the brain is never fully developed. In fact, this unique organ is constantly growing and changing in response to experience, and at any given time, things can both enhance and hinder brain...
are relatively common in pregnancy and important to treat. The thyroid is an organ located in the front of your neck that releases hormones that regulate your metabolism (the way your body uses energy), heart and nervous system, weight, body temperature, and many other processes in the body....
But hospitalization is common if someone has a high fever, intense headache, fatigue, and chills, as with Fauci. If other neurological symptoms persist, hospitalization may be required to receive IV fluids or ventilation. In the most severe cases, people with West Nile virus can develop encepha...