The basic unit of heredity is the gene, which is made of DNA. DNA carries the biological instructions that govern bodily functions and determine inherited characteristics. Each gene is located by function on a specific position on a chromosome.
At conception each normal human being receives 23 chromosomes from each parent; 22 autosomes and one pair of sex chromosomes.
Each woman contributes an x sex chromosome and each man may contribute either an x or a y chromosome. If a y chromosome is donated, the child will be male, and if an x chromosome is donated by the father, the child will be female. It is the father who determines the sex of the child.
The simplest patterns of genetic transmission are dominant and recessive inheritance.
Birth defects and diseases are generally transmitted through simple dominant, recessive, or sex-linked inheritance or by genome imprinting.
Prenatal development is a genetically directed process that occurs in three stages.
The germinal stage includes the first two weeks of development after conception. It is characterized by rapid cell division, increasing complexity and differentiation, and implantation on the wall of the uterus.
The embryonic stage lasts from 2 to 8 weeks and is characterized by rapid growth and development of major body systems and organs.
The fetal stage is the final stage of gestation from 8 weeks until the birth of the baby. It is characterized by increased detail of body parts and greatly enlarged body size.
¿Cómo se determina el sexo?
Anormalidades genéticas y cromosómicas
Herencia Dominante
Cuando la relación es 3 a 1
Características Dominantes recesivas
Color de ojos oscuros claros
Color de pelo negro rubio
Forma de cabello rizado liso
Estatura alta baja
Tipo de labios gruesos delgados
Enfermedades Acondroplasia normal
Huntington normal
Herencia Recesiva
Herencia Dominante
Cuando la relación es 3 a 1
Características Dominantes recesivas
Color de ojos oscuros claros
Color de pelo negro rubio
Forma de cabello rizado liso
Estatura alta baja
Tipo de labios gruesos delgados
Enfermedades Acondroplasia normal
Huntington normal
Herencia Recesiva
Se manifiestan solamente si un hijo recibe el mismo gen recesivo de cada padre.
Albinismo
Acromatopsia (ceguera para los colores)
Sordomudez congénita
Hemeralopía (ceguera nocturna)
Tay-Sachs (deterioro del sistema nervioso)
Albinismo
Acromatopsia (ceguera para los colores)
Sordomudez congénita
Hemeralopía (ceguera nocturna)
Tay-Sachs (deterioro del sistema nervioso)
Herencia Ligada al Sexo
Generalmente trasmitido por el cromosoma x de la madre, quien es portadora pero no la padece. Si el padre la padece no la trasmite a sus hijos varones. (La Hemofilia-El Daltonismo)
Valoración e intervención prenatal
Ultrasound is a non-invasive technique that uses sound waves programmed into a computer to visualize the baby, the placenta, and small details such as the chambers and valves of the heart. It is the most common and least expensive of fetal assessment tools.
Amniocentesis involves withdrawing some of the amniotic fluid from the mother via a needleThe fluid is then used to view the chromosomes of the baby (from cells that are shed in the fluid) and also to determine the maturity of the baby’s lungs in cases of premature labor that cannot be stopped. Analysis of the amniotic fluid takes a few days, whereas ultrasound gives immediate results.
Ultrasound is a non-invasive technique that uses sound waves programmed into a computer to visualize the baby, the placenta, and small details such as the chambers and valves of the heart. It is the most common and least expensive of fetal assessment tools.
Amniocentesis involves withdrawing some of the amniotic fluid from the mother via a needleThe fluid is then used to view the chromosomes of the baby (from cells that are shed in the fluid) and also to determine the maturity of the baby’s lungs in cases of premature labor that cannot be stopped. Analysis of the amniotic fluid takes a few days, whereas ultrasound gives immediate results.Muestra de vellosidad coriónica
Cuidado prenatal
Crecimiento fisiológico
grow fastest during the first three years
Servicios educativos
Servicios sociales
Conserjería y servicios nutricionales
Prevención de muerte materna e infantil
Prevención de complicaciones del parto
Escenarios y acompañantes en el parto
Parto en hospital
Parto en el hogar
Centro alternativo de parto
El recién nacido
Tamaño y aspecto 7.5 lbs and is approximately 20 inches long
Sistemas corporales independent air breathing people who can regulate their own body temperature, eliminate, suck, cry, move, and attract attention on their own. recognizing the smell, sight, and sound of the mother as distinct from everyone else
Supervivencia y salud
Valoración médica y neurológica
The Apgar Scale physical health
Brazelton interactive capabilities of the baby.
Complicaciones del nacimiento
Low birthweight babies are at risk for illness and death. Socioeconomic status and prenatal environment are two factors that influence low birthweight.
Desarrollo físico temprano
Principios del desarrollo
cephalocaudal and proximodistal principles
Servicios sociales
Conserjería y servicios nutricionales
Prevención de muerte materna e infantil
Prevención de complicaciones del parto
Escenarios y acompañantes en el parto
Parto en hospital
Parto en el hogar
Centro alternativo de parto
El recién nacido
Tamaño y aspecto 7.5 lbs and is approximately 20 inches long
Sistemas corporales independent air breathing people who can regulate their own body temperature, eliminate, suck, cry, move, and attract attention on their own. recognizing the smell, sight, and sound of the mother as distinct from everyone else
Supervivencia y salud
Valoración médica y neurológica
The Apgar Scale physical health
Brazelton interactive capabilities of the baby.
Complicaciones del nacimiento
Low birthweight babies are at risk for illness and death. Socioeconomic status and prenatal environment are two factors that influence low birthweight.
Desarrollo físico temprano
Principios del desarrollo
cephalocaudal and proximodistal principles
Crecimiento fisiológico
grow fastest during the first three years
Necesidades de nutrición y sueño
Complicaciones del Parto
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