PMS: pre Menstrual syndrome
... • Females have two X chromosomes; males have one X and one Y • Hence, all eggs have an X chromosome; half the sperm have an X, and the other half a Y • A single gene on the Y chromosome, the ...
... • Females have two X chromosomes; males have one X and one Y • Hence, all eggs have an X chromosome; half the sperm have an X, and the other half a Y • A single gene on the Y chromosome, the ...
ECE/PSY171 Chapter 3 Prenatal Development What is the course of
... problems, including high infant mortality, low birth weight, and developmental and behavioral problems. Marijuana—Marijuana use by pregnant women is related to deficits in memory and information processing in their offspring. Heroin—It is well documented that infants whose mothers are addicted to he ...
... problems, including high infant mortality, low birth weight, and developmental and behavioral problems. Marijuana—Marijuana use by pregnant women is related to deficits in memory and information processing in their offspring. Heroin—It is well documented that infants whose mothers are addicted to he ...
Embryonic and Fetal Development
... separate circulatory systems. However, the mother's blood vessels release pools of blood very close to the baby's blood vessels. Nutrients and waste products are able to diffuse back and forth through interstitial fluid from one blood system to the other. ...
... separate circulatory systems. However, the mother's blood vessels release pools of blood very close to the baby's blood vessels. Nutrients and waste products are able to diffuse back and forth through interstitial fluid from one blood system to the other. ...
Prenatal Development - Southern Illinois University School
... • Stress changes mother’s hormone levels • Mother and infant cortisol levels are highly correlated ...
... • Stress changes mother’s hormone levels • Mother and infant cortisol levels are highly correlated ...
Embryonic Development
... ii. Blastocoele (blastocyst cavity) iii. Trophoblast 5. Gastrulation – formation of the trilaminar disk (3 primary germ layers) from the bilaminar disk (hypoblast and epiblast) i. Endoderm ii. Mesoderm iii. Ectoderm B. Embryo – 0 to 8 weeks C. Fetus – 9 weeks to birth D. Implantation 1. Fetal portio ...
... ii. Blastocoele (blastocyst cavity) iii. Trophoblast 5. Gastrulation – formation of the trilaminar disk (3 primary germ layers) from the bilaminar disk (hypoblast and epiblast) i. Endoderm ii. Mesoderm iii. Ectoderm B. Embryo – 0 to 8 weeks C. Fetus – 9 weeks to birth D. Implantation 1. Fetal portio ...
Casey Thomas EDCO240 Professor Julie Jay January 13, 2015
... Lastly is the fetal stage and it starts when cell differentiation is almost complete; the embryo is now known as a fetus. This begins during the ninth week and will last until birth. The early body structures and systems continue to develop and the neural tube develops into the brain and spinal cord ...
... Lastly is the fetal stage and it starts when cell differentiation is almost complete; the embryo is now known as a fetus. This begins during the ninth week and will last until birth. The early body structures and systems continue to develop and the neural tube develops into the brain and spinal cord ...
Section 15.2 Reproductive Control
... it has formed into a hollow ball of cells called a blastocyst. The inner portion of the blastocyst contains a group of cells called the inner cell mass, this group of cells will develop into a fetus (baby). The outer portion of the blastocyst contains a layer of cells called the trophoblast. The tro ...
... it has formed into a hollow ball of cells called a blastocyst. The inner portion of the blastocyst contains a group of cells called the inner cell mass, this group of cells will develop into a fetus (baby). The outer portion of the blastocyst contains a layer of cells called the trophoblast. The tro ...
Saladin, Human Anatomy 3e
... 4. In spermatogenesis (sperm production), meiosis produces four equal-sized sperm. In oogenesis (egg production), it produces three small polar bodies, which disintegrate, and one large egg. 5. The ovaries usually release one egg per month. The egg travels down the uterine tube to the uterus, a trip ...
... 4. In spermatogenesis (sperm production), meiosis produces four equal-sized sperm. In oogenesis (egg production), it produces three small polar bodies, which disintegrate, and one large egg. 5. The ovaries usually release one egg per month. The egg travels down the uterine tube to the uterus, a trip ...
Development - mcguireswr
... • The gastrula forms, differentiation of cells and growth occurs. • The developing embryonic membranes become part of the placenta and umbilical cord. • After eight weeks of development the embryo is called the fetus. • The period of time between the fertilization of the egg and the birth of the off ...
... • The gastrula forms, differentiation of cells and growth occurs. • The developing embryonic membranes become part of the placenta and umbilical cord. • After eight weeks of development the embryo is called the fetus. • The period of time between the fertilization of the egg and the birth of the off ...
Sexual Reproduction - Mr Schmitt
... Embryonic development is the early development of an organism - in humans, it is the first two months after fertilization Stages ...
... Embryonic development is the early development of an organism - in humans, it is the first two months after fertilization Stages ...
Introduction - Fullfrontalanatomy.com
... Differentiation occurs through selective changes in genetic activity. A basic appreciation of human development provides a framework for enhancing the understanding of anatomical structures. ...
... Differentiation occurs through selective changes in genetic activity. A basic appreciation of human development provides a framework for enhancing the understanding of anatomical structures. ...
Prenatal Development Vocabulary - Bowdle FACS
... Journey from ovary to uterus takes 2-3 days. When ovum reaches uterus and is not fertilized it disintegrates and leaves the women’s body. ...
... Journey from ovary to uterus takes 2-3 days. When ovum reaches uterus and is not fertilized it disintegrates and leaves the women’s body. ...
Fertilization and Development
... Fertilization • In animals, fertilization is the fusion of gametes (sperm and egg). • Mammals rely on internal fertilization through copulation (sexual intercourse) to deliver the sperm to the female. • The male inserts his penis into the opening of the vagina, the passage into the female's other s ...
... Fertilization • In animals, fertilization is the fusion of gametes (sperm and egg). • Mammals rely on internal fertilization through copulation (sexual intercourse) to deliver the sperm to the female. • The male inserts his penis into the opening of the vagina, the passage into the female's other s ...
10b Repro Sys III- Pregn Developmt
... The late blastocyst implants in the wall of the uterus (by day ...
... The late blastocyst implants in the wall of the uterus (by day ...
Pregnancy PowerPoint
... – The fetus will begin to kick – All organ systems will develop and continue to mature – Cartilage is replaced with bone – Hair and eyelids form – With modern medicine, some fetuses can survive after only 22 weeks. – The longer the pregnancy the greater the chances for survival. ...
... – The fetus will begin to kick – All organ systems will develop and continue to mature – Cartilage is replaced with bone – Hair and eyelids form – With modern medicine, some fetuses can survive after only 22 weeks. – The longer the pregnancy the greater the chances for survival. ...
blastula stage
... this stage is the result of the invagination of the blastula stage. At this stage the three embryonic germ layers are formed. (ectoderm, mesoderm & endoderm). gestation the forty week period during which the fetus/embryo is protected and nourished in the uterus of the mother, also commonly known as ...
... this stage is the result of the invagination of the blastula stage. At this stage the three embryonic germ layers are formed. (ectoderm, mesoderm & endoderm). gestation the forty week period during which the fetus/embryo is protected and nourished in the uterus of the mother, also commonly known as ...
Conception to Birth
... the circulatory system, bones, muscle, excretory system, and reproductive system. • The outer layer of cells, the ectoderm, will become the nervous system, the sensory receptors (eyes, nose, and ears), and skin. • As the embryo develops so too does the placenta, the umbilical cord and the amnion (fl ...
... the circulatory system, bones, muscle, excretory system, and reproductive system. • The outer layer of cells, the ectoderm, will become the nervous system, the sensory receptors (eyes, nose, and ears), and skin. • As the embryo develops so too does the placenta, the umbilical cord and the amnion (fl ...
Prenatal development
Prenatal or antenatal development is the process in which a human embryo or fetus (or foetus) gestates during pregnancy, from fertilization until birth. Often, the terms fetal development, foetal development, or embryology are used in a similar sense.After fertilization, the process of embryogenesis, (the early stages of prenatal development) begins. By the end of the tenth week of gestational age the embryo has acquired its basic form and the next period is that of fetal development where the organs become fully developed. This fetal period is described both topically (by organ) and chronologically (by time) with major occurrences being listed by gestational age.