Fertilisation
Has to take place before a new animal can grow. The sperm and the egg join up, making a fertilized .the new animal grows from this fertilized egg which divides, producing more and more cells.
Intestine cell :cells which take in or absorb food
Fat cell: cell which store food
Nerve cell: cells which carry messages round the body
Red blood cell: cells which carry chemical round your body
Cell in the nose: cells which allow chemicals to pass through channels between then.
Cells in the wall of a blood capillary :cell with tiny hairs which move liquids over their surface.
Investigate
1. where is an egg:
there is really only one answer to that question. the sperm gets to the egg by swimming, but in some cases, the sperm meets the egg outside the mother's body (EXTERNAL fertilization). in other cases, the sperm and egg meet inside the mother's body (INTERNAL Fertilization)
IN CONCLUSION:
The egg of the woman is the egg
a. produced:
Produced babies
B. fertilized
Has to take place before a new animal can grow. In fertilization, the sperm and the egg join up, making fertilization egg. The new animal can grows from this fertilized egg which divedes, producing more and more cells
2. When the baby is in the womb
The behavior of the fetus inside the womb has been investigated for years. Studies show that their movements are reactions to certain stimuli.
The presence of a hormone in the blood of women corroborates these early suspicions given the absence of menstrual period. However, from the laboratory confirmation, are estimated to have passed at least seven to nine days from fertilization. From here on begins the development of an amazing life in the womb.
Besides the formation of the different anatomical structures, the fetus exhibits a range of skills that can be seen with ultrasound through the expressions of disgust, pain, breathing, jumping, and stretching hipos, among others.
A. How does it get food and oxygen?
B. Pregnant women increased their energy needs and therefore should increase the intake of protein, vitamins, minerals, carbohydrates and fats, due to the increasing demands for feeding the baby she carries in her womb formed, so that the healthy Fetal growth depends on the diet that has the mother, and should be more quality than quantity. The fetus is nourished and receives oxygen from the placenta which is attached to the wall of the uterus and connects to the fetus through the umbilical cord.
3. What are contractions?
• Contractions focal
Are due to stimulation of only one sector of the uterus, usually up to a movement of the baby.
• Generalized Contractions
Begin in any one sector of the uterus and are transmitted to all of them. May be due to the baby's movements, changes of position (from lying to sitting), irritation to the bladder by uterine busy or intestinal congestion.
• Braxton Hicks Contractions
Starting from the fifth or sixth month of pregnancy or earlier, and are characterized by covering the uterus, have a downward gradient (going from the bottom of the uterus into the vagina). They are not only painful and feels the abdomen hardens and gives a feeling of abdominal tension when they appear. Last approximately 30 to 60 seconds.
• Contractions of birth
The contractions of birth are different. They are very regular, every two or three minutes and reach a length of approximately 90 to 120 seconds each. Not go unnoticed because most of the time are painful. Usually also are associated with the expulsion of the mucus plug, which is a flow gelatinous, often stained with blood, and a new sense of pressure in the vagina, caused by the baby's head to press the perineum and rectum
4. How is a baby born?
5. Why does the graving embryo depend on the cord?
6. Why can the cord be safely cut once the baby is born ?
7. If a woman begins to realease eggs at the age of is,and stops releasing them at 45 ,how many eggs will she produce?
8. Find ait:
What special foods a mother to be should have in her diet .and why?
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