Featured post

IRREGULAR PERIODS- WORLDSCIENCE

Image
   Menstrual Period Considered Irregular;             A normal cycle from the first day of one period to the first day of the succeeding can be anywhere from 21 to 35 days.          To determine whether your monthlies schedule is irregular, count from the last day of your former period and stop counting on the first day of your ensuing. Repeat this for three months. However, you have an irregular cycle, If the number of days between stopping and starting your period is outside of the 21 to 35 days range. Monthlies can also be considered irregular if your cycle length varies by more than 20 days from month to month. Why Do Some Menstrual epochs Grow Irregular? There are multiple variables that can affect the length and timing of your menstrual cycle. Some are redeemable, but others can gesture significant medical issues. Polycystic ovary cycle (PCOS PCOS) :                This metabol...
- Post a Comment

FERTILIZATION - worldscience

FERTILIZATION        


FERTILIZATION MEANING : 

  Meaning of Fertilization is a fusion of haploid gametes, egg and sperm to form the diploid zygote. 

    The fertilization process which  occurs with in the body or through reproductive technologies outside the body, the overall product in both cases is diploid zygote. 

FERTILIZATION DEFINITION: 

      Fertilization (or conception) is the beginning of human development. Fertilization normally occurs within several  hours of ovulation(some authors report up to 24 hours) when a man's sperm combines with a woman's egg inside a woman uterine tube. 



FERTILIZATION IN HUMAN:

      During ejaculation, hundreds of million of sperm (spermatozoa) are released in to the vagina. Almost immediately, million of these sperm are overcome by the acidity of vagina (approximate PH) 3.8  and million more may be blocked from entering the uterus by thick cervical mucus. Of those do enter, thousands are destroyed by phagocytic uterine leukocytes. Thus, the race into the uterine tubes, which is the most typical site for sperm to encounter the oocyte, reduced to a few thousands contenders. Their journey -thought to be facilitated by uterine contractions-usually takes from 30 minutes to 2 hours. If the sperm donor not encounter an Oocyte immediately, they can survive in the uterine tubes for another 3-5 days. 

FERTILIZATION TAKES PLACE  IN : 

During Fertilization, the sperm and egg unite together .This fertilization takes place in fallopian tubes to form a zygote. Then the zygote travels down the fallopian tube, where it becomes a morula. Once it reaches uterus, the morula become a blastocyst. The blastocyst then burrows into the uterine lining a process called Implantation. 




-

Comments

Post a Comment

Popular posts from this blog

HAIRGROWTH TIPS- WORLD SCIENCE

Image
  HAIR GROWTH TIPS            Hey, have you noticed a bunch of your hair strands  on your pillow or taking a shower. Don't  worry for about just follow these tips in your daily life, sure you will get changes in your hair growth.   WHAT ARE THE MAIN CAUSES OF HAIR LOSS?          Your hair cells are the second fastest-growing cells in your body. Hair is not a vital organ or tissue, so your body will never prioritize  its nutritional needs.  Due to hair's expendable nature, a nutritional imbalance will often show up first in the form of hair loss.            It occurs due many reasons such as stress, hereditary factors, medical conditions, hair treatment and even  the wrong product that don't suit for your hair type.       HAIRGROWTH TIPS: ONION  JUICE:                 Onion is rich in sulfur, which no...
Read more

HOW TO TREAT ACID REFLUX AT HOME- worldscience

Image
                 ACID REFLUX HOW TO A TREAT REFLUX AT HOME? ACID REFLUX MEANING:   Gastroesophageal Reflux  Disease(GERD) happens when contents from your stomach move up regurgitation into your esophagus. It's also known as acid reflux. At  the entrance to your stomach is a valve, which  is  ring of muscles called lower esophageal sphincter or LES normally closes as soon food passes  through it if the LES doesn't close all the way or it opens too often, acid produced by your stomach can move up into your esophagus. This can cause symptoms such as burning chest discomfort called heartburn. If  acid reflux symptoms happen more than twice a week, you may have acid reflux disease or gastro-esophageal reflux disease. THREE MAIN CAUSES OF ACID REFLUX DISEASE :   1. Poor or slow clearance of food from the stomach.   2. Delayed stomach emptying.   3. Too much acid in the stomach. POOR OR SLOW CLEARANC...
Read more

CONSTIPATION HOME REMEDIES-WORLDSCIENCE

Image
                HOW TO TREAT CONSTIPATION AT HOME? CONSTIPATION MEANING : Less than 3 bowel movements per week straining to start or complete a bowel movement. Stool consistency that looks like rock and pebbles a feeling of incomplete emptying. CONSTIPATION REASONS:    Low intake of fiber or not drinking enough fluid.    Eating excess meat or chicken     History of colon surgery, diabetics, gastrointestinal obstruction.    Low level of physical inactivity                        TREATMENT  OF CONSTIPATION: DIETARY MODIFICATION:     It is the most important step to treat constipation.  It is more important than any other the medicine you can take because  medicine can only improve the short -term episode of constipation.       FOOD FOR CONSTIPATION :     High fiber food  -Vegetables, who...
Read more