Life Span Psychology- Prenatal Development

3073 Words13 Pages
Prenatal Development • In the life span development the shortest is the period of the newborn or infancy • This period, which begins at conception and ends at birth, is approximately 270 to 280 days in length or nine calendar months. • How life begins? o New life begins with the union of male sex cell and female sex cell. o These sex cells are developed in the reproductive organs, the gonads. o Male gonad is “testes” and female gonad is “ovaries” o Male sex cell is referred as “spermatozoon” and female sex cell is referred as “ovum”. o Male and female cells differ in two ways o Way 1: in terms of chromosomes  In mature ovum, there are 23 matched chromosomes (XX)  In mature spermatozoon, there will be 22 matched chromosomes…show more content…
 Cultural pressure from parents, teachers, their peer group and society to develop attitude and behavior patterns.  Leaning experience are determined by the individual’s sex  Attitude of parents and other significant family members toward individuals because of their sex. 3. Number of offspring • While most humans are singleton, multiple births also can occur • When a ripe ovum  Is fertilized by one spermatozoon, then singleton birth will occur  Is splits into two, then identical twin or uniovular birth will occur • When two or more ova released simultaneously and fertilized with different spermatozoa then nonidentical or biovular or fraternal twin birth will occur. • Effects on development  Singleton gain undivided attention of mother, but multiple birth shares it.  During the early years, babies of multiple births receive less mothering which will make them feel unloved or actually rejected.  Being subjected to pressures to be alike and being denied opportunities to develop their individualities leaves its mark on their personalities and on their patterns of behavior. • Common characteristics of twins  Developmental lag: than singleton in terms of physical, mental, motor and speech.  Physical development: twins tend to be smaller then singleton  Mental development: mental similarities are greater

More about Life Span Psychology- Prenatal Development

Open Document