Human Reprouction Flashcards
(24 cards)
Gonad
And organ that produces sex cells in animals
Semen
A fluid containing speed and seminal fluid
Puberty
The beginning of sexual maturity
Infertility
The inability to produce off spring
Ovulation
The release of the egg from the ovary
Menstrual cycle
A series of events that occurs every 28 days on average in the female if fertilisation has not taken place
Menopause
When ovulation and menstruation stop happening in a female
Menstruation
The discharge of the lining of the uterus and the unfertilised egg
Copulation
The act of sexual intercourse
Orgasm
The emotional and physical sensations experienced at the peak of sexual excitement
Ejaculation
The release of semen from the penis
Insemination
The release of semen into the vagina just outside the cervix
Implantation
The embedding of the fertilised egg into the lining of the uterus
In-vitro fertilisation
Removing eggs from an ovary and fertilising them outside the body
Morula
A solid ball of cells formed from a zygote by mitosis
Blastocyst
A hollow ball of cells formed from a morula
Germ layers
Basic layers of cells in the blastocyst from which all adult tissue and organs will form
Ectoderm
Outer- will form nails, skin, hair, nervous system
Mesoderm
Surrounds coelum will form muscles skeleton, excretory system, respiratory system, circulatory system, reproductive
Endoderm
At centre will form lining of digestive, respiratory and excretory systems and liver and pancreas
Gestation
The length of time spent in the uterus from fertilisation to birth
Lactation
Thé sécrétion of milk from the mammary glands of the female
Birth control
Refers to methods taken to limit the number of children that are born
Contraception
The deliberate prevention of fertilisation or pregnancy
