Hormones
What hormone activates an emergency mode for your body?
epinephrine
What gland secretes hormones that regulate glucose in the bloodstream?
Pancreas
Testes produce gametes continuously, but ovaries release an ovum________________.
once a month
What is the organ where a fertilized ovum will develop into a baby?
Uterus
Pregnancy lasts about how many weeks?
40 weeks
Are hormones carried in the endocrine ducts?
No
What gland produces epinephrine?
adrenal gland
What chromosomes to mothers and fathers pass to their offspring?
Mothers pass only X chromosomes (XX)
Fathers pass X and Y (XY)
What is the primary organs of the reproductive system?
Gonads
A person's teen years are known as
adolescence
A thermostat turning on an air conditioner unit and then turning the unit back off as the temperature cools is an illustration of how a ___________ works in the body.
negative feedback system
What gland secretes a variety of hormones to control bodily processes?
pituitary gland
Three facts about the occurrence of fertilization.
occurs in the tube connecting the ovary to the uterus
occurs when an egg and sperm come together
occurs within a few days of ovulation
What produces sperm and egg
testes and ovaries
What life stage is when body proportions begin to change?
childhood
State three facts about ovulation.
a positive feedback system
the release of an ovum by an ovary
caused by an increase in estrogen production
What gland links the nervous system to the endocrine system and controls the other endocrine glands?
hypothalamus
What is the correct chronological order of events of the reproductive system?
ovulation
fertilization
implantation
What develops when a baby attaches to its mother?
Placenta
*About how long does each trimester last?
thirteen weeks
What are three facts about hormones?
They are chemical messengers.
They are transported to the cells and tissues they affect.
They have slower, longer-lasting effects than nerve impulses do.
What is produced by the pituitary gland?
growth hormone
The removal of the inside layer of the uterus occurs during
menstruation
The embryo is attached to the placenta by the
What does this give to the developing fetus?
-Umbilical cord
- It acts as a conduit for nutrients, oxygen, and waste products between the mother and the developing fetus.
*What is the difference between an embryo and a fetus?
A developing baby is considered an embryo up until it is nine weeks old. After that time, the baby is called a fetus.