Science Chapter 22 Test
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Sends chemical messages in your blood that affect specific tissues called target tissues.
Sends rapid impulses to and form your brain, then throughout your body.
The events that occur when a gland produces a hormone and sends it to a target tissue.
Glands release their products through ducts into the blood
Endocrine glands are ductless so it releases hormones direct to the blood
The 4 main functions of the endocrine.
Absorption of food
Adaptation to stressful situations
The coordination of the circulation of blood
Promotion of growth and development
A pea-sized structure attached to the hypothalamus of the brain, produces hormones that affect a wide range of body activity.
Produces hormones that regulate metabolic rate, control the update of calcium by bones, and promote normal nervous system development.
Help regulate calcium levels in the body.
Produces a variety of hormones.
How does the endocrine system control its output of a hormone?
Tells it where to go.
How often does a female release and egg?
What is the process of egg release called?
What happens inside the uterus as and egg matures in the ovary?
A zygote is formed.
If and egg isn't fertilized, what happens to the egg and to the lining of the uterus?
Thickens then breaks down.
What is this called, how often does this occur, and how long does it last?
Menstrual cycle, 28 days, 3-7 days.
Why are the testes located outside the body rather than inside?
They have to be a certain temp.
What happens during menopause?
Hormone production by the ovaries begin to shut down.
When does menopause happen?
What does semen consist of?
Sperm and Fluid.
Pituitary Gland in Females
Female sex hormones
Egg production in ovaries
Pituitary Gland in Males
Male Sex Hormones
Sperm production in testes
Steps through which and egg moves in the female reproductive system.
Phases of the menstrual cycle.
1. menstruation flow begins
2. Hormones cause the lining of the uterus to thicken
3. Continue to increase in thickness. Lining of he Uterus wall breaks down.
Two eggs are released and both are fertilized.
A fertilized zygote divides into 2 separate zygotes.
Twins of the same sex are born.
Twins with different sexes are born.
Infancy period of life is how long?
First 18 months
Childhood period of life is how long?
1 to 12 years
Adolescence occurs in what age of life?
12 or 13-16
Adulthood period of life?
Older adulthood period of life?
Science Chapter 22 Test
Cards for the chapter 22 test in science mrs.jones