Human Body Systems 1
Human Body Systems 2
Human Body Systems 3
Human Body Systems 4
100
The part of food the body uses to grow and survive is a _______.
nutrient
100
A ______ is a chemical signal sent to the organs of the body.
hormone
100
The period of time during which the reproductive system develops is _______.
puberty
100
______ is the part of the blood that carries nutrients.
plasma
200
A sperm cell and an ova are called _______.
gametes
200
________ is the maintenance of steady internal conditions in the body when external conditions change.
homeostasis
200
An automatic movement the body makes in response to a signal is a ______.
reflex
200
The basic unit of the nervous system is the _______. (This is what nerve cells make up)
neuron
300
The first two years of life are known as?
infancy
300
Which system is responsible for transporting nutrients throughout the body?
Circulatory System
300
_________ occurs when a sperm cell and an egg cell join.
Fertilization
300
Taste and smell are two of the five ____.
Senses
400
Which of the following is NOT part of the nervous system? a. the brain b.a neuron c. a lymphocyte d. the spinal cord
C. a lymphocyte
400
Food enters the body through the _____?
Mouth
400
After food is swallowed it enters the _____.
esophagus
400
After leaving the esophagus, where does food go next?
Stomach
500
Name for soupy mixture that leaves the stomach and enters this organ?
chime, small intestine
500
In the small intestine, nutrients enter the _____, which carries them around the body.
blood
500
Undigested food moves into the _______, where water is removed.
Large intestine
500
What is a zygote?
The first cell of a new human. Happens immediately after fertilization.
M
e
n
u