CELLS
The body's first line of defense
covering cells (skin)
adults have _______ more blood than kids
1 liter
the septum's function is
to separate the right and left sides of the heart
The muscle that helps the lungs expand is the
diaphragm
What ensures that our blood clots when it needs to?
platelets
cilia's function is
to sweep away bad particles
oxygen-rich blood just came from ________
the lungs
or
the left side of the heart
Name the chambers of the heart
left and right atriums
left and right ventricles
Right after oxygen is inhaled through mouth or nose, it goes to _________
the trachea
After the trachea, the oxygen flows to our
bronchial tubes
The body's second line of defense is
white blood cells
The red color in blood comes from
hemoglobin
An adult pulse is about ______ beats per minute
70
Plants help us with our respiration by _____________
inhaling carbon dioxide
oxygen-poor blood can be found in the
a) right side of the heart
b) left side of the heart
A
How do covering cells repair a cut?
by reproducing themselves
blood flows in a ONE WAY direction because of
valves
What do you know about "one minute"?
the time that it takes for the blood to make the trip around our body
one gas that remains the same during inhaling and exhaling is
nitrogen
Our heart rate would be faster when...(3)
1. during or after activity
2. when nervous or scared
3.when growing
function of cartilage (2)
1. to support
2. to absorb shock
after giving away nutrients and oxygen, blood flows into __________
veins
Where can a doctor usually find one's pulse? (2)
neck or wrist
the disease that affects the lungs
emphysema
red blood cells' function is
to transport oxygen through the blood (to get to all our cells)
a group of same cells is called
tissue
after exiting the valve of the left ventricle, the blood flows into the ____________
aorta
from which blood vessel are nutrients and oxygen given out to the cells?
capillaries
The gas exchange in the lungs takes place in
air sacs
an organ is made up of different _____________
tissues