Question

Where is the diaphragm located?


just below the trachea

just below the lungs

inside the lungs

behind the sinuses
8.
When the diaphragm moves downward, the lungs fill with air.

True
False
9.
The diaphragm moves upward to make us breathe in.

True
False
10.
What do capillaries do?


connect the windpipe and the lungs

filter bacteria out of the air we breathe

connect arteries and veins

help fight infection
11.
Which of the following carries oxygen rich blood to various parts of the body?
arteries
veins
cilia
alveoli

Answer 1

.
Veins carry oxygen poor blood back toward the heart.

True
False
13.
The heart is a pump made of 4 chambers.

True
False
14.
The center of hemoglobin is made of which of the following?


calcium

magnesium

water

iron
15.
Why is hemoglobin important?


It transports oxygen

It fights disease

It filters out dust and dirt from the air

It forces blood through the body
16.
Platelets thicken blood and help it to clot.

True
False

Answer 2

Below the lungs, false, true, connects arteries and veins, I believe veins, true, true, Iron, it transports oxygen, and finally, true.