stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Body System Fun Facts Flashcards | StudBud
Explore
/
Body System Fun Facts
Body System Fun Facts
20 terms
·
StudBud Administration
·
1,471 plays
Interesting facts about the human body
Flashcards
20 cards
F
Practice quiz
P
Host live
L
Questions
20
Answers
1
At birth we have _________________ brain cells
10 million
10 billion
10 thousand
10 trillion
2
The average adult digestive system is _____________ feet long
30
20
10
40
3
Over ____________ the bones in your body are in your hands and feet.
3/4
1/4
1/3
1/2
4
The intestinal tract is ______________ meters long
2
4.5
20
8.5
5
Only __________ percent of the brain cells are in use at one time
60
50
4
20
6
We lose about ___________ ounces of water a day by breathing
32
16
5
12
7
One drop of blood has ______________ red blood cells
5 million
500
5 billion
5 thousand
8
The average persons heart beats _____________ times in their life
3 trillion
3 million
3 billion
3 thousand
9
It takes 17 muscles to smile, and __________ to frown
17
36
42
10
10
What percent of your brain is fat?
60
25
50
85
11
Our bodies take __________ years to completely remake our skeletal system.
4
7
1
2
12
The average adult has ____________ pints of blood
9
7
8
6
13
Your brain uses _____________ percent of the oxygen in your body.
30
20
10
40
14
The average person has _______________ species of bacteria living in their colon
4,000
40
4,000,000
400
15
The average person produces _______________ pounds of solid waste in a year.
400
200
300
100
16
Getting less than ____________ hours of sleep a night can affect your immune system
6
5
8
7
17
Your Kidney filters ____________ liters of blood per hour
78
36
108
2
18
If you stretched out the entire cardiovascular system, it would stretch _____________miles
600,000
6,000
60,000
60
19
It takes ______________ seconds for the food to travel through the esophagus to the stomach
7
5
12
2
20
The average person pees _________________ times a year.
2000
900
3000
600
