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WorksheetsThe Human Anatomy
Total questions: 50
Worksheet time: 11mins
The ______ is the main organ of the nervous system.
Heart
Brain
Lungs
Skin
The spinal cord helps _______travel from the nerves in the brain to the nerves in the rest of the body
Blood
Messages
Oxygen
Waste
The arteries in the heart carry the blood_______ from the heart
Away
To
Around
Behind
The average amount of bones in an adult is ______
200
260
206
199
How many bones does an average newborn have?
300
400
326
302
What is the biggest organ?
Lungs
Heart
Skin
Muscles
What is the "control center" of the cell?
Nucleus
Cytoplasm
DNA
Ribosome
If the DNA strands in just ONE cell were stretched out in a line, it would be about _________ long
1 meter
2 meters
10 meters
0.5 meters
What is the first layer of the skin called?
Aquadermis
Dormin
Dermis
Epidermis
The thinnest skin in the body is on the________
Ears
Lips
Eyelids
Nose
The thickest skin is on the _________
The top of your head
The palm of your hands
Soles of your feet
Your cheek
What does melanin decide?
The number of freckles
Skin color
Hair color
Hair length
What is the trachea?
It carries the blood to the heart
It carries the blood away from the heart
It carries air into the lungs
It carries carbon-di-oxide away from the lungs
What are the ears and tips of the nose made out of?
Carmileage
Cartilage
Amory
Magnum
How many miles of blood vessels does the brain have?
400
300
700
500
How many hemispheres does the brain have?
5
4
6
2
How much percent of the body's energy does the brain use?
30%
40%
20%
10%
How many nerve cells are in the brain?
90 billion
100 billion
80 billion
200 billion
The average weight of an adult's brain?
1 kg
2 kg
1.5 kg
2.5 kg
How long does food take to travel from the mouth to the stomach?
10 seconds
20 seconds
5 seconds
7 seconds
How many liters of saliva are produced every day?
1
2
2.5
3
How many days does the average person spend brushing their teeth in their lifetime?
30
35
38
40
How many tastebuds are on a child's tongue?
15,000
30,000
8000
10,000
How many tastebuds are on an adult's tongue
10,000
6000
7000
8000
How many smell receptors are in the nose
25,000,000
20,000,000
19,000,000
27,000,000
How many colors can the eye recognize?
5 million
6 million
9 million
10 million
How many times does the eye blink in an average lifetime?
400 million
415 million
430 million
450 million
How far is the farthest galaxy our eyes can see?
3 million light-years
2 million light-years
2.5 million light-years
3.5 million light-years
What is the width of the ear canal?
7mm
8mm
6mm
5mm
How many sound-detecting hair cells are in the cochlea?
20,000
17,000
19,000
16,000
How many pairs of ribs are there?
10
11
12
13
How many vertebrae are in your neck?
6
7
8
9
How many times does the average heartbeat in a lifetime?
2.5 billion
3 billion
4 billion
3.5 billion
The heart pumps blood through the aorta at ____mph
3
2
1
1.5
How many blood cells are in every drop of blood
6 million
2 million
4 million
5 million
How many "liters" of air does the typical adult breathe in a day?
10,000
9,000
11,000
12,000
Every second, your body produces______ cells
20,000,000
15,000,000
25,000,000
17,000,000
The largest bone in the body is the
Femur
Tibia
Anvil
Leg
What system in the body is made of bones
Muscular
Skeletal
Nervous
Digestive
What percent of the adult human body is water?
50
60
70
80
How many humans are in America?
7 billion
4 billion
300 million
800 million
How many mph is a sneeze?
20
10
30
100
The smallest bone in the human body is about the size of:
A strand of hair
A grain of rice
A thumb
A spoon
The smallest bones in the body are found in the:
Arms
Ears
Neck
Foot
How many taste buds does the average person have?
9000
10,000
9 million
10 million
How many different types of taste buds are there?
5
7
100
200
How many sweat glands does the average person have?
1 million
2.6 million
26 million
260 million
If you were to stretch out your entire digestive system, how long would it be?
10 ft
20 ft
30 ft
50 ft
Most common blood type is ..
B+
O+
AB-
B-
How many watts of electricity can the brain produce?
20
30
23
33
