Human Body Systems Quiz

Name:

Date:

Instructions: How well do you know the systems that keep your body running? Test your recall of human anatomy and physiology.

1.
Which organ is responsible for filtering blood and producing urine?
A
Kidney
B
Liver
C
Spleen
D
Pancreas
2.
How many chambers does the human heart have?
A
5
B
3
C
4
D
2
3.
What system includes the brain, spinal cord, and nerves?
A
Nervous system
B
Endocrine system
C
Lymphatic system
D
Muscular system
4.
What is the largest bone in the human body?
A
Humerus
B
Pelvis
C
Tibia
D
Femur
5.
Which organ produces bile to aid in digestion?
A
Liver
B
Stomach
C
Gallbladder
D
Pancreas
6.
What type of blood vessel carries blood away from the heart?
A
Arteries
B
Venules
C
Capillaries
D
Veins
7.
How many bones are in the adult human body?
A
186
B
226
C
206
D
256
8.
What is the body's primary defense system against disease?
A
Endocrine system
B
Respiratory system
C
Digestive system
D
Immune system
9.
Which part of the brain controls balance and coordination?
A
Cerebellum
B
Brain stem
C
Hypothalamus
D
Cerebrum
10.
What gas do we exhale that plants use for photosynthesis?
A
Nitrogen
B
Oxygen
C
Carbon dioxide
D
Hydrogen
11.
What is the smallest bone in the human body?
A
Stapes (stirrup bone)
B
Malleus
C
Incus
D
Hyoid
12.
Which organ is responsible for producing insulin?
A
Liver
B
Thyroid
C
Adrenal gland
D
Pancreas
13.
What is the main function of red blood cells?
A
Fight infection
B
Carry oxygen
C
Clot blood
D
Produce antibodies
14.
What connects muscles to bones?
A
Fascia
B
Ligaments
C
Tendons
D
Cartilage
15.
Which system includes the trachea, bronchi, and lungs?
A
Respiratory system
B
Digestive system
C
Lymphatic system
D
Circulatory system

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