Questions & Answers
Browse all 25 questions from the
Human Body Basics study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
How many primary chambers are in the human heart?
2
Which organ is primarily responsible for pumping blood throughout the body?
-
A
Lungs
-
B
Stomach
-
C
Brain
-
D
Heart
3
What is the largest organ of the human body?
-
A
Liver
-
B
Skin
-
C
Brain
-
D
Lungs
4
Which part of the body is responsible for processing information and controlling movement?
-
A
Stomach
-
B
Liver
-
C
Brain
-
D
Kidneys
5
How many lungs does a healthy human usually have?
6
What substance makes up the majority of the human body?
-
A
Fat
-
B
Bone
-
C
Water
-
D
Muscle
7
Which bones protect the heart and lungs?
-
A
Ribs
-
B
Skull
-
C
Pelvis
-
D
Femur
8
What is the hard, white outer covering of a tooth called?
-
A
Dentine
-
B
Enamel
-
C
Pulp
-
D
Cementum
9
Which organ is responsible for filtering waste from the blood to create urine?
-
A
Heart
-
B
Kidneys
-
C
Liver
-
D
Stomach
10
What is the name of the main structural framework of the body?
-
A
Muscular system
-
B
Nervous system
-
C
Skeletal system
-
D
Digestive system
11
Which gas do humans inhale to survive?
-
A
Carbon dioxide
-
B
Nitrogen
-
C
Oxygen
-
D
Helium
12
What is the largest bone in the human body?
-
A
Femur
-
B
Humerus
-
C
Tibia
-
D
Radius
13
Which organ produces bile to help with digestion?
-
A
Pancreas
-
B
Liver
-
C
Stomach
-
D
Gallbladder
14
What is the name of the tissue that connects muscles to bones?
-
A
Ligament
-
B
Cartilage
-
C
Tendon
-
D
Vein
15
How many senses do humans typically have?
16
Which blood cells are responsible for fighting off infections?
-
A
Red blood cells
-
B
White blood cells
-
C
Platelets
-
D
Plasma
17
What is the name of the tube that carries food from the throat to the stomach?
-
A
Trachea
-
B
Esophagus
-
C
Small intestine
-
D
Bronchi
18
Which part of the eye is responsible for focusing light?
-
A
Pupil
-
B
Iris
-
C
Lens
-
D
Retina
19
What are the chemical messengers of the body called?
-
A
Enzymes
-
B
Hormones
-
C
Proteins
-
D
Vitamins
20
Which layer of the skin is the outermost one?
-
A
Dermis
-
B
Epidermis
-
C
Subcutaneous layer
-
D
Hypodermis
21
What is the primary function of red blood cells?
-
A
Fighting germs
-
B
Digesting food
-
C
Carrying oxygen
-
D
Clotting blood
22
Which joint allows the leg to bend at the middle?
-
A
Elbow
-
B
Wrist
-
C
Knee
-
D
Ankle
23
What is the name for the tiny air sacs in the lungs where gas exchange occurs?
-
A
Alveoli
-
B
Bronchi
-
C
Trachea
-
D
Capillaries
24
Which organ is responsible for storing food temporarily during digestion?
-
A
Large intestine
-
B
Liver
-
C
Stomach
-
D
Pancreas
25
What makes up the majority of a bone's weight?
-
A
Water
-
B
Calcium
-
C
Iron
-
D
Protein
