Digestive Systemme
What organ starts digestion by chewing and mixing food with saliva?
Mouth
What organ pumps blood throughout the body?
Heart
What organ is known as the voice box?
Larynx
How many bones does an adult human body have?
206
Which system breaks down food into nutrients?
Digestive system
What is the name of the tube that carries food to the stomach?
Esophagus
Name the blood component that carries oxygen.
Red Blood Cells
Tiny air sacs where gas exchange happens.
Alveoli
What is the main function of the skeletal system?
Support, protection, movement, storage, blood cell production.
Which system carries oxygen and nutrients to the body and removes waste?
Circulatory system
Which organ produces bile to break down fats?
Liver
Which blood vessels carry blood away from the heart?
Arteries
What muscle separates the chest cavity from the abdominal cavity and helps breathing?
Diaphragm
Which muscle type is involuntary and found in the walls of organs?
Smooth muscle
Which system provides oxygen to the blood and removes carbon dioxide?
Respiratory system
Where are nutrients absorbed into the blood?
Small intestine
What part of the heart receives oxygen-rich blood from the lungs?
Left atrium
What organ is the main site of gas exchange with blood?
Lungs
Which muscle type forms the walls of the heart?
Cardiac muscle
Which system helps us move and maintain posture?
Muscular system
What process moves food down the esophagus?
Peristalsis
What are the three types of blood vessels?
Arteries, Veins, Capillaries
What part of the respiratory system filters, warms, and moistens incoming air?
Nose and Nasal Cavity
What are the three main types of muscles?
Skeletal, Smooth, Cardiac
Which two systems work together to deliver oxygen to the body?
Respiratory & Circulatory systems