Respiratory System
The organ where oxygen enters your blood.
The lung
The organ that pumps blood through the body.
The heart
The first organ where food enters your body.
mouth
Asthma is a disease where the airways become swollen and narrow, making it hard to breathe.
True/ False
True
The organ that absorbs water and forms solid waste.
the large intestine
The small air sacs in the lungs where gas exchange happens.
alveoli
These blood vessels carry blood away from the heart.
arteries
The long tube that carries food from the mouth to the stomach.
esophagus
Pneumonia is caused only by bacteria.
True/ False
False — it can be caused by bacteria, viruses, or fungi.
This digestive organ is the largest internal organ in the human body.
the liver
The tube that connects your throat to your lungs.
trachea
These tiny blood vessels that connect veins and arteries allow exchange of oxygen and nutrients with tissues.
capillaries
The organ where most digestion and nutrient absorption takes place.
the small intestine
Heart disease and lung disease are completely unrelated. True / False
False — poor lung function can put stress on the heart, and vice versa
The “windpipe” is kept separate from the food pipe by this flap of tissue.
the epiglottis
The dome-shaped muscle that helps you breathe in and out.
diaphragm
This chamber of the heart receives oxygen-poor blood from the body.
right atrium
what is the other name of Gut?
Alimentary canal
The flu (influenza) only affects the digestive system.
True/ false
.
False — it mainly affects the respiratory system
The small intestine is longer than the large intestine.
True/ False
True — it’s about 6 meters long vs. 1.5 meters for the large intestine.
Gas exchange in the lungs happens because oxygen moves from a high concentration in the alveoli to a lower concentration in the blood.
True / False
True — this process is called diffusion
This chamber pumps oxygen-rich blood to the body.
left ventricle
The wave-like muscle movements that push food down the esophagus.
peristalsis
COVID-19 only affects the lungs.
True/ False
False — it primarily affects the respiratory system but can also damage the heart, blood vessels, and other organs.
The digestive system works alone and does not depend on other body systems .True/ False
False — it works with the circulatory, muscular, and nervous systems.