Human Body Systems

Front

What is the function of sneezing and coughing in the human body?

Back

Sneezing and coughing help to force pathogens out of the body.

Front

What is the name of the large dome-shaped muscle used in breathing?

Back

Diaphragm

Front

What are arteries and what is their function?

Back

Arteries are blood vessels that carry oxygen-rich blood away from the heart to the body parts.

Front

Where does mechanical and chemical digestion begin?

Back

Mechanical and chemical digestion start in the mouth.

Front

Where does most chemical digestion and nutrient absorption take place?

Back

Most chemical digestion and absorption of nutrients from digested food into the bloodstream take place in the small intestine.

Front

What is the role of the diaphragm in the respiratory system?

Back

The diaphragm contracts and relaxes to facilitate breathing by changing the pressure in the thoracic cavity.

Front

What is the difference between arteries and veins?

Back

Arteries carry oxygen-rich blood away from the heart, while veins carry oxygen-poor blood back to the heart.

Front

What is the primary function of the small intestine?

Back

The primary function of the small intestine is to digest food and absorb nutrients into the bloodstream.

Front

What is the significance of the mouth in the digestive system?

Back

The mouth is significant because it is where mechanical and chemical digestion begin, with the action of teeth and saliva.

Front

What are pathogens and how does the body expel them?

Back

Pathogens are harmful microorganisms that can cause disease, and the body expels them through sneezing and coughing.