Respiratory/Excretory System

The __________ system is responsible for bringing oxygen into the lungs and releasing carbon dioxide from the body.

• circulatory

• endocrine

• immune

• respiratory

The respiratory system controls __________, and the circulatory systems controls __________.

• antibodies; digestion

• breathing; blood flow

• muscles; bones

• muscles; bones

The __________ system is made up of the nose, pharynx, trachea, lungs, bronchi, and alveoli.

• circulatory

• endocrine

• immune

• respiratory

What is one similarity between the lungs and capillaries

• They are both activated by inhalation.

• They are both involved in gas exchanges.

• They are both part of the circulatory system.

• They are both regulated by the heart.

Read the following summary, which describes a body process. Then, answer the question.

Air enters the nasal cavity. It goes into the pharynx and moves into the trachea. Air enters the right and left bronchus, where it is then delivered to the lungs. After air enters the alveoli, oxygen moves through the wall of the alveoli and into the blood. Then, carbon dioxide and water pass from the blood out into the air through the alveoli, also. What process is being described

• Circulation

• Excretion

• Immune response

• Respiration

In which part of the respiratory system is the air first cleaned moistened and warmed?

nose

• nose

• lungs

• pharynx

• bronchi

Which substances are produced during respiration as waste products to be exhaled?

• water and oxygen

• oxygen and red blood cells

• carbon dioxide and water

• carbon dioxide and red blood cells

The role of the respiratory system is to bring what substance into the body?

• oxygen

• carbon dioxide

• red blood cells

• water

During gas exchange, which substance moves from the alveoli into the blood?

• carbon dioxide

• oxygen

• water

• nitrogen

What is the dome-shaped muscle that plays an important role in breathing called?

• diaphragm

• alveolus

• larynx

• bronchus