Respiratory System Introduction and Respiratory structures

the main muscle of the respiratory system that allows for inhalation aand exhalation

• lungs

• trachea

• diaphragm

a flap of tissue composed of elastic cartilage that closes when we eat to prevent entry of food and liquids into respiratory tract

• larynx
• pharynx
• trachea
• epiglottis

Known as the voice box, Contains vocal cords, and found between pharynx and trachea.

• windpipe
• larynx
• pharynx
• epiglottis

the ____ look like a cluster of grapes and is where the exchange of oxygen and carbon dioxide takes places.

• alveoli

• bronchial tubes

• lung

• diaphragm

After air moves through the pharynx it continues downward. The _____, or windpipe, directs the air into 2 separate branches or tubes.

• mucus
• trachea
• larynx
• epiglottis

a dome shaped sheet of muscle, the _________, separates the thoracic cavity from the abdominal cavity

• diaphragm
• epiglottis
• alveoli
• bronchial tubes

What are the air sacs that are covered with capillaries where gas exchange takes place?

• bronchi
• lungs
• oxygen
• alveoli

Tags

NGSS.HS-LS2-5

The two main branches from the trachea (one to each lung)

• bronchi
• alveoli
• capillaries
• bronchioles

Within the lungs, the exchange of oxygen and carbon dioxide occurs between the ___ and the capillaries.

• trachea

• bronchi

• alveoli

• diaphragm

Tags

NGSS.MS-LS1-3

What is the one of the main functions of the respiratory system?

• to provide gas exchange between air and circulating blood

• to bring oxygen to the body
• to break down food and absorb nutrients
• to remove oxygen from the body and deliver carbon dioxide to cells