BJU Life Science Chapter 15 Review

During a strenuous workout, which of the following tells your body to increase your breathing rate?

• the amount of oxygen in your blood

• the amount of carbon dioxide in your blood

• the number of alveoli in your body

• the shape of your diaphragm

Tags

NGSS.HS-LS1-3

Which structure prevents food from entering your lungs when you swallow?

• larynx

• nasal cavity

• pharynx

• trachea

Which structure, also known as the windpipe, is the main passageway to your lungs?

• esophagus

• larynx

• pharynx

• trachea

Which of the following sequences correctly represents the pathway of air as it travels through the respiratory structures?

• nasal cavity → larynx → alveoli → bronchus → trachea

• nasal cavity → larynx → bronchus → trachea → alveoli

• nasal cavity → trachea → larynx → bronchus → alveoli

• nasal cavity → larynx → trachea → bronchus → alveoli

When your diaphragm contracts,

• you inhale

• you exhale

• your chest cavity enlarges

• you inhale and your chest cavity enlarges

The muscular chambers that pump blood to the lungs or body are the ________.

• ventricles

• stomach
• kidney
• liver

What is the purpose of valves?

• to allow blood to flow away from the heart

• to allow blood to travel to and from the lungs

• to prevent blood from flowing in the wrong direction

• to pump blood in the right direction

Most blood cells are formed in the __________.

• lungs
• liver
• spleen
• bone marrow

Which cellular structure is missing in red blood cells?

• cell membrane

• endoplasmic reticulum

• hemoglobin

• nucleus

Tags

NGSS.MS-LS1-2

Which blood component provides defense against foreign substances?

• hemoglobin

• red blood cells

• white blood cells

• platelets