Anatomy & Physiology WS 27

What is the primary function of veins?

• A heart rate below 60 beats/minute

• Merge as they get farther away from the capillaries, eventually forming veins

• Their primary function is to return blood to the heart

• A heart rate above 100 beats/minute

During a routine check-up, Dr. Avery noticed that Abigail's heart rate was unusually low. What is the definition of bradycardia?

• A heart rate below 60 beats/minute

• A heart rate above 100 beats/minute

• The amount of blood that flows through the cardiovascular system in a given time period

• A measure of how fast your heart is beating

Mason is running a marathon and notices his heart rate is unusually high. What does tachycardia refer to in this context?

• A heart rate below 60 beats/minute

• A heart rate above 100 beats/minute

• The amount of blood that flows through the cardiovascular system in a given time period

• A measure of how fast your heart is beating

Tags

NGSS.HS-LS1-3

Zoe is participating in a school marathon. During the run, she wants to monitor her health. What is the pulse a measure of?

• A heart rate below 60 beats/minute

• A heart rate above 100 beats/minute

• The amount of blood that flows through the cardiovascular system in a given time period

• A measure of how fast your heart is beating

Isla is studying the human body and wants to understand what describes the function of blood flow. Can you help her?

• A heart rate below 60 beats/minute

• A heart rate above 100 beats/minute

• The amount of blood that flows through the cardiovascular system in a given time period

• A measure of how fast your heart is beating

Luna is studying the human circulatory system. She wonders, what happens to venules as they move away from capillaries?

• Merge as they get farther away from the capillaries, eventually forming veins

• A heart rate above 100 beats/minute

• The amount of blood that flows through the cardiovascular system in a given time period

• A measure of how fast your heart is beating

Capillaries are the ____________________ blood vessels.

• smallest

• largest

• thickest

• longest

Anika and Hannah were learning about the human body in their biology class. Their teacher explained that the ____________________ of a capillary is so narrow that red blood cells must pass through single file.

• diameter

• length

• surface area

• volume

Ethan was learning about the human circulatory system in his biology class. He discovered that many veins that come from areas of the body below the heart have small folds of the tunica intima that form ____________________.

• valves

• arteries

• capillaries

• nodes

During a first aid class, Sophia learned to check the pulse by feeling the ____________________ artery in the neck.

• carotid

• femoral

• radial

• brachial