Biology and Cardiovascular System Worksheet

What is the correct order of biological organization?

• Tissue → Cell → Organ → Organ System

• Cell → Organ → Tissue → Organ System

• Cell → Tissue → Organ → Organ System

• Organ System → Organ → Cell → Tissue

Tags

NGSS.HS-LS1-2

Which body system includes the brain and spinal cord?

• Endocrine

• Skeletal

• Nervous

• Muscular

What is the main function of the cardiovascular system?

• Produce hormones

• Exchange gases

• Circulate blood

• Filter waste

What valve does blood pass through from the right atrium to the right ventricle?

• Pulmonary Valve

• Tricuspid Valve

• Mitral Valve

• Aortic Valve

What happens during the “lub” sound of the heartbeat (S1)?

• Semilunar valves close

• Blood leaves the aorta

• AV valves close

• Blood enters the atria

What part of an EKG represents atrial depolarization?

• P wave

• QRS complex

• T wave

• U wave

Which of the following is a cause of heart murmurs?

• High oxygen levels

• Normal valve function

• Turbulent blood flow

• Low blood sugar

What sound might you hear in a patient with pneumonia?

• Stridor

• Wheezing

• Crackles

• Murmur

What breath sound is most associated with asthma?

• Wheezing

• Crackles

• Stridor

• Absent breath sounds

Which heart sound is usually not audible in healthy individuals?

• S1

• S2

• S3

• S4