In this lesson, you explored the following essential questions:

• What is the relationship between the heart rate, blood pressure, and exercise?
• How can technology treat disorders of the circulatory system?
• At the capillary level, how does the circulatory system aid the digestive, excretory, respiratory, and motor systems' exchange of matter with the environment?
  

Average blood pressure and heart rates can be attributed to healthy lifestyles. This can include exercise and a balanced diet. Heart rate and blood pressure are a response to either a cardiovascular disorder or lifestyle choices. The heart rate increases as cellular respiration increases during vigorous exercise.

Exercise strengthens the heart muscle and can help prevent other cardiovascular diseases, such as high blood pressure. Heart conditions and blockages in major blood vessels can be treated with advanced surgeries while the symptoms can be managed with medicine. Diagnosing these diseases utilizes advanced imaging technology.

Lesson Glossary

arterial pressure: the pressure blood exerts on artery walls

congenital: appearing at birth due to a heredity/genetic abnormality or from complications during a pregnancy

diastole: the relaxation of the heart

mitral stenosis: a heart valve disorder that narrows or obstructs the mitral valve opening

hydrostatic pressure: the pressure exerted by a fluid on any contacting surface, such as the force exerted by blood on a capillary wall

osmotic pressure: hydrostatic pressure produced by a solution that is separated by a semi-permeable membrane

sphygmomanometer: a device used to measure blood pressure

stethoscope: an acoustic medical device designed to listen to the internal sounds of the human body

systole: a contraction of the heart

Assessment

Complete Unit D: Section 3 Assignment now.