Human Body Systems

What is the name of the red portion of the brain?

• Frontal Lobe

• Occipital Lobe

• Temporal Lobe

• Parietal Lobe

What do all four lobes make up?

• Brain Stem

• Cerebellum

• Cerebrum

• Pons

What part of the brain is label A?

• Brain Stem

• Cerebellum

• Cerebrum

• Pons

What part of the brain is labeled B?

• Brain Stem

• Cerebellum

• Cerebrum

• Pons

How does exercise affect heart rate?

• Increases heart rate

• Decreases heart rate

• Causes heart rate to slow down

• Causes heart rate to fluctuate

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Atherosclerosis causes a build up of fat in the arteries. How is blood flow affected by this?

• Blood flow is increased due to widening of vessels

• Blood flow is decreased due to arteries being more open

• Blood flow is increased due to arteries becoming narrower

• Blood flow is decreased because the arteries are narrower

Dehydration causes water to leave the blood plasma. What affect would dehydration have on blood pressure?

• Increase because the percent of salt decreases

• Increase because resistance of blood vessels decreases as they relax

• Decrease because concentration of oxygen goes down

• Decrease because blood volume would be decreased

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Smoking tobacco is harmful to the body in many ways, including damaging the blood vessels lining and increasing blood viscosity. This results in increased risk of deadly blood clots and heart attacks. Why does smoking increase these risks?

• Causes increased resistance against blood flow. Increased resistance decreases flood flow.

• Blood clots reduce blood pressure and thus makes the heart work harder

• Damage to the lining causes salt to leak through which increases the salinity. This reduces blood viscosity.

• Damaged blood vessels do not allow cholesterol to heal blood clots.

High blood sugar is a result of insulin being released into the body. How would high blood sugar become an issue?

• High blood sugar decreases blood viscosity, decreasing blood flow.

• High blood sugar decreases blood volume, increasing blood flow.

• High blood sugar increases blood viscosity, decreasing blood flow.

• High blood sugar increases blood volume, increasing blood flow.

Tags

NGSS.HS-LS1-3

A student's resting heart rate is 70 bpm. After running up and down the stairs, their heart rate is 155. Which statement best describes how this change affects the student's cardiovascular system?

• Thickness of the blood increases

• Blood flow through the body increases

• Blood pressure decresases

• Diameter of the blood vessels decreases

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