Lab 3: Cardiovascular Physiology

Question 1

Define BRADYCARDIA

Answer 1

HR less than 60 bpm

Question 2

Define TACHYCARDIA

Answer 2

HR more than 100 bpm

Question 3

When is the best time to take resting HR?

Answer 3

Right when you wake up

Question 4

What effect does the SYMPATHETIC NS (NE) have on HR?

Answer 4

Inc. HR because NE binds to B1 receptors

Question 5

What effect does the PARASYMPATHETIC NS (Ach) have on HR?

Answer 5

Dec. HR because Ach binds to M2 receptors

Question 6

What effect does caffeine have on HR?

Answer 6

Inc. because caffeine in high doses raises your blood level of epinephrine

Question 7

What effect does Codeine have on HR?

Answer 7

Dec. because it is a depressant drug so it slows down HR

Question 8

What effect does Nicotine have on HR?

Answer 8

Inc. because… I don’t know… it just does

Question 9

What effect does ANEMIA have on HR?

Answer 9

Inc. because the HEART is trying to compensate for the lack of blood

Question 10

What effect does Hypothyroidism have on HR?

Answer 10

Dec. because the reduced level of thyroid hormone causes the heart muscle to pump less vigorously and eventually to become weakened

Question 11

What are some factors that might cause a person’s BP to be elevated?

Answer 11

Stress, exercise, sitting vs standing, circadium rhythm

Question 12

Define HYPERTENSION

Answer 12

High BP

Question 13

What is primary HYPERTENSION?

Answer 13

High BP with no identifiable cause (lifestyle)

Question 14

What is secondary HYPERTENSION?

Answer 14

High BP with an identifiable cause (disease)

Question 15

2 things contributing to HYPERTENSION are…

Answer 15

…unhealthy diet and inactivity