time to transfer #1

Question 1

what is asthma?

Answer 1

a condition that reduces the flow of air into and out of his lungs due to inflammation and constriction of his bronchioles

Question 2

true or false: current has an indirect relationship with voltage

Answer 2

fasle: direct

Question 3

what is current (I) measured by?

Answer 3

amps

Question 4

what is Ohm’s law for electricity and fluid??

Answer 4

I = ΔV/R
flow = ΔP/R

Question 5

electrical current flowing from the power source (e.g., battery) through the circuit ___________ substantially when the resistance is high

Answer 5

decreases

Question 6

current _________ when resistance in the circuit is small, as occurred when the diameter of the wire was large.

Answer 6

increases

Question 7

what is ΔP along the respiratory tract analogous to?

Answer 7

ΔV in an electrical current

Question 8

what is restinance (R) to airflow within the respiratory tract analogous to?

Answer 8

resistance in electrical circuit

Question 9

how can the relationship among airflow (F), the pressure gradient and resistance can be summarized by?

Answer 9

F = ΔP/R, just like the I = ΔV/R relationship for the electrical current

Question 10

describe how your brother’s airflow is affected by the resistance in his airway

Answer 10

inversely; his airflow decreases when there is more resistance, which is when he wheezes, while his airflow increases as the resistance decreases after the medication has dilated his bronchioles

Question 11

what happens to the bronchioles during an asthmatic crisis?

Answer 11

his bronchioles constrict and inflammatory mucus accumulates within them. Collectively, these increase resistance which decreases his airflow.

Question 12

what is the flow of fluid (F) directly related to?

Answer 12

change in pressure

Question 13

what is F inversely related to?

Answer 13

resistance

Question 14

the right coronary artery splits into two branches, one of those being the posterior descending artery. what is the function of it?

Answer 14

provides arterial blood to the muscular walls of the right side of the heart

Question 15

The right side of the heart pumps ________________ blood returning from the body to the lungs, where it becomes oxygenated.

Answer 15

deoxygenated

Question 16

what does the left coronary artery split into?

Answer 16

left anterior descending artery and the circumflex artery

Question 17

what is the purpose of the circumflex artery?

Answer 17

supplies part of the left side of the heart

Question 18

what is the purpose of the left anterior descending artery?

Answer 18

supplies the rest of the heart

Question 19

what is the function of the left ventricle?

Answer 19

deliver oxygenated blood to the body

Question 20

what causes heart attack?

Answer 20

abrupt occlusion of the left anterior descending artery results in loss of blood supply to much of the left side of the heart

Question 21

what is atherosclerosis?

Answer 21

build up of plaque on the inside of his arteries that narrows the lumen of the vessel. These plaques increase the resistance to the flow of blood in affected arteries, which decreases the flow of blood to the heart muscle.

Question 22

the flow of blood is directly related to what and inversely related to what?

Answer 22

change in pressure
resistance within the vessel