Blood Vessels 2

Question 1

What are vasoconstriction and vasodialation

Answer 1

Shunting of blood

Question 2

What is short term control of BP regulated by

Answer 2

ANS and hormones

Question 3

What must the body maintain

Answer 3

Blood flow

Question 4

What is blood flow

Answer 4

Change in pressure/resistance

Question 5

Where does all BP come from

Answer 5

The heart

Question 6

What is the immediate BP regulation

Answer 6

Occurs in seconds- nervous

Question 7

What is the short term BP regulation

Answer 7

Occurs in minutes-endocrine(amino acid based)

Question 8

What is the long term regulation of BP

Answer 8

Occurs in hours or days-endocrine(steroids)

Question 9

What is the goal of sympathetic regulation of BP

Answer 9

Get more blood downstream

Question 10

What occurs during sympathetic BP regulation

Answer 10

Vasoconstriction: smooth muscle contracts, diameter decreases to push blood to body tissues
Heart rate increases

Question 11

Where are elastic arteries found

Answer 11

Close to the heart

Question 12

What does vasoconstriction in elastic arteries maintain

Answer 12

The same diameter to push blood downstream

Question 13

What occurs during parasympathetic regulation of BP

Answer 13

Heart rate decreases

Vasodialate: less blood coming in, bigger diameter to maintain flow

Question 14

What amino acid based hormones help short term BP with vasoconstriction

Answer 14

Epinephrine, endothelin made by endothelium, angiotensin 2 in kidney section

Question 15

What amino acid based hormones help short term BP vasodialate

Answer 15

Nitric oxide and histamine

Question 16

What is the function of long term regulation of BP

Answer 16

Adjusting blood volume in the body(renal)

Question 17

What happens during long term regulation of BP

Answer 17

Blood pressure increases by increasing blood volume by increasing body H2O volume

Question 18

Why are arteries full of blood all the time

Answer 18

To maintain flow

Question 19

How does the amount of water correspond to BP

Answer 19

Lower water level=lower BP

higher water level=higher BP

Question 20

Long term medications to decrease BP

Answer 20

Diuretics(urinate more)

Question 21

Is low BP usually good

Answer 21

Yes as long as not passing out

Question 22

What retains body water

Answer 22

Sodium(osmosis)

Question 23

What is a medical emergency classified by a major decrease in blood pressure and flow

Answer 23

Circulatory shock

Question 24

What happens during circulatory shock

Answer 24

Blood level no longer fills up the vessel

Question 25

Reduced volume of blood in the body | Not enough blood to adequately fill vessel and maintain BP

Answer 25

Hypovolemic

Question 26

What causes hypovolemic shock

Answer 26

Massive blood loss

Question 27

Massive systemic vasodialation Vessels change size Amount of blood can no longer fill up larger sized vessel

Answer 27

Vascular shock

Question 28

What is an example of vascular shock

Answer 28

Severe allergic reaction(not localized and becomes systemic)

Question 29

What is the anecdote to a severe allergic reaction(histamine)

Answer 29

Epinephrine

Question 30

This is classified as high blood pressure and occurs in response to increased resistance in the circulatory system

Answer 30

Hypertension

Question 31

What happens due to hypertension

Answer 31

Heart has to beat harder

Question 32

What is high blood pressure

Answer 32

140/90

Question 33

What is normal blood pressure

Answer 33

120/80

Question 34

What can cause hypertension

Answer 34

Atherosclerosis, chronic stress, smoking(increases platelet stickiness),increased hematocrit (increases viscosity)