Respiratory 5

Question 1

Pulmonary circulation receives total output from ______ ventricle

Answer 1

Right

Question 2

What circulation is low-resistance and pressure?

Answer 2

Pulmonary

Question 3

What are pulmonary arteries, and veins which occur together with bronchi in a loose connective tissue sheath?

Answer 3

Extra-alveolar vessels

Question 4

What vessels serve as the first site of edema fluid accumulation?

Answer 4

Extra-alveolar vessels

Question 5

Changes in pulmonary vascular resistance at different lung volumes:
Extra-alveolar vessels narrows and alveolar capillaries distended = _____ resistance

Answer 5

Same

Question 6

Changes in pulmonary vascular resistance at different lung volumes:
Extra-alveolar vessels stretched and NO change in alveolar capillaries = ________ resistance

Answer 6

Decreased

Question 7

Changes in pulmonary vascular resistance at different lung volumes:
Alveolar capillaries flattened = extremely ________ resistance

Answer 7

Increased

Question 8

When reaching total lung capacity resistance _________ as the alveolar capillaries become more flattened

Answer 8

Increases

Question 9

Increased capacity during exercise is due to:
Recruitment of previously unperfused vessels
Smooth vascular muscle ________ during exercise so that small arteries and vein dilate

Answer 9

Relaxation

Question 10

In pulmonary circulation, ________ provide major portion of the resistance to blood flows second by arteries and arterioles, with little contribution from veins and venules

Answer 10

Capillaries

Question 11

In quadrupeds, blood flow is distribution is determined by the topographic situation of the ______, NOT gravity

Answer 11

Lung

Question 12

Blood flows more the ______dorsal regions and even more during exercise

Answer 12

Caudo

Question 13

Sympathetic innervation has:
Alpha 1 = vaso __________
Beta 2 = vaso_______

Answer 13

Constriction
Dilation

Question 14

Parasympathetic innervation:
ACh on M3 and through NANC (NO) = vaso________

Answer 14

Dilation

Question 15

What are animals with thicker muscle layers that = greater vascular response to hypoxia?

Answer 15

Cow and pigs

Question 16

What vasoCONSTRICTION occurs in response to disease conditions where PO2 is reduced?

Answer 16

Hypoxia pulmonary vasoconstriction

Question 17

What is the condition of collapsed alveoli = blood flow reduced?

Answer 17

Atelectasis

Question 18

What grazing conditions of cows can lead to hypoxia and right-sided heart failure at high altitudes?

Answer 18

Brisket disease

Question 19

What disease is animals does hypoxia lead to increase in pulmonary arterial pressure = increased workload to the right ventricle = right ventricular enlargement?

Answer 19

Heart worm disease

Question 20

What pulmonary circulation disease is seen in horses = cardiac output increases 6-8x = high left arterial pressure = hypertension = blood vessels dilate and eventually erupt?

Answer 20

Exercise-induces pulmonary hemorrhage