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What is the finger pulse transducer registering in creating a heartbeat wave pattern? Choose the correct answer.

a) an electrocardiogram

b) the amount of blood flow

c) the amount of oxygen in the blood

d) the pressure wave moving through the blood vessels.

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Nelly Stracke
Nelly StrackeLv2
28 Sep 2019

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Related questions

1. The fish heart is a modified tube with _____________chambers arrayed one after the other.

2. The ____________ cycle consists of systole and diastole.

3. The spontaneous depolarization of cells in the ________________ passes through the left and right atria as a wave to finally cause the contraction of the heart.

4. ____________ is fluid formed from blood plasma minus the larger proteins.

5. A weakened section of an artery is known as a(n) ___________

6. The ________ is the amount of blood pumped by the heart each minute.

7._________ are subcellular packets of clotting enzymes.

8.________________ are basically packets of hemoglobin.

9. A normal value for blood pressure should be about

Answer: ______________________.

10. Veins contain _______________that assist in the movement of blood back to the heart.

11. The ______________delays the contraction of the ventricles to allow them to fill with blood.

12. During the cardiac cycle, contraction is called _____________and relaxation is called ___________.

13. The ________________ is the tough sac of connective tissue around the heart.

14. ___________________results when the blood's ability to carry oxygen is decreased.

True of False: Freshwater environments have a higher concentration of oxygen than saltwater environments.

QUESTION 2 If the difference in partial pressure of gas on either side of the barrier to diffusion is 0, which of these events will occur?

The area for gas exchange will increase to accommodate this similarity.

The constant for diffusion will decrease.

The rate of diffusion will be 0.

The distance thickness of the barrier to diffusion will also be 0.

QUESTION 3 On the x-axis of the oxygen–hemoglobin equilibrium curve is the partial pressure of oxygen in tissues. Which type of blood is most likely to be represented by the right-hand side of the axis? (Hint: the oxygen-hemoglobin equilibrium curve is figure 45.14 in your book on pg 913)

blood found in the left ventricle

blood found in the right atrium

blood found in the superior vena cava

blood found in the inferior vena cava

QUESTION 4 Which of these is an example of pulmonary circulation?

Blood is pumped from the right ventricle to the lungs.

Blood is pumped from the left ventricle to the aorta.

Blood is pumped from the aorta to the cardiac vein.

Blood is pumped from the inferior vena cava to the right atrium.

QUESTION 5 O2 will diffuse from blood to tissue faster in response to which of the following conditions?

an increase in the PO2 of the tissue

a decrease in the PO2 of the tissue

an increase in the thickness of the capillary wall

a decrease in the surface area of the capillary

QUESTION 6 Which of the following promotes oxygen release from hemoglobin?

a decrease in temperature

a decrease in carbon dioxide levels

a decrease in pH

a decrease in carbonic anhydrase

QUESTION 7 How does the medulla oblongata sense the amount of carbon dioxide in the blood?

A. Carbonic anhydrase produced by cells performing cellular respiration is exported and travels though the blood, and binds to a receptor on the medullary respiratory center, which causes a signal amplification resulting in a change in gene expression which results in the production of proteins that will cause the diaphragm to contract

B. CO2 produced by cells performing cellular respiration reacts with blood plasma for form an acid, which increases the pH of the blood, which causes the medullary respiratory center to contract the diaphragm

C. CO2 produced by cells performing cellular respiration reacts with blood plasma for form an acid, which decreases the pH of the blood, which causes the medullary respiratory center to contract the diaphragm

D. A and B

E. A and C

QUESTION 8 Which of the following parts of the lung are considered "dead space"? A. The alveoli B. The trachea C. The bronchi D. B and C E. All of the above

QUESTION 9 Which of the following blood vessels have the thinnest walls?

arteries

arterioles

capillaries

venules

veins

QUESTION 10 How does the interstitial fluid return to the bloodstream?

A. Interstitial fluid flows into the capillary where the osmotic pressure driving fluid into the bloodstream is greater than the blood pressure driving fluid out of the blood

B. Interstitial fluid flows into the capillary where the blood pressure driving fluid into the bloodstream is greater than the osmotic pressure driving fluid out of the blood

C. Interstitial fluid leaves the tissue via lymphatic ducts and travels through the lymphatic system, which returns the fluid to the veins. D. A and C

E. B and C

QUESTION 11 True or False: When an electrocardiogram (EKG or ECG) shows a flat line (aka asystole), medical personnel will restart the heart using a defibrillator.

Which of the following is correct?

Question 8 options:

A)

The partial pressure of oxygen in systemic venous blood is normally 40 mm Hg.
B)

The partial pressure of carbon dioxide in systemic venous blood is normally 40 mm Hg.
C)

The partial pressure of oxygen is normally lower in the alveoli than in systemic arterial blood.
D)

The partial pressure of carbon dioxide is normally higher in the alveoli than in systemic arterial blood.
E)

The partial pressures of carbon dioxide in the alveoli and pulmonary arterial blood are the same.

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