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BIOM 3200 Final: Check your Understanding Unit 5

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pinkcheetah941
19 Dec 2017
School
University of Guelph
Department
Biomedical Sciences
Course
BIOM 3200
Professor
Laura Fauvetta

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Document Summary

Describe the pulmonary and systemic circuits of the mammalian cardiovascular system. Pulmonary circulatory system: circuit that delivers deoxygenated blood to the lungs for gas exchange and returns oxygenated blood back to heart. Systemic circulatory system: circuit that delivers oxygenated blood to all organ systems and body tissues for cellular respirations and returns deoxygenated blood to the heart. (ch. Identify major vessels of the heart including: aorta, pulmonary trunk, pulmonary arteries, pulmonary veins, superior vena cava and inferior vena cava. Aorta: large, elastic artery that originates from the left ventricle and distributes blood to smaller arteries throughout the body. Pulmonary trunk: carries blood from the right ventricle to the pulmonary arteries. Pulmonary arteries: the right and left pulmonary artery receives blood from the pulmonary trunk and distributes it to the right and left lung, respectively. Pulmonary veins: the right and left pulmonary vein will carry freshly oxygenated blood back the left atrium.

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Related Questions

Please help me answer this multiple choice questions: (please answer all questions)

No explantion needed just the answer needed.

physiology and neurobiology questions below.

31. Systemic arterioles dilate in response to _____.

A. Increased CO2 levels in the tissue

B. Decreased O2 levels in the tissue

C. Decreased pH in the tissues

D. All of the above

32. Blood in the pulmonary arteries ______

A. Contains hemoglobin which is about 98.5% saturated with oxygen

B. Has a PO2 of about 40 mmHg

C. Both of the above

D. Neither of the above

33. Completion of first meiotic division of oogenesis yields.

A. One secondary oocyte

B. Four primary oocyte

C. Four mature ova (egg cells)

D. Four secondary oocytes

34. The final absorbable products of chemical digestion occurring in the brush border of the small

intestine include:

A. Monosaccharides and amino acids

B. Proteins and chylomicrons

C. Disaccharides and amino acids

D. Monosaccharides and disaccharides

35. The hemoglobin oxygen curve saturation curve plots ____ on the dependent (Y) axis and ____

on the independent (X) axis.

A. Oxygen concentration; hemoglobin concentration

B. % oxygen saturation of hemoglobin; PO2 of blood

C. % oxygen saturation of hemoglobin; PCO2 of blood

D. Hemoglobin concentration; oxygen concentration

36. In contrast to the female hypothalamic pituitary-sex steroid axis, control of the male axis is

aimed at ____.

A. Allowing spermatogenesis to occur just once a month

B. Keeping levels of pituitary gonadotropins relatively constant in blood

C. Keeping levels of hypothalamic releasing hormones higher than usual in blood

D. Causing a positive feedback effect of sex steroid up on gonadotropins

37. Which of the following will correct acidosis?

A. Speed up the proton pump

B. Buffering of protons with phosphate in the tubular lumen

C. Renal metabolism of glutamine

D. All of the above

38. Epithelium with a brush border (microvilli) is characteristics of the mucosa found in

A. Duodenum

B. Proximal Tubule

C. Both of the above

D. Neither of the above

39. The transport maximum (Tm) for glucose, addition filtered glucose

A. Is no longer filtered

B. Appears in urine

C. Is secreted

D. Is reabsorbed

40. Stroke volume is equal to ____.

A. End-diastolic volume alone

B. End-diastolic volume plus end-systolic volume

C. Cardiac output minus heart rate

D. End-diastolic volume minus end-systolic volume

41. The long term solution to a change in blood pH involves

A. Digestive System

B. Respiratory System

C. Buffers such as hemoglobin

D. Renal System

42. The left heart receives blood from ___ and pumps blood out through the ____.

A. Superior vena cava; pulmonary trunk

B. Pulmonary veins, pulmonary trunk

C. Pulmonary veins; aorta

D. Pulmonary arteries; aorta

43. Selection and activation of specific B lymphocytes may lead to all EXCEPT_____.

A. Formation of memory cells

B. Secretions of antibodies

C. Activation of complements to destroy tagged antigen

D. Secretion of perforin

44. Bile is stored and released into the duodenum from the

A. Liver

B. Pancreas

C. Gall Bladder

D. Duodenum

45. Beta oxidation of fatty acids yields _____,which then can be further oxidized to produces ATP.

A. Glycogen

B. Amino acids

C. Keto acids

D. Acetyl CoA

46. The relationship between the loop of Henle and the vasa recta capillaries function.

A. Absorption of glucose, amino acids and creatinine

B. Countercurrent exchange

C. Countercurrent multiplication

D. All of the above

47. Anterior pituitary production of Follicle Stimulating Hormone (FSH) is decreased by

A. Testosterone from Sertoli cells

B. Inhibin from Sertoli cells

C. Inhibin from interstitial (Leydig) cells

D. Luteinizing Hormone (LH) from granulosa cells

48. A response to acidosis would involve

A. Slowing down the proton pump

B. Greatly increased excretion of HCO3- (bicarbonate ions)

C. Both of the above

D. Neither of the above

49. The conversion of spermatid to spermatozoa occurs

A. By differentiation process in the seminiferous tubule

B. In epididymis

C. By meiosis, in the seminiferous tubule

D. In the prostate gland

50. Antibody-mediated immunity defends against ____.

A. Virus infected cells

B. Viruses and bacteria in the blood or body fluids

C. Bacteria only

D. Viruses only

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.