Question

In: Biology

3. Which of the following statements are accurate? A. Veins in the pulmonary circuit carry oxygen-rich...

3. Which of the following statements are accurate?

A. Veins in the pulmonary circuit carry oxygen-rich blood

B. Arteries in the pulmonary circuit deliver oxygen-rich blood to the body tissues.

C. All arteries carry blood away from the heart

D. Arteries in the pulmonary circuit deliver oxygen-poor blood to the lungs.

E. Veins in the systemic circuit return oxygen-poor blood to the heart.

4. Which of the following statements are accurate?

A. The heartbeat in a human heart is initiated by the atrioventricular mode.

B. During systole, the heart's ventricle(s) is/are relaxing and filling with blood.

C. During systole, blood will be pumped from the heart into the veins of the body

D. The pulse is used to determine one's heart rate.

E. The nervous system and certain hormones can alter pacemaker activity.

5. Which of the following statements are accurate?

A. Red blood cells are known as erythrocytes.

B. Hemoglobin would be found in white blood cells and functions in carrying oxygen in body tissues.

C. The liquid portion of the blood is known as the hematocrit.

D. Platelets are the only thing in the blood that contributes to blood clotting.

E. Lymphocytes are the only type of white blood cells and are immune cells

Expert Solution

3. Options A and D are correct. Veins in the pulmonary circuit carry oxygen-rich blood. The pulmonary veins bring oxygen-rich blood to the left atrium. Arteries in the pulmonary circuit deliver oxygen-poor blood to the lungs. The pulmonary artery channels oxygen-poor blood from the right ventricle into the lungs, where oxygen enters the bloodstream.

4. Both option D and E is right. The pulse is used to calculate the heartbeat. The calculated pulse is multiplied by 4 to calculate heartbeat. Both CNS and hormones alter pacemaker activity. To increase heart rate, the autonomic nervous system increases sympathetic outflow to the SA node, with concurrent inhibition of vagal tone. Norepinephrine released by sympathetic activation of the SA node binds to beta-adrenoceptors. This increases the rate of pacemaker.

5. Both option A and D is right. RBCs are called erythrocytes. Platelets are the only thing in the blood that contributed to blood clotting.

gladiator answered 6 months ago

Which statement about mammalian blood flow is NOT true? Select one: a. The pulmonary veins carry...

Which statement about mammalian blood flow is NOT true? Select one: a. The pulmonary veins carry oxygen rich blood from the lungs into left atrium. b. The right atrium receives oxygen poor blood from veins and contracts, forcing blood into the right ventricle. c. The left ventricle contracts and sends oxygenated blood into the aorta, which sends it to body tissues. d. The systemic circuit carries blood between heart and lungs; CO2 diffuses into blood from lungs and O2 diffuses...

Arteries of the pulmonary circuit: deliver oxygen to the pulmonary capillaries direct blood back to the...

Arteries of the pulmonary circuit: deliver oxygen to the pulmonary capillaries direct blood back to the heart from the lungs. surround the small air ockets called alveoli. carry deoxygenated blood to the lungs.

Which of the following statements is the least accurate?

Which of the following statements is the least accurate?a.Common types of contingent claim derivatives include options and modified versions of swaps, forward contracts and futures contracts.b.An option that gives the right to buy is referred to as a put; an option that gives the right to sell is referred to as a call.c.Asset-backed securities are examples of contingent claims.

3. Which of the following statements is NOT an explanation for how oxygen is released from...

3. Which of the following statements is NOT an explanation for how oxygen is released from oxy-haemoglobin. Select one: A. Carbon dioxide has a stronger affinity than oxygen to heme, and displaces oxygen in tissues. B. Formation of carbonic acid lowers the oxygen affinity of haemoglobin in tissues. C. The structure of deoxyhemoglobin is stabilized by the interaction with BPG. D. Salt bridges are formed with N-terminal carbamates in deoxyhemoglobin. E. Salt bridges are formed between acidic and basic side...

Which of the following statements about leadership is the most accurate?

Which of the following statements about leadership is the most accurate?A One trait of effective leaders is that they consistently maintain the same style of leadership.B Effective leaders use money as a prime motivator to change employee performance.C The most effective leaders build trust and reward outstanding performance.D The democratic style of leadership will almost always improve the effectiveness of the organization

Which of the following statements is the most accurate description of limited liability? A. In a...

Which of the following statements is the most accurate description of limited liability? A. In a company limited by shares, shareholder who holds a share in the company is not liable beyond any amount outstanding on partly paid shares. B. In a company limited by shares, a company has limited liability for their debts. C. A company is a separate legal entity from its directors, so directors are always shielded from the company's losses. D. A and B above. E....

Which of the following statements is FALSE? Pulmonary hypoplasia can be caused by a hernia Surfactant...

Which of the following statements is FALSE? Pulmonary hypoplasia can be caused by a hernia Surfactant is produced by Type 2 alveolar cells Premature birth is strongly associated with respiratory distress syndrome Tracheoesophageal fistulas are strongly associated with premature birth 2 points QUESTION 14 The _____________ becomes the urinary collecting duct. urethra metanephrogenic mesenchyme mesonephric duct ureteric bud 2 points QUESTION 15 During this stage of lung development, the respiratory diverticulum branches from the foregut. Pseudoglandular stage Canalicular...

Which of the following statements is the most accurate and complete summary of trends in income...

Which of the following statements is the most accurate and complete summary of trends in income inequality over the period 1950-2015, as presented in Unit 19? Question 12 options: Most of the inequality in the world results from inequality between countries, which is declining. Inequality between individuals in most countries is declining. Most of the inequality in the world results from inequality between countries, rather than inequality within countries. The net effect of trends in within-country and between-country inequality is...

6. Which of the following statements are accurate? A. In an average, healthy human, the partial...

6. Which of the following statements are accurate? A. In an average, healthy human, the partial pressure of carbon dioxide is usually higher in the blood in systemic veins than the alveoli B. In an average, healthy human, the partial pressure of oxygen is usually higher in the systemic veins than the alveoli C. In average, healthy human, the partial pressure of oxygen is usually higher in the systemic arteries than in the body tissues D. Generally speaking, gases will...

Which one of the following statements is correct (true)? When a company is cash rich, a...

Which one of the following statements is correct (true)? When a company is cash rich, a project with a short payback period but a low rate of return may be preferred to a project with a long payback period and a high rate of return. The required rate of return is the maximum rate of return that an investment project must yield to the acceptable. In preference decisions, the profitability index and internal rate of return methods may rank projects...