Characteristics of Sinusoids and Anastomoses
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Questions and Answers

What is the definition of arteriovenous anastomosis?

  • A direct connection between arteries and veins (correct)
  • An indirect connection between arteries and capillaries
  • A connection between arteries and capillaries
  • A connection between capillaries and veins

What is the primary function of the heart?

  • Pumping blood to the body (correct)
  • Regulating body temperature
  • Storing oxygen for the body
  • Pumping blood to the brain

How much does the heart typically weigh?

  • 400g
  • 100g
  • 200g
  • 300g (correct)

What is the shape of the heart?

<p>Conical (D)</p> Signup and view all the answers

What is unique about the connection in arteriovenous anastomosis?

<p>It does not involve capillaries (C)</p> Signup and view all the answers

What is the main function of the sulcus in the heart?

<p>To separate between heart features (C)</p> Signup and view all the answers

How many atrium and ventricle are present in the heart?

<p>2 atrium and 2 ventricle (B)</p> Signup and view all the answers

What supplies blood to the heart?

<p>Right and left coronary arteries (A)</p> Signup and view all the answers

What is the final destination of the blood from the capillaries in the pulmonary circulation?

<p>Left atrium (D)</p> Signup and view all the answers

What is the pathway of blood from the body in the systemic circulation?

<p>Arteries -&gt; arterioles -&gt; capillary meshwork -&gt; venules -&gt; veins (D)</p> Signup and view all the answers

What is the final destination of the coronary sinus?

<p>Right atrium (C)</p> Signup and view all the answers

Where are extremely thin-walled structures prominently found?

<p>Liver, spleen, bone marrow, and endocrine glands (D)</p> Signup and view all the answers

What is the main function of anastomoses?

<p>To join branches of arteries and offer collateral circulation (D)</p> Signup and view all the answers

Collaterally circulating blood flow is beneficial in what condition?

<p>Obstruction of large arteries (C)</p> Signup and view all the answers

Which organs typically require rapid exchange facilitated by thin-walled structures?

<p>Liver and spleen (B)</p> Signup and view all the answers

What term is used to describe the joining of arterial branches?

<p>Anastomoses (C)</p> Signup and view all the answers

In which direction is the base of the heart directed?

<p>Upwards and to the right (D)</p> Signup and view all the answers

What is the outer covering of the heart called?

<p>Pericardium (B)</p> Signup and view all the answers

In which cavity of the body is the heart located?

<p>Thoracic cavity (A)</p> Signup and view all the answers

How is the heart positioned in relation to the lungs?

<p>Between the two lungs (B)</p> Signup and view all the answers

In which direction is the apex of the heart directed?

<p>Downwards and to the left (C)</p> Signup and view all the answers

What proportion of the anterior ventricular area is made up of the right ventricle?

<p>2/3 (C)</p> Signup and view all the answers

Which surface of the heart rests on the diaphragm?

<p>Diaphragmatic (B)</p> Signup and view all the answers

What forms the apex of the heart?

<p>Left ventricle (A)</p> Signup and view all the answers

Which structure is found in the sternocostal anterior atrial area?

<p>Right auricle (B)</p> Signup and view all the answers

What proportion of the diaphragmatic ventricular area is made up by the left ventricle?

<p>2/3 (A)</p> Signup and view all the answers

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