Characteristics of Sinusoids and Anastomoses

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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?

Conical (D) Signup and view all the answers

What is unique about the connection in arteriovenous anastomosis?

It does not involve capillaries (C) Signup and view all the answers

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

To separate between heart features (C) Signup and view all the answers

How many atrium and ventricle are present in the heart?

2 atrium and 2 ventricle (B) Signup and view all the answers

What supplies blood to the heart?

Right and left coronary arteries (A) Signup and view all the answers

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

Left atrium (D) Signup and view all the answers

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

Arteries -> arterioles -> capillary meshwork -> venules -> veins (D) Signup and view all the answers

What is the final destination of the coronary sinus?

Right atrium (C) Signup and view all the answers

Where are extremely thin-walled structures prominently found?

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

What is the main function of anastomoses?

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

Collaterally circulating blood flow is beneficial in what condition?

Obstruction of large arteries (C) Signup and view all the answers

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

Liver and spleen (B) Signup and view all the answers

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

Anastomoses (C) Signup and view all the answers

In which direction is the base of the heart directed?

Upwards and to the right (D) Signup and view all the answers

What is the outer covering of the heart called?

Pericardium (B) Signup and view all the answers

In which cavity of the body is the heart located?

Thoracic cavity (A) Signup and view all the answers

How is the heart positioned in relation to the lungs?

Between the two lungs (B) Signup and view all the answers

In which direction is the apex of the heart directed?

Downwards and to the left (C) Signup and view all the answers

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

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

Which surface of the heart rests on the diaphragm?

Diaphragmatic (B) Signup and view all the answers

What forms the apex of the heart?

Left ventricle (A) Signup and view all the answers

Which structure is found in the sternocostal anterior atrial area?

Right auricle (B) Signup and view all the answers

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

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