Circulatory System and Blood Components Quiz

The functions of the circulatory system include circulating necessary materials (O2, nutrients), removing waste products (CO2), regulating body temperature, and carrying materials such as hormones and antibodies to various organs. Additionally, it facilitates clotting at the site of a wound to minimize blood loss.

Hemoglobin, an iron-containing molecule, allows the red blood cell to bind to oxygen molecules, enabling the transportation of oxygen throughout the body.

Mature red blood cells lack a nucleus to provide more space for hemoglobin, allowing them to carry more oxygen and carbon dioxide. This absence of a nucleus also contributes to their flexible and biconcave shape.

<p>The three general components of circulatory systems are fluid (blood) for transporting/circulating materials, a network of blood vessels for fluid movement, and a pump (heart) that pushes the fluid through the blood vessels.</p> Signup and view all the answers

<p>The circulatory system carries essential materials such as oxygen, nutrients, carbon dioxide, hormones, and antibodies to various organs in the body.</p> Signup and view all the answers

<p>systemic circulation or circuit, and pulmonary circulation or circuit.</p> Signup and view all the answers

<p>The circulatory system is closed in vertebrates, meaning the blood never leaves the network of blood vessels, while invertebrates such as arthropods have an open circulatory system.</p> Signup and view all the answers

<p>The cardiovascular system consists of the heart and blood vessels (from Greek kardia meaning heart, and from Latin vascula meaning vessels).</p> Signup and view all the answers

<p>The great vessels of the heart include large elastic arteries, large veins, other arteries, smaller arterioles, capillaries that join with venules (small veins), and other veins.</p> Signup and view all the answers

<p>Some sources use the terms cardiovascular system and vascular system interchangeably with the circulatory system.</p> Signup and view all the answers

<p>systemic circulation and pulmonary circulation</p> Signup and view all the answers

<p>heart and vessels</p> Signup and view all the answers

<p>large elastic arteries and large veins</p> Signup and view all the answers

<p>closed</p> Signup and view all the answers

<p>Yes</p> Signup and view all the answers