Set 18 - Organ Systems - The Circulatory System

celine's version from 2018-03-17 18:46

Section 1

Question Answer
The _________ transports oxygen from the lungs and nutrients absorbed from the digestive tract to all the cells of the body. It also carries away wastes produced by the biochemical processes within these cells.circulatory system
The circulatory system consists of the _________, _________, _________, and _________.heart, arteries, veins, and tiny capillaries
arterieswhich carry blood away from the heart
veinswhich carry blood toward the heart
tiny capillarieswhich allow substances to pass between the blood and individual cells
Blood may be _________, as when it returns from the lungs, or _________, as when it returns from the capillaries that feed the body’s tissues.oxygenated, deoxygenated
Capillaries from the lungs merge to form the _________ to the heart, which then pumps the oxygen-rich blood throughout the body.pulmonary veins
The heart is divided into four chambers: the left and right atria (top) and the left and right ventricles (bottom).
The right and left sides of the heart are divided by a _________ (wall), and make up two different circuits: _________ (right) and _________ (left).septum, pulmonary (right) and systemic (left).
The pulmonary circuit collects deoxygenated blood from the two major veins called _________. The heart pumps this blood via the pulmonary arteries to the lungs.venae cavae
The _________ collects newly oxygenated blood from the pulmonary veins and pumps it via the aorta to the tissues of the body.systemic circulation
The aorta branches into smaller arteries, vessels, and capillaries. Oxygen passes through the capillary walls into cells, and waste compounds pass into the capillary blood. They are transported back to the heart as the capillaries merge to form larger vessels and veins, which form the _________ leading into the heart.venae cavae
Blood cycles through the body from the lungs, to the _________, _________, _________, _________, _________, _________, _________, and back to the lungs.left atrium, left ventricle, aorta, body tissues, venae cavae, right atrium, right ventricle

Section 2

Question Answer
The simplest invertebrates—sponges and cnidarians—lack a _________. Solutes simply diffuse the short distances through cells.circulatory system
Arthropods and some mollusks have _________, in which a tubular heart pumps a fluid called _________ into sinuses, or spaces, that contain the circulatory systems, hemolymph
Annelids and other animals (including vertebrates, squids, and octopuses) have the _________. This type of system involves one or more hearts pumping blood through vessels. Although materials are exchanged between the blood and the cells, the blood does not directly contact the cells.closed circulatory systems
Organisms with faster metabolisms have _________, in which higher pressure facilitates the exchange of materials.closed circulatory systems

Section 3

Question Answer
Which of these carries deoxygenated blood? I. Pulmonary veins II. Anterior vena cava III. Pulmonary arteriesII. Anterior vena cava & III. Pulmonary arteries. The anterior and posterior venae cavae return blood to the heart after it has traveled to the tissues of the body. Because the blood has supplied oxygen to cells, it is deoxygenated. The heart pumps this deoxygenated blood to the lungs through the pulmonary arteries. It picks up oxygen and returns to the heart via the pulmonary veins.
What sequence is followed by the path of blood from the heart?Vena cava, right atrium, right ventricle, lungs, pulmonary vein. Deoxygenated blood collects in the vena cava, which feeds into the right atrium of the heart. Blood from the right atrium enters the right ventricle, where it is pumped to the lungs via the pulmonary arteries. Oxygen-rich blood returns to the heart via the pulmonary veins.