Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Question
a. Only between cardiac cycles
b. Ventricular diastole
c. Ventricular systole
d. Throughout the cardiac cycle
Transcribed Image Text:The image illustrates the anatomy of the thoracic region, specifically highlighting the heart and associated blood vessels within the rib cage. The heart is shown in a realistic depiction with visible arteries and veins. The major blood vessels are colored for emphasis:
1. **Heart Positioning**: Located centrally within the ribcage, with its apex pointing slightly towards the left side of the body.
2. **Vessel Coloration**: Vessels are highlighted in blue and red for clarity. The blue vessels indicate veins that carry deoxygenated blood towards the heart, while the red represents arteries (not actively shown here, but generally the convention) that transport oxygenated blood away from the heart.
3. **Directional Arrows**: Arrows on the blue vessels indicate the direction of blood flow towards the heart. The blue vessel extending vertically in the image likely represents the superior and inferior vena cava, which are responsible for channeling deoxygenated blood from the body back to the heart.
**Educational Note**: The statement accompanying the image reads, "Blood flows through the vessels references in the above image during:" which may imply an activity related to tracing blood flow during circulation, such as during the cardiac cycle's diastole or systole phases.
This illustration serves as a guide for understanding how the heart functions within the context of human anatomy, and how blood circulates through the major thoracic vessels.
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