Textbook Question
The heart is surrounded by the:
(a) Pleural cavity
(b) Peritoneal cavity
(c) Abdominopelvic cavity
(d) Mediastinum
(e) Abdominal cavity
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Ch. 20 The Heart
Martini, Nath, Bartholomew11th EditionFundamentals of Anatomy & PhysiologyISBN: 9780136874089
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Table of contents
- Ch. 1 An Introduction to Anatomy and Physiology26
- Ch. 2 The Chemical Level of Organization34
- Ch. 3 The Cellular Level of Organization30
- Ch. 4 The Tissue Level of Organization24
- Ch. 5 The Integumentary System17
- Ch. 6 Bones and Bone Structure36
- Ch. 7 The Axial Skeleton11
- Ch. 8 The Appendicular Skeleton17
- Ch. 9 Joints13
- Ch. 10 Muscle Tissue12
- Ch. 11 The Muscular System28
- Ch. 12 Nervous Tissue18
- Ch. 13 The Spinal Cord, Spinal Nerves, and Spinal Reflexes22
- Ch. 14 The Brain and Cranial Nerves20
- Ch. 15 Sensory Pathways and the Somatic Nervous System17
- Ch. 16 The Autonomic Nervous System and Higher-Order Functions30
- Ch. 17 The Special Senses16
- Ch. 18 The Endocrine System20
- Ch. 19 Blood31
- Ch. 20 The Heart31
- Ch. 21 Blood Vessels and Circulation29
- Ch. 22 The Lymphatic System and Immunity31
- Ch. 23 The Respiratory System12
- Ch. 24 The Digestive System18
- Ch. 26 The Urinary System31
- Ch. 27 Fluids & Electrolytes32
- Ch. 28 The Reproductive System12
- Ch. 29 Development and Inheritance23
Martini, Nath, Bartholomew11th EditionFundamentals of Anatomy & PhysiologyISBN: 9780136874089Not the one you use?Change textbook
Chapter 20, Problem 8
Identify the superficial structures in the following diagram of the heart.
a. ___
b. ___
c. ___
d. ___
e. ___
f. ___
g. ___
h. ___
Verified step by step guidance1
Step 1: Understand that superficial structures of the heart refer to the external anatomical features visible on the heart's surface, such as major vessels, grooves, and chambers.
Step 2: Identify the major external vessels typically labeled in heart diagrams, including the aorta, pulmonary trunk, superior vena cava, and inferior vena cava.
Step 3: Locate the coronary sulcus (atrioventricular groove) and the anterior interventricular sulcus, which are grooves on the heart's surface marking boundaries between chambers.
Step 4: Recognize the visible chambers on the heart's surface, such as the right atrium, right ventricle, left atrium, and left ventricle, based on their position relative to the grooves and vessels.
Step 5: Match each label (a through h) to these superficial structures by comparing their position on the diagram to the known anatomical landmarks and vessels described.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Anatomy of the Heart's Superficial Structures
Superficial structures of the heart refer to the external features visible on its surface, such as the atria, ventricles, coronary sulcus, and major blood vessels. Recognizing these helps in identifying parts labeled in diagrams and understanding heart function and blood flow.
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Control of Heart Rate
Coronary Sulcus and Interventricular Sulci
The coronary sulcus is a groove separating the atria from the ventricles, while the anterior and posterior interventricular sulci separate the left and right ventricles. These sulci contain important blood vessels and are key landmarks in heart surface anatomy.
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Major Blood Vessels Associated with the Heart
The aorta, pulmonary trunk, superior and inferior vena cava, and pulmonary veins are major vessels connected to the heart's surface. Identifying these vessels is essential for understanding the heart’s role in systemic and pulmonary circulation.
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Related Practice
Textbook Question
Identify the structures in the following diagram of a sectional view of the heart.
a. ___
b. ___
c. ___
d. ___
e. ___
f. ___
g. ___
h. ___
i. ___
j. ___
k. ___
l. ___
m. ___
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Textbook Question
During diastole, a chamber of the heart:
(a) Relaxes and fills with blood
(b) Contracts and pushes blood into an adjacent chamber
(c) Experiences a sharp increase in pressure
(d) Reaches a pressure of approximately 120 mm Hg
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Textbook Question
Cardiac output is equal to the:
(a) Difference between the end-diastolic volume and the end-systolic volume
(b) Product of heart rate and stroke volume
(c) Difference between the stroke volume at rest and the stroke volume during exercise
(d) Stroke volume less the end-systolic volume
(e) Product of heart rate and blood pressure
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Textbook Question
During the cardiac cycle, the amount of blood ejected from the left ventricle when the semilunar valve opens is the:
(a) Stroke volume (SV)
(b) End-diastolic volume (EDV)
(c) End-systolic volume (ESV)
(d) Cardiac output (CO)
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Textbook Question
The cardiac skeleton of the heart has which two of the following functions?
(a) It physically isolates the muscle fibers of the atria from those of the ventricles.
(b) It maintains the normal shape of the heart.
(c) It helps distribute the forces of cardiac contraction.
(d) It allows more rapid contraction of the ventricles.
(e) It strengthens and helps prevent overexpansion of the heart.
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