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Ch. 20 The Heart
Martini - Fundamentals of Anatomy & Physiology 11th Edition
Martini, Nath, Bartholomew11th EditionFundamentals of Anatomy & PhysiologyISBN: 9780136874089당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Martini, Nath, Bartholomew 11th EditionCh. 20 The Heart문제 5
20장, 문제 5

The heart is surrounded by the:
(a) Pleural cavity
(b) Peritoneal cavity
(c) Abdominopelvic cavity
(d) Mediastinum
(e) Abdominal cavity

검증된 단계별 안내
1
Step 1: Understand the anatomical location of the heart within the thoracic cavity. The heart is located centrally in the chest, between the lungs.
Step 2: Identify the specific space or compartment that contains the heart. The heart is enclosed within a region called the mediastinum, which is the central compartment of the thoracic cavity.
Step 3: Differentiate the mediastinum from other cavities listed: the pleural cavity surrounds the lungs, the peritoneal cavity is within the abdomen, the abdominopelvic cavity includes the abdominal and pelvic regions, and the abdominal cavity is part of the abdominopelvic cavity.
Step 4: Recognize that the mediastinum contains the heart, thymus, parts of the esophagus and trachea, and major blood vessels, making it the correct answer for the cavity surrounding the heart.
Step 5: Conclude that the heart is surrounded by the mediastinum, which is distinct from the pleural, peritoneal, abdominopelvic, and abdominal cavities.

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Mediastinum

The mediastinum is the central compartment of the thoracic cavity, located between the lungs. It contains the heart, trachea, esophagus, and major blood vessels, providing a protective space for these vital structures.
추천 영상:
2:51
Organization of the Thoracic Cavity

Pleural Cavity

The pleural cavity is the potential space between the two layers of pleura surrounding each lung. It contains a small amount of lubricating fluid but does not enclose the heart.
추천 영상:
4:01
Pressure in the Lungs and Pleural Cavity Example 2

Peritoneal and Abdominopelvic Cavities

The peritoneal cavity is the space within the abdomen that houses abdominal organs, lined by the peritoneum. The abdominopelvic cavity includes both the abdominal and pelvic cavities, neither of which contain the heart.
추천 영상:
5:46
Organization of the Abdominopelvic Cavity
관련 실천
교과서 질문

The simple squamous epithelium covering the heart valves is the:

(a) Epicardium

(b) Endocardium

(c) Myocardium

(d) Endothelium

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교과서 질문

The serous membrane covering the outer surface of the heart is the:

(a) Parietal layer of the serous pericardium

(b) Endocardium

(c) Myocardium

(d) Visceral layer of the serous pericardium

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교과서 질문

The autonomic centers for cardiac function are located in:

(a) The myocardial tissue of the heart

(b) The cardiac centers of the medulla oblongata

(c) The cerebral cortex

(d) All of these structures

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교과서 질문

Identify the superficial structures in the following diagram of the heart.

a. ___

b. ___

c. ___

d. ___

e. ___

f. ___

g. ___

h. ___

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교과서 질문

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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교과서 질문

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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