Essentials of Human Anatomy and Physiology - Package
Essentials of Human Anatomy and Physiology - Package
11th Edition
ISBN: 9780134595276
Author: Marieb
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 1MC

More than one choice may apply.

Which of the following is a list of long bones?

a. Humerus, ulna, sternum, Cranium.

b. Femur, calcaneous, vertebra, clavicle.

c. Radius, ulna, tibia, femur.

d. Sternum, vertebra, sacrum, talus.

Expert Solution & Answer
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Summary Introduction

Introduction:

The skeleton system of the body has been categorized into two categories: the axial skeleton and the appendicular skeleton. The axial skeleton is formed by the bones which resultin the formation of the longitudinal axis of an individual’s body. The bones of the girdles and the limbs attached to the axial skeleton form the appendicular system of the body. The long bones have more length compared to their width. The short bones are those which are equal in their length and breadth. The irregular bones are those which do not have any proper shape and help in the protection of the body. The flat bones are also serving the role of extreme protection in the body.

Answer to Problem 1MC

Correct answer:

Radius, ulna, tibia, and femur comprise the list of long bones.

Explanation of Solution

Justification for the correct answer:

Option (c) is given that radius, ulna, tibia, and femur comprise the list of long bones. Since the body of an organism consists of the 206 bones. These bones are divided into the four categories on the basis of the shape of the bones: the long bones, the short bones, the flat bones, and the irregular bones. The long bones are those bones which are longer and have less width. These bones are compactly packed. The bones of the limbs, except the kneecap and the ankle bones and wrist, are the examples of the long bones. So, the femur (thigh bone), the radius, tibia, and ulna (bone of the arms) are the examples of the long bones. Hence, option (c) is correct.

Justification for the incorrect answers:

Option (a) is given that humerus, ulna, sternum, and cranium comprise the list of long bones. Since the humerus and ulna are the bones in the list which are the example of the long bones but the sternum and cranium are the examples of the flat bones. So, it is an incorrect option.

Option (b) is given that femur, calcaneus, vertebra, and clavicle comprises the list of long bones. Since the femur and clavicleare thebones in the list which belong to the long bones. The calcaneus belongs to the tarsals bones of the ankle which is a type of short bone. The vertebra belongs to the irregular bones. So, it is an incorrect option.

Option (d) is given that sternum, vertebra, sacrum, and talus comprise the list of long bones. Since, the sternum is a type of the flat bone, the vertebra, and the sacrum are the types of irregular bone, and the talus is a type of the short bone. So, it is an incorrect option.

Hence, options, (a), (b), and (d) are incorrect.

Conclusion

Thus, it can be concluded that the radius, ulna, tibia, and femur are the bones which belong to the category of the long bones. These bones are longer than they are wide.

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Chapter 5 Solutions

Essentials of Human Anatomy and Physiology - Package

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