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Ch. 7 The Skeletal System
Amerman - Human Anatomy & Physiology 2nd Edition
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822Not the one you use?Change textbook
All textbooksAmerman 2nd EditionCh. 7 The Skeletal SystemProblem 15
Chapter 7, Problem 15

Which of the following is not a proximal carpal bone?


a. Hamate
b. Pisiform
c. Scaphoid
d. Lunate

Verified step by step guidance
1
Step 1: Understand the anatomy of the carpal bones. The carpal bones are eight small bones that make up the wrist, arranged in two rows: the proximal row (closer to the forearm) and the distal row (closer to the hand).
Step 2: Identify the bones in the proximal row. The proximal carpal bones include the scaphoid, lunate, triquetrum, and pisiform.
Step 3: Identify the bones in the distal row. The distal carpal bones include the trapezium, trapezoid, capitate, and hamate.
Step 4: Compare the options provided in the question with the list of proximal carpal bones. Determine which bone is not part of the proximal row.
Step 5: Conclude that the bone not listed in the proximal row is the correct answer to the question.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Carpal Bones

The carpal bones are a group of eight small bones in the wrist that are divided into two rows: proximal and distal. The proximal row consists of the scaphoid, lunate, triquetrum, and pisiform, while the distal row includes the trapezium, trapezoid, capitate, and hamate. Understanding the classification of these bones is essential for identifying which bones belong to each row.
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Proximal vs. Distal Carpal Bones

Proximal carpal bones are those located closer to the forearm, while distal carpal bones are nearer to the fingers. The proximal row includes the scaphoid, lunate, triquetrum, and pisiform, which play crucial roles in wrist movement and stability. Distinguishing between these two groups is vital for anatomical and clinical discussions regarding wrist injuries and treatments.
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Anatomical Terminology

Anatomical terminology provides a standardized language for describing the locations and relationships of body structures. Terms like 'proximal' and 'distal' help clarify positions relative to the center of the body or point of attachment. Familiarity with this terminology is important for accurately interpreting questions related to anatomy, such as identifying specific bones in the wrist.
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Related Practice
Textbook Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.


c. The weight of the body in the sitting position is supported by the ischial tuberosities.

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Textbook Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.


a. The obturator foramen articulates with the head of the femur at the hip joint.

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Textbook Question

Which of the following portions of the scapula articulates with the clavicle?


a. Coracoid process

b. Acromion

c. Spine

d. Glenoid cavity

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Textbook Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.


b. The superior border of the pelvic bone is the iliac crest.

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Textbook Question

The 'elbow bone' is called the:


a. Trochlea

b. Capitulum

c. Olecranon

d. Deltoid tuberosity

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Textbook Question

The only bone of the arm is the _______. The forearm consists of the medial ______and the lateral_____.

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