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Ch. 8 The Appendicular Skeleton
Martini - Fundamentals of Anatomy and Physiology 12th Edition
Martini, Nath, Bartholomew12th EditionFundamentals of Anatomy and PhysiologyISBN: 9780137854011Not the one you use?Change textbook
All textbooksMartini, Nath, Bartholomew 12th EditionCh. 8 The Appendicular SkeletonProblem 5
Chapter 8, Problem 5

The point of the elbow is actually the _____ of the ulna.
(a) Styloid process
(b) Olecranon
(c) Coronoid process
(d) Trochlear notch

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1
Understand that the question is asking for the specific anatomical part of the ulna bone that forms the point of the elbow.
Recall the anatomy of the ulna, which is one of the two long bones in the forearm, and identify its key landmarks: the styloid process, olecranon, coronoid process, and trochlear notch.
Recognize that the 'point of the elbow' refers to the prominent bony projection you can feel at the back of your elbow joint.
Know that the olecranon is the large, curved bony prominence at the proximal end of the ulna that fits into the olecranon fossa of the humerus when the elbow is extended, forming the point of the elbow.
Conclude that the correct anatomical term for the point of the elbow on the ulna is the olecranon.

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Key Concepts

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

Olecranon

The olecranon is the prominent bony projection of the ulna at the elbow. It forms the point of the elbow and serves as the attachment site for the triceps muscle, enabling elbow extension.
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The Back

Ulna Anatomy

The ulna is one of the two long bones in the forearm, characterized by several key features including the olecranon, coronoid process, styloid process, and trochlear notch, each serving distinct structural and functional roles.
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Elbow Joint Structure

The elbow joint is formed by the articulation of the humerus with the ulna and radius. The olecranon of the ulna fits into the humerus, creating the hinge that allows for flexion and extension of the forearm.
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Structural Joint Classifications
Related Practice
Textbook Question

What is the name of the flexible sheet that interconnects the radius and ulna (and the tibia and fibula)?

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Textbook Question

Which of the following is primarily responsible for stabilizing, positioning, and bracing the pectoral girdle?

(a) Tendons

(b) Ligaments

(c) The joint shape

(d) Muscles

(e) The shape of the bones within the joint

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Textbook Question

In anatomical position, the ulna lies:

(a) Medial to the radius

(b) Lateral to the radius

(c) Inferior to the radius

(d) Superior to the radius

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Textbook Question

In the following photographs of the scapula, identify the three views (a–c) and the indicated bone markings (d–g).

-+

a. ___

b. ___

c. ___

d. ___

e. ___

f. ___

g.___

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Textbook Question

The epiphysis of the femur articulates with the pelvis at the (a) pubic symphysis, (b) acetabulum, (c) sciatic notch, (d) obturator foramen.

Textbook Question

The bones of the hand articulate distally with the:

(a) Carpal bones

(b) Ulna and radius

(c) Metacarpals

(d) Phalanges