intro till accessory bones
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Questions and Answers

What is shown in Figure 3.6 (A)?

X-ray radiograph of a foot showing the supernumerary trigonum

Identify the anatomical structure visible in the X-ray radiograph of the foot.

Supernumerary trigonum

What radiological technique was used to capture the image in Figure 3.6 (A)?

X-ray

In which part of the body is the supernumerary trigonum typically found?

<p>Foot</p> Signup and view all the answers

What level of difficulty is associated with identifying the supernumerary trigonum in an X-ray image?

<p>Moderately difficult</p> Signup and view all the answers

What is the incidence rate of os vesalianum?

<p>0.1-0.4%</p> Signup and view all the answers

Is os vesalianum a common or uncommon accessory bone?

<p>Uncommon</p> Signup and view all the answers

Describe os vesalianum in terms of classification as an accessory bone.

<p>Incidence: 0.1-0.4%</p> Signup and view all the answers

What type of bone is os vesalianum?

<p>Accessory bone</p> Signup and view all the answers

How prevalent is os vesalianum in the general population?

<p>Rare</p> Signup and view all the answers

What are accessory bones formed in this manner called?

<p>Supernumerary bones</p> Signup and view all the answers

How would you describe the difficulty level of identifying supernumerary bones?

<p>Moderately difficult</p> Signup and view all the answers

What is the term used for bones that are formed in addition to the normal bones?

<p>Supernumerary bones</p> Signup and view all the answers

Can you name bones that are classified as supernumerary bones?

<p>Accessory bones</p> Signup and view all the answers

What is the specialized name given to bones formed in a particular manner?

<p>Supernumerary bones</p> Signup and view all the answers

Which type of bone is composed of spongy bone with a thin covering of compact bone and includes hip bones and vertebrae?

<p>Irregular bones</p> Signup and view all the answers

What term is used to describe bones that have a complex and irregular shape and usually give off several processes?

<p>Irregular bones</p> Signup and view all the answers

Which bones of the skull contain air-filled cavities called air sinuses or air cells?

<p>Pneumatic bones</p> Signup and view all the answers

What is the purpose of the air sinuses in the skull bones?

<p>To make the skull lighter and give resonance to the voice</p> Signup and view all the answers

What term is used for a bony nodule embedded within a tendon or muscle?

<p>Sesamoid bones</p> Signup and view all the answers

Why are sesamoid bones named as such?

<p>Because the smallest ones resemble the seeds of the sesame plant</p> Signup and view all the answers

What are the two main groups of bones in the human body based on their regional distribution?

<p>Axial bones and appendicular bones</p> Signup and view all the answers

Which type of bone tissue mainly forms the ends of long bones and is present in short, flat, and irregular bones?

<p>Spongy bone tissue</p> Signup and view all the answers

How many bones are there in the vertebral column of the human body?

<p>26 bones</p> Signup and view all the answers

What is the total number of ribs in the human body?

<p>24 ribs</p> Signup and view all the answers

Where are the appendicular bones located in the human body?

<p>In the extremities (limbs)</p> Signup and view all the answers

How many bones are there in the human skull?

<p>22 bones</p> Signup and view all the answers

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