Anatomy of the Sternum: Detailed Quiz on Thoracic Skeleton

1. What is the specific term for the bump on a rib where it articulates with the vertebra?

Xiphoid process

Tubercle

Costal cartilage

Manubrium

The tubercle is a small bump on a rib that articulates with the transverse process of a vertebra. The other options mentioned are parts of the sternum, not specifically related to ribs.

Explanation

The tubercle is a small bump on a rib that articulates with the transverse process of a vertebra. The other options mentioned are parts of the sternum, not specifically related to ribs.

2. What is the correct term for this part of the rib?

Rib Head

Rib Cartilage

Rib Body

Rib Cage

The rib body is the main curved portion of the rib that connects to the spine and wraps around the chest cavity to protect the organs. The other options mentioned are different parts of the rib structure.

Explanation

The rib body is the main curved portion of the rib that connects to the spine and wraps around the chest cavity to protect the organs. The other options mentioned are different parts of the rib structure.

3. What is the depression located just above the manubrium of the sternum called?

Suprasternal Notch

Clavicular Notch

Costal Cartilage

Xiphoid Process

The Suprasternal Notch is the concave depression located just above the manubrium of the sternum, serving as a palpable anatomical landmark.

Explanation

The Suprasternal Notch is the concave depression located just above the manubrium of the sternum, serving as a palpable anatomical landmark.

4. Which part of the sternum is commonly known as the breastbone?

Manubrium

Jugular Notch

Xiphoid Process

Sternum Body

The sternum consists of three parts: the manubrium, the body, and the xiphoid process. The xiphoid process is the lowest part of the sternum, while the manubrium is the upper part. The jugular notch is located at the top of the manubrium.

Explanation

The sternum consists of three parts: the manubrium, the body, and the xiphoid process. The xiphoid process is the lowest part of the sternum, while the manubrium is the upper part. The jugular notch is located at the top of the manubrium.

5. What is the anatomical name for the angle formed by the articulation of the manubrium and the body of the sternum?

Sternal Angle

Clavicular Notch

Costal Margin

Xiphoid Process

The sternal angle is also known as the angle of Louis and is a significant anatomical landmark used for locating other structures in the thorax.

Explanation

The sternal angle is also known as the angle of Louis and is a significant anatomical landmark used for locating other structures in the thorax.

6. What part of the sternum is this?

Sternal Angle

Xyphoid Process

Body of Sternum

Manubrium

The xiphoid process is the smallest and most inferior part of the sternum. It is cartilaginous and can easily be felt at the bottom of the sternum.

Explanation

The xiphoid process is the smallest and most inferior part of the sternum. It is cartilaginous and can easily be felt at the bottom of the sternum.

7. Which ribs are considered False ribs?

Ribs 8-12

Ribs 1-3

Ribs 4-7

Ribs 13-16

False ribs are ribs that do not directly connect to the sternum via costal cartilage. Ribs 8-10 are known as floating ribs because they do not have any attachment to the sternum.

Explanation

False ribs are ribs that do not directly connect to the sternum via costal cartilage. Ribs 8-10 are known as floating ribs because they do not have any attachment to the sternum.

8. Which ribs are considered floating ribs?

Ribs 11-12

Ribs 1-2

Ribs 5-6

Ribs 7-8

Floating ribs are ribs that are not attached to the sternum (breastbone) or to cartilage coming off of the sternum. Ribs 11 and 12 are called floating ribs because they are only attached to the spine in the back.

Explanation

Floating ribs are ribs that are not attached to the sternum (breastbone) or to cartilage coming off of the sternum. Ribs 11 and 12 are called floating ribs because they are only attached to the spine in the back.

9. What is this portion of the sternum?

Sternal angle

Xiphoid process

Manubrium

Body of the sternum

The manubrium is the uppermost part of the sternum, while the xiphoid process is the lowermost portion. The body of the sternum is the middle section, and the sternal angle is the point where the manubrium and body of the sternum meet.

Explanation

The manubrium is the uppermost part of the sternum, while the xiphoid process is the lowermost portion. The body of the sternum is the middle section, and the sternal angle is the point where the manubrium and body of the sternum meet.

10. What are the parts of the sternum that are also known as Clavicular Notches?

Manubrium

Xiphoid Process

Clavicular Notches

Body of Sternum

The clavicular notches are located on the top of the manubrium of the sternum and are where the clavicles (collar bones) articulate with the sternum.

Explanation

The clavicular notches are located on the top of the manubrium of the sternum and are where the clavicles (collar bones) articulate with the sternum.

11. Which ribs are considered as the true ribs?

Ribs 1-7

Ribs 3-9

Ribs 8-12

Ribs 2-8

True ribs, also known as vertebrosternal ribs, are ribs 1-7. They connect directly to the sternum via their costal cartilage.

Explanation

True ribs, also known as vertebrosternal ribs, are ribs 1-7. They connect directly to the sternum via their costal cartilage.

12. Which part of the rib is the rib head?

Rib Neck

Rib Head

Rib Cartilage

Rib Shaft

The rib head is the rounded proximal end of the rib that articulates with the thoracic vertebrae.

Explanation

The rib head is the rounded proximal end of the rib that articulates with the thoracic vertebrae.

13. Which part of the rib is this?

Rib Head

Rib Shaft

Rib Body

Rib Neck

The rib body is the main part of the rib that forms the curved structure protecting the thoracic cavity. The head of the rib articulates with the vertebrae, the neck connects the head to the body, and the shaft is the long, curved portion of the rib.

Explanation

The rib body is the main part of the rib that forms the curved structure protecting the thoracic cavity. The head of the rib articulates with the vertebrae, the neck connects the head to the body, and the shaft is the long, curved portion of the rib.