Med1- Vertebral Column & Ribs & Sternum Homework Video Quiz

1. Sternum & costal cartilages form the anterior part of the thoracic cage.

True

False

The statement is true because the sternum and costal cartilages are indeed components of the anterior part of the thoracic cage. The sternum, also known as the breastbone, is a flat bone located in the middle of the chest. It connects to the ribs through the costal cartilages, which are flexible cartilage structures that allow for movement during breathing. Together, the sternum and costal cartilages provide support and protection to the organs within the thoracic cavity.

Explanation

The statement is true because the sternum and costal cartilages are indeed components of the anterior part of the thoracic cage. The sternum, also known as the breastbone, is a flat bone located in the middle of the chest. It connects to the ribs through the costal cartilages, which are flexible cartilage structures that allow for movement during breathing. Together, the sternum and costal cartilages provide support and protection to the organs within the thoracic cavity.

2. How many cervical vertebrae are there?

5

6

7

12

There are seven cervical vertebrae in the human body. These vertebrae are located in the neck region and are responsible for supporting the weight of the head and allowing for movement. The cervical vertebrae are smaller and more flexible compared to other vertebrae in the spine, allowing for a greater range of motion in the neck.

Explanation

There are seven cervical vertebrae in the human body. These vertebrae are located in the neck region and are responsible for supporting the weight of the head and allowing for movement. The cervical vertebrae are smaller and more flexible compared to other vertebrae in the spine, allowing for a greater range of motion in the neck.

3. True ribs (Costae verae) -direct connection with sternum anteriorly via their costal cartilages. Who are they?

1st rib

2nd rib

3rd rib

4th rib

5th rib

6th rib

7th rib

8th rib

9th rib

10th rib

11th rib

12th rib

True ribs, also known as Costae verae, are the ribs that have a direct connection with the sternum anteriorly via their costal cartilages. This includes the 1st rib, 2nd rib, 3rd rib, 4th rib, 5th rib, 6th rib, and 7th rib. These ribs are attached to the sternum by their own individual cartilages, forming a bony and cartilaginous structure that helps protect the organs in the thoracic cavity.

Explanation

True ribs, also known as Costae verae, are the ribs that have a direct connection with the sternum anteriorly via their costal cartilages. This includes the 1st rib, 2nd rib, 3rd rib, 4th rib, 5th rib, 6th rib, and 7th rib. These ribs are attached to the sternum by their own individual cartilages, forming a bony and cartilaginous structure that helps protect the organs in the thoracic cavity.

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4. Head of the rib (Costa capitis) is @ the posterior end (vertebral end) of the rib.

True

False

The head of the rib, also known as the costa capitis, is located at the posterior end of the rib, specifically the vertebral end. This means that the head of the rib is closer to the spine rather than the front of the body. Therefore, the statement "Head of the rib (Costa capitis) is @ the posterior end (vertebral end) of the rib" is true.

Explanation

The head of the rib, also known as the costa capitis, is located at the posterior end of the rib, specifically the vertebral end. This means that the head of the rib is closer to the spine rather than the front of the body. Therefore, the statement "Head of the rib (Costa capitis) is @ the posterior end (vertebral end) of the rib" is true.

5. Sternal angle (of Louis) is between body of sternum (corpus sterni) and xiphoid process.

True

False

Nope, Sternal angle is between the first part of sternum=Manubrium & Body of sternum.

Explanation

Nope, Sternal angle is between the first part of sternum=Manubrium & Body of sternum.

6. We have 33 vertebrae. But one can have _____ or ______ vertebrae.

35

34

32

36

Coccyx is formed by the fusion of 4 vertebrae usually. Sometimes by 3 or by 5.

Explanation

Coccyx is formed by the fusion of 4 vertebrae usually. Sometimes by 3 or by 5.

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7. A typical vertebra has __________ articular processes.

2

3

4

7

2 superior articular processes (one on the right, one on the left)
2 inferior articular processes (one on the righti, one on the left)

Explanation

2 superior articular processes (one on the right, one on the left)
2 inferior articular processes (one on the righti, one on the left)