Bones and joints of the thoracic wall

Question 1

What does the thoracic wall comprise of?

Answer 1

Sternum anteriorly, Vertebrae T1-12 posteriorly, and ribs 1-12 laterally

Question 2

What bones articulate with the manubrium at its super-lateral angle?

Answer 2

Sternum and clavicle

Question 3

What is the joint at the manubrium at its super-lateral angle known as?

Answer 3

Sternoclavicular joint

Question 4

What type of joint is the sternoclavicular joint?

Answer 4

saddle type of Synovial joint

Question 5

What is the name given to the median notch formed by the superior border of the manubrium?

Answer 5

Jugular notch

Question 6

What vertebra does the xiphoid process occur?

Answer 6

T10

Question 7

What vertebrae does the sternomanubrial joint form?

Answer 7

T5 but at the second rib.

Question 8

Which part of the sternum articulates with facets for 2nd costal cartilage?

Answer 8

manubriosternal joint

Question 9

What are the typical ribs?

Answer 9

3-9

Question 10

What do typical ribs have?

Answer 10

• look at notes

Question 11

What are false ribs

Answer 11

8-10

-vertebrochonral ribs

Question 12

What are floating ribs

Answer 12

11-12

-vertebral

Question 13

What are floating ribs

Answer 13

11-12

-vertebral

Question 14

What does the tubercle articulate with?

Answer 14

The transverse process of the thoracic vertebrae of the same number (synovial joint-smooth) and non articular part for fibrous attachment to the process via the costotransverse ligament.

Question 15

What does the head of the rib articulate with?

Answer 15

The vertebrae of same number and the rib above. IE. rib 5 connects to 5th TV and 4TV

Question 16

What lies in the costal groove (bottom of the rib)

Answer 16

• inTERCOSTAL vein, intercostal artery, intercostal nerve.

Question 17

Describe the structure 1st rib.

Answer 17

Atypical true rib.

• short and wide and flat.
• the ribs increase in size until rib 7 then decrease after that.
• articulates with only a single vertebrae T1.

Question 18

Describe the ph-ysical features of the first rib.

Answer 18

• scalene tubercle for attachment of the anterior scalene muscle
• groove for subclavian artery (posterior to tubercle)
• groove for subclavian vein (anterior to tubercle)

Question 19

define dermatome

Answer 19

area of skin supplied by one pair of spinal nerves

Question 20

what is the name of the joint between the rib and vertebrae?

Answer 20

Costotransverse joint

Question 21

which structure and which membrane surrounding the structure pass through the vertebral foramen?

Answer 21

spinal cord and meninges (dura, pia and arachnoid mater)

Question 22

Which nerve part and surrounding membranes pass through the intervertebral foramen/

Answer 22

Mixed spinal nerves and epineurium

Question 23

Describe the thoracic spinous process

Answer 23

Long and slender, sloping downwards. is not bifid.

Question 24

Which two parts of the vertebrae form the neural/vertebral arch i.e. the part of the vertebrae that enclose the spinal cord?

Answer 24

Paired pedicles and paired laminae

Question 25

What does the typical rib normally articulate with?

Answer 25

The vertebral body of the same number as the rib and the vertebral body immediately above.