Details of the Thorax Flashcards
What does the Thorax refer to?
This refers to the entire Chets region.
What is the Thoracic cage?
This is referring to the entire Bony enclosure that the ribs, vertebrae, sternum and costal cartilage create.
What does the sternum consist of?
The Manubrium, the body, The xiphoid process and the sternal arch created by the body and Manubrium junction.
what is the depression on the superior part of the Manubrium?
This is something called the Suprasternal notch.
Lateral to the notches are Clavicular notches that articulate with the medial heads of the clavicle and form the sternal clavicular joints.
What does the Xiphoid process constist of?
It consist of Hyaline cartilage and doesn’t ossify fully until later in life.
No ribs articulate with it but it acts as an attachment point for Abdominal tissue.
What ribs articulate with the Manubrium?
Ribs 1-2 articulate with this portion of the sternum through costal cartilage.
How many pairs of ribs are in the Thoracic cage?
There are 12 pairs, They increase in length from 1-7 and then decrease in length to 12.
What ribs are attached to the Sternum by Costal cartilage?
The first 7 pairs have an Anterior attachment to the sternum by costal cartilage.
These ribs are referred to as True Ribs.
The true ribs articulations are called Sternalcostal joints
What do the 8-10th pairs of ribs attach to?
These are the pairs of ribs that attach to the Sternum indirectly by attaching to the cartilage layer above it until reaching the 7th rib.
These ribs are called Vertebrochondral Ribs.
What do the 11-12 pairs of ribs attach to?
They attach posteriorly to the vertebra in the spine and the hyaline/ Costal cartilage at the ends do not attach to the sternum at all.
What are the ribs called overall that do not attach or indirectly attach to the sternum called?
They are called false ribs but the 8-10th ribs are called Vertebrochondral ribs and the 11-12th pairs are called Vertebral ribs.
What is a Rib fracture?
The rib breaks at the greatest point of impact and or the weakest point of the bone.
What is a Dislocated Rib?
Common in body contact sports and is the displacement of the Costal Cartilage from the sternum.
Resulting in pain when deep breathing.
What is a Separated Rib?
Displacement of the ribs and its Costal cartilage, As a result the rib may move superiorly or inferiorly over another rib causing pain.
What are all the Abnormal bends of the vertebral column?
Scoliosis, Kyphosis, Lordosis.
