Osteology of the Anterior Thorax Flashcards
What vertebral levels correspond to the position of the manubrium sterni?
T3-T4
What seperates the manubrium sterni and corpus sterni?
the manubriosternal symphysis
What vertebral levels correspond to the position of the corpus sterni?
T5-T9
How many sternabrae for the corpus sterni?
4 sternabrae
What articular sites for the costal cartilage of ribs will be identified on the corpus sterni?
costal notches II-VII
What feature of the corpus sterni is present in 4-7% of the population?
a sternal foramen
What causes the appearance of the sternal foramen?
failure of the ossification centers of the sternum to fuse together normally
Will the xiphoid process remain cartilage throughout life?
no
What attaches to the scalene tubercle of the first rib?
the anterior scalene muscle
Which groove on the body (corpus or shaft) of the first rib is close to the sternal end?
the groove for the subclavian artery and first thoracic nerve
Which groove on the body (corpus or shaft) of the first rib is close to the sternal end?
the groove for the subclavian vein
What specifically will attach to the crest of the neck of the second rib?
the superior costotransverse ligament from the transverse process of T1
What specifically attaches to the back of the neck of the scond rib?
the inferior costotransverse ligament from the transverse process of T2
What unique feature is present on the body (corpus of shaft) of the second rib?
the tuberosity for the serratus anterior
What are the classifications of ribs 3-7 in the typical adult skeleton?
typical ribs, true ribs, costa verae, and vertebrosternal ribs
