Osteology of the Anterior Thorax Flashcards
What separates 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 surface on the corpus sterni identifies the location of the synchrondroses?
transverse lines
What articular sites for the costal cartilage of ribs will be identified on 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
What attaches to the scalene tubercle on the first rib?
the anterior scalene muscle
Which groove on the body of the first rib is close to the vertebral end?
the groove for the subclavian artery and first thoracic nerve
What groove on the body 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 second rib?
the inferior costotransverse ligament from the transverse process of T2
What unique feature is present on the body of the second rib?
the tuberosity for serratus anterior
Which ribs are classified as typical ribs, true ribs, costa verae, and vertebrosternal ribs in the typical adult skeleton?
ribs 3-7
Which ribs are classified as atypical ribs, true ribs, costa verae, and vertebrosternal ribs in the typical adult skeleton?
ribs 1 and 2
