Thorax anatomy Flashcards
Cooper ligaments are
Suspensory ligaments that attach the mammary gland to the skin and run from skin to the deep fascia
2 Prominent blood supplies to mammary tissues
- Internal thoracic artery (internal mammary)
- Lateral thoracic artery
Internal thoracic artery is a branch of
And Supplies
Subclavian artery
Supplies the meidal aspect of the gland
Lateral thoracic artery is a branch of
And supplies
Axillary artery
Lateral part of the gland
What nerve may be lesioned during ligation of lateral thoracic artery during a radical mastectomy and what are the results
Long thoracic Nerve
Winged scapula and weakness in abduction of arm above 90o
Tracheoesophageal fistula clinical
- Esophageal atresia and polyhyramnios (increase V of amniotic fluic)
- Regurgitation of milk
- Gagging and cyanosis after feeding
- Abdominal distention after crying
- Reflus of gastic content into lungs causing pneumonitis
2 Congenital causes of Pulmonary hypoplasia
- Congenital diaphragmatic hernia
- Herniation of abdominal contents into the thorax
- affects development of the left lung
- Herniation of abdominal contents into the thorax
- Bilateral renal agenesis
- Caused by oligohydramnios
- increases pressure on the fetal thorax and causes Potter’s sequence
- Caused by oligohydramnios
How many intercostal spaces are present within the thoracic wall
11
Where is the costal groove located
Along the inferior border of each rib
What is protected and runs along the costal groove
(Superior) VAN (Inferior)
Intercoastal Vein
Intercoastal Artery
Intercoastal Nerve
What N supplies the costal and peripheral portions of the diaphragmatic pleura
Intercostal N
What N supplies the diaphragmatic pleaura and the mediastinal pleura
Phrenic N
When pt. is vertical, foreign body falls to
Posterior Basal segemnt of the Right inferior lobe
Thoracic duct carries all the lymphatic drainage from
the body below the diaphragm and on the left side of the trunk and head above the diaphragm
The right lymphatic duct drains lymph flow from
the right head and neck and the right side of the trunk above the diaphragm
Truncus arteriosus (Neural Crest) becomes
Aorta
Pulmonary trunk
Semilunar values
Bulbus cordis becomes
Smooth part of right ventricle (Conus arteriosus)
Smooth part of left ventricle (Aortic vestibule)
Primative ventricle become
Trabeculated part of right and left ventricles
Primitive atrium becomes
Trabeculated part of right and left atrium (pectinate muscles)
Right Sinus venosus becomes
Smooth part of right atrium (sinus venarum)
Left sinus venosus becomes
Coronary sinus and oblique vein of left atrium