Practice Questions Flashcards
What drains each lobule in the breast?
Lactiferous duct
What are attaches the dermis to overlying skin firmly in the breast?
Suspensory Ligaments
What is the dilated portion of the lactiferous duct?
lactiferous sinus
Where does the upper right quadrant drain in the lympathic system?
Right subclavian vein
How does the lympathic system drain for everything outside the upper right quadrant?
through a thoracic duct to the left subclavian vein.
How many intercostal spaces are there?
11 intercostal spaces
Nerve supply of the thoracic wall
12 pairs of thoracic spinal nerves divided into anterior and posterior rami
Anterior rami of T1-T11 form intercostal nerves
T12 forms subcostal nerve
How do typical intercostal nerves run?
between the parietal pleura and internal intercostal membrane.
Dermatomes of thoracic wall
Line of nipples- Level of T4
Umbilicus- Level of T10
What is the abdominal cavity?
space bound by abdominal walls, diaphragm and pelvis lined with peritoneum
What and where is the transumbilical plane
helps divide abdominal cavity into quadrants. Level of umbilicus. Level L3/L4
What is the linea alba?
“white line” extends from the xiphoid process to pubic symphysis.
What is the arcuate line?
Marks where rectus sheath becomes fully anterior to rectus abdominis. Only transversalis fascia is posterior to muscle inferior to arcuate line.
Contents of the Rectus Sheath
Rectus abdominis and pyramidalis muscles, superior and inferior epigastric arteries and veins, lymphatics, anterior rami of T7-T12
