Anatomy and Development Flashcards
Anterior to Posterior
Vein, Artery, Ureter
Sinus contains
pelvis, fat, nerves, artery, and vein
Cortical Nephrons
Only dip into very superficial part of medulla
Juxtamedullary Nephrons
Dip down into medulla near the papilla
Hydropnephrosis
Accumulation of urine in kidney, can be congenital or obstructive
- dilation of calyces, pelvis, and ureter
Trail of vessels in kidney
Renal Artery –> segmental artery –> interlobar artery –> arcuate artery –> interlobular artery –> afferent arteriole –> efferent arteriole –> interlobular vein –> arcuate vein –> interlobar vein –> renal vein
Adult PCKD
HTN and worsening renal failure after 3rd decade of life
multiple cysts in all areas of parenchyma
Location of kidneys on posterior wall
T11-T12
Venous drainage from kidneys
R renal vein –> directly into IVC
L renal vein –> receives L gonadal vein –> IVC
Respiratory epithelium and glands form from what tissue?
endoderm
CT, cartilage, and smooth muscle of trachea
splanchnic mesoderm
Tracehoesophageal folds
divides trachea and esophagus with septum
Laryngeal cartilage
Neural crest cells
Laryngeal muscles
myoblasts, innervated by vagus nerve
Tracheoesophageal fistula
abnormal communication between trachea and esophagus
can result in polyhydramnios
Visceral pleura
splanchnic mesoderm
Parietal pleura
somatic mesoderm
Azygos lobe of lung
superior lobe of right lung grows medial to azygos vein instead of lateral
Lung hypoplasia
can be from oligohydramnios
can be from congenital diaphragmatic hernia –> GI contents obliterates lung cavity
Lung Development Stages
- Pseudoglandular period (6-16 weeks) - ductal elements develop –> not compatible with life
- Canalicular period (16-26 weeks) - respiratory passageways develop, vascularization occurs –> respiration possible
- Terminal sac period (26-birth) - Type I pneumocytes form (squamous epithelium), Type II pneumocytes line alveoli and secrete surfactant
Maternal glucocorticoid treatment?
Enhances lung development and surfactant production
Respiratory Distress Syndrome
deficiency in surfactant
protein-rich, fibrin-rich exudate
Phrenic and vagus relationship to root of lung?
Phrenic –> anterior
Vagus –> posterior
RALS
Right Pulmonary Artery –> Anterior to Bronchi
Left Pulmonary Artery –> Superior to Bronchi