1. Lymphatic System tonsils l. cervical lymph nodes right lymphatic duct
thoracic duct
l. subclavian vein
r. axillary lymph nodes
thymus
cisterna chyli
spleen
r. supratrochlear
lymph nodes
Peyer’s patches
l. inguinal
lymph nodes
bone marrow
lymph vessels

2. Lymph Node trabecula germinal centers capsule subscapsular sinus
afferent lymph vessels
afferent lymph vessels
cortex
follicle
hilum
medulla sinus
efferent lymph vessels

3. Lower Respiratory Tract
thyroid cartilage
cricoid cartilage
Trachea
clavicle
r. superior lobe
r. primary bronchus
Carina (tracheal bifurcation)
l. primary bronchus
mediastinum
l. secondary (lobar)
bronchi
r. parietal pleura
l. tertiary (segmental)
bronchus
r. visceral pleura
r. middle lobe
r. inferior lobe
r. pleural cavity
diaphragm
Lower Respiratory Tract

4. Vocal Cords base of tongue epiglottis false vocal cords
true vocal cords
glottis
corniculate cartilage

5. Respiratory Bronchioles
alveolar duct
alveoli
alveolar duct
respiratory bronchiole
terminal
bronchiole
alveolar
sac