upper and lower respiratory tracts
this structure bifurcates into right and left bronchi
trachea
name lobes and fissures of right and left lungs
right: superior, middle, inferior lobes. oblique and horizontal fissures
left: superior and inferior lobes. oblique fissure. cardiac notch
primary muscle involved in pulmonary ventilation
diaphragm
large clusters of lymphoid cells and extracellular matrix that are not completely surrounded by a connective tissue capsule
tonsils
at the arterial end of a capillary bed, blood pressure forces this kind of fluid from the cells, which is picked up by the lymphatic system
interstitial fluid
this divides the nasal cavity into right and left halves
nasal septum
this wide, concave section of the lungs rests inferiorly on the diaphragm
base
this cavity becomes larger during inhalation and returns to its original size during exhalation
thoracic cavity
a bilobed organ located in the anterior mediastinum which reaches its maximum size during puberty
thymus
this condition results if the lymphatic system is not working properly (if excess fluid is not removed)
edema
this structure is the last, smallest portion of the conducting part of the respiratory tract
terminal bronchioles
this serous membrane lines the outside of the lungs
pleura
pulmonary surfactant begins to be produced at this point in embryonic development
28 weeks
round or ovoid structures located along the pathways of lymphatic vessels
lymph nodes
these types of lymphatic vessels transport lymph to the lymph nodes where it's filtered for antigens
afferent lymphatic vessels
this cartilage forms the laryngeal prominence
thyroid cartilage
this section of the lung is where pulmonary arteries and veins and bronchi enter and exit
hilum
these engulf microorganisms or particulate material that has reached the alveoli
alveolar macrophages
largest lymphoid organ in the body
spleen
these two structures empty lymph back into venous circulation
these three paired bony projections subdivide the nasal cavity into separate air passages
nasal conchae (superior, middle, and inferior)
this type of epithelium lines an alveolus
simple squamous epithelium
this process involves the exchange of gases between the atmosphere and the blood
external respiration
types of lymphocytes (3)
T-cells (T lymphocytes)
B-cells (B lymphocytes)
NK cells (natural killer cells)
special types of lymphatic capillaries in the small intestine
lacteals