Lymphatic/Respiratory Flashcards
Autoimmune Diseases
Failure of self-tolerance
Production of autoantibodies
Severe Combined Immunodeficiency Disease
Hereditary lack of T and B cells
Vulnerability to opportunistic infection
AIDS
Invades helper T cells, macrophages, and dendritic cells by tricking them to internalize viruses
Retrovirus
Reverse Transcriptase
Uses viral RNA as template to synthesize DNA
Functions of Respiratory System
Olfaction
Acid-base balance
Blood and lymph flow
Expulsion of abdominal contents
Airflow in Lungs
Bronchi–Bronchioles–Alveoli
Conducting Division
Passages serve for airflow, nostrils to bronchioles
Respiratory Division
Alveoli and distal gas-exchange regions
Upper Respiratory Tract
Organs in head, neck, nose, and larynx
Lower Respiratory Tract
Larynx, trachea, bronchi, alveoli
Nose Functions
Warms, cleanses, and humidifies inhaled air
Detects odors
Resonating chamber that amplifies voice
Nasal Cavity
Extends from nostrils to choanae
Ethmoid and sphenoid bones compose the roof
Palate forms the floor
Vestibule
Dilated chamber inside ala nasi
Nasal Septum
Divides cavity into right and left chambers called nasal fossae
Superior, Middle, and Inferior Nasal Conchae
3 folds of tissue on the lateral wall of nasal fossae
Mucus membranes supported by thin scroll-like turbinate bones
Meatuses
Narrow air passage beneath each conchae
Narrowness and turbulence ensures air contacts mucus membranes
Mucosa
Traps inhaled particles