Respiratory System Flashcards
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Which structures are part of the conducting pathway? The respiratory pathway?
Conducting pathway: nasal cavity, sinuses, pharynx, larynx, trachea, bronchii, bronchioles
Respiratory pathway: respiratory bronchioles, alveolar ducts, alveoli
What are five functions of the respiratory system?
Bad Gas Can Sometimes Produce Disastrous Odors
- Breathing
- Gas Conditioning
- Sound Production
- Olfaction
- Defense
What is the purpose of the conchae?
Gas conditioning
Name the location and the function of the paranasal sinuses.
- Frontal
- Ethmoid
- Sphenoid
- Maxillary
These spaces make bones lighter.
What structures describe the boundaries of each of the 3 regions of the pharynx?
Nasal cavity, soft palate, hyoid bone, larynx
What keeps food from entering the nasopharyx?
Uvula
Name and locate the 3 types of tonsils (in the pharynx). What system are they part of?
- Pharyngeal tonsil
- Palatine tonsils
- Lingual tonsils
Lymphatic system
What gives the trachea its structure and keeps it open all the time?
Tracheal cartilage
What give the trachea the ability of lateral and anterior flexion?
Anular ligaments
Which portion of the trachea is muscular? What kind of muscle?
Posterior; (smooth muscle, trachealis muscle)
What is the function of goblet cells?
secrete mucin
Outline the naming schema of the braches off the trachea to the terminal branches.
Primary bronchi > secondary bronchi > tertiary bronchi > bronchioles
How are bronchioles different from teriary bronchii?
- Less than 1mm thick
- No tracheal cartilage
- Lined with simple columnar or cuboidal epithelium
- Thick smooth muscle
What happens in the alveoli?
Gas exchange
What 2 cell types form the alveoli wall?
Alveolar Type I and II cells