Respiratory System Flashcards
What are the organs in the Respiratory System?
Nose
Pharynx
Larynx
Trachea
Bronchi
Lungs-alveoli
The only externally visible part of the respiratory system
Nose
The interior of the nose consist of a____ divided by a_____
Nasal cavity, nasal septum
Are located in the mucosa on the superior surface
Olfactory receptors
Lateral walls have projections called____
Conchae
The nasal cavity is separated from the oral cavity by the 2 palate
Anterior hard palate
Posterior soft palate
What are the cavities within bones shrrounding the nasal cavity?
Frontal
Sphenoid
Ethmoid
Maxillary
It lightens the skull, acts as resonance chambers for speech and produces mucus that drains into the nasal cavity.
Sinuses
Three regions of the pharynx
Nasopharynx
Oropharynx
Laryngopharynx
It’s superior behind the nasal cavity
Nasopharynx
Located in the middle region of the mouth
Oropharynx
The inferior region attatched to larynx
Laryngopharynx
What are the tonsils of the pharynx
Pharyngeal tonsils
Palatine tonsils
Lingual tonisls
Routes air and food into proper channels and plays a role in speech
Larynx
Largest hyaline cartilage
Thyroid cartilage
The superior opening if the larynx, and routes food to the larynx and air toward the trachea
Epiglottis
Vibrate with expelled air to create sound
Vocal chords
Opening between vocal chords
Glottis
Formed by division of the trachea
Primary bronchi
Occupy most of the thoracic cavity
Lungs
Each lung is divided into lobes by ____
Fissures
Covers the lung surface
Pulmonary (visceral) pleura
Lines the walls of the thoracic cavity
Parietal pleura
Fills the area between layers of pleura to allow gliding
Pleural fluid
Divisions of respiratory tree
Primary bronchi
Secondary bronchi
Tertiary bronchi
Bronchioli
Terminal bronchioli
Smalles branches of bronchi
Bronchioles
Site of gas exchange
Respiratory Zone
Gas echange takes place within the ____ in the respiratory membrane
Alveoli
Thin squamous epithelial layer lining aveolar walls
Respiratory membrane (Air blood barrier)
Moving air in and out of the lungs
Pulmonary ventilation
Gas exhange between pulmonary blood and alveoli
External respiration
Transport of oxygen and carbon dioxide via the bloodstream
Respiratory gas transport
Gas exhange between blood and tissue cells in systematic capillaries
Internal respiration
Two phases of breathing
Inspiration
Expiration
Can be caused by reflexes or voluntary actions
Nonrespiratory air movements
