Chapter 21: The Respiratory System Flashcards
Most ATP synthesis requires ________ and produces _______.
Oxygen
Carbon dioxide
What are the respiratory and cardiovascular systems jointly known as?
Cardiopulmonary system
What is respiration?
The ventilation of lungs (breathing)
What are the functions of respiration?
Gas exchange, communication, olfaction, acid-base balance and BP regulation
What is the conduction division only?
Air flow
The conduction system consists of those passages that serve only for airflow, essentailly from the _______
Nostrils through the major bronchioles
What is the respiratory divsion of the repiratory system involved in?
Gas exchange
The respiratory divison consists of the ____
Alveoli and other gas-exchange regions
What is the upper respiratory tract comprised of?
Nose through larynx
Respiratory organs of head and neck
What is the lower respiratory tract comprised of?
Trachea through lungs
respiratory organs of thorax
What are the functions of the nose?
Warms, cleanses, humidifies inhaled air
What are the 3 folds of tissue on lateral walls?
Superior, middle and inferior nasal conchae
____ are narrow air passages between each conchae
Meatuses
What tissue is the nasal (respiratory) mucosa made of?
pseudostratified ciliated columnar epithelium
What is the the olfactory epithelium?
pseudostratified ciliated columnar epithelium with Immobile cilia
____ are stiff guard hairs that block debris from entering nose
Vibrissae
The lamina propria contains ____ and has many _____
Mucous glands
lymphocytes and plasma cells
What is the erectile tissue (swell body)?
Venous plexus in inferior conchae
What tissue is the nasopharynx made of?
pseudostratified columnar epithelium
What does the nasopharynx do and contain?
Receives auditory tubes and contains pharyngeal tonsil
What tissue is oropharynx made of?
stratified squamous epithelium
The oropharynx contains ____ and _______
palatine and lingual tonsils
What tissue is the laryngopharynx made of?
Stratified squamous epithelium
Where does the laryngopharynx range from?
Epiglottis to cricoid cartilage
Why is the Oro- and Laryngo-pharynx lined with stratified squamous epilthelium?
b/c they must contact food and drink
The voice box is known as the _____
larynx
What is the function of the larynx?
to keep food and drinks out of the airways
What is the glottis made of?
vocal cords and superior opening
____ is the flap of tissue that guards glottis, directs food and drink to esophagus
Epiglottis
What does the epiglottis do?
Closes airway and directs food to esophagus behind it
What are the extrinsic ligaments?
Thyrohyoid ligament
hyoidepiglottic ligamenet
cricotracheal ligament
Why are they called extrinsic ligamnets?
b/c they link the larynx to other organs