Respiratory System Flashcards
Functions of the Respiratory System
Gas Exchange
Blood Regulation
Olfaction
Protection
Voice production
Molecule from the RBC that carries O2
Hemoglobin
Exchange of O2 and CO2 between the organism and Environement
External Respiration
Oxidative process that occurs inside the cell
Cellular Respiration
Participate in the formation of ATP
Glucose + O2
Process of Cellular Respiration
Glycolysis –> Krebs Cycle –> Oxidative Phosphorylation
Process in Cellular Respiration that uses O2
Oxidative Phosphorylation
Gas exchange involves:
Breathing/ Ventilation & Gas Transport
How is gas transported?
Diffusion or transport of Hemoglobin in the RBC
Hemoglobin rich in O2 is called
Oxyhemoglobin
Hemoglobin poor without O2 is called
Deoxyhemoglobin
Requirements for Respiratory Surfaces in animal group
Moist
Thin
Extensive
Why should the Respiratory Surface be moist?
For easy diffusion
What keeps the Respiratory Surface moist?
Surfactant
What is the role of the Surfactant
Decreases Surface Tension of the Alveoli, making gas exchange more efficient
What is a Surfactant?
Type of lipid produced within the alveoli
Bronchi branches into
Bronchioles
Bronchioles branches into
Terminal Bronchioles
Terminal Bronchioles branches into
Respiratory Bronchioles
Secrete mucin and create a protective mucus layer
Goblet Cells
Where are Goblet Cells found?
intercalated in the Cilia
Position of Vocal Cord when one resonates
Adducted / Close
Position of Vocal Cord when we breathe
Abducted/ Open
Two Zones of Respiratory Tree
Conducting Zone
Respiratory Zone
Tonsil is found in this area
Oropharynx
A crucial connection point through which food, water, and air pass
Laryngopharynx
Another term for Laryngopharynx
Hypopharynx
The back area of the Pharynx
Nasopharynx
Leaf-like structure that guards the Pharynx
Epiglottis
Forms the adam’s apple
Thyroid Cartilage
Tough, flexible tissue that forms the front part of the Larynx. Also protects and support the larynx
Thyroid cartilage
The First Tracheal Ring which is a complete ring
Cricoid Cartilage
Controls the passage of Air through Mouth and into the Larynx
Pharynx
The main Trunk of system of tubes which air passes to and from the lungs
Trachea
Tubes that carry air into and out of the Lungs
Bronchi
Bronchi branches out and decreases into
Bronchioles
Bronchioles branches out and decreases into
Terminal Bronchioles
Terminal Bronchioles and decreases into
Respiratory Bronchioles
These are branches of the Bronchi that is embedded in the Lungs
Bronchioles
Two (2) Types of cells found in the Alveoli
Type I - Pneumocytes
Type II - Surfactant
Makes the structure of the Alveoli and forms air-blood barrier where Gas Exchange occurs
Type I - Pneumocytes
Decreases surface Tension of the Alveoli
Surfactant
Number of Secondary Bronchi in the Right Lung
Three (3) Secondary Bronchi
Number of Secondary Bronchi in the Left Lung
Two (2) Secondary Bronchi
Number of Lobes in Right Lung
Three (3) Lobes
Number of Lobes in Left Lung
Two (2) Lobes
Main opening found at the Inner Middle Portion of the Lung
Hilum
Where the Lungs receives the Bronchus, Blood, Lymphatic Vessels, and Nerves
Hilum
Covering of the Thoracic Cavity
Pleurae
Covers the Surface of the Lungs (so tightly it cannot be peeled off)
Visceral Pleura (Inner Layer)
Lines the Chest Cavity
Parietal Pleura (Outer Layer)
These lines the Pleural Cavity
Visceral Pleura & Parietal Pleura
A liquid found between the layers of the pleura and serves to reduce friction
Pleural Fluid
Atmospheric Pressure is Greater during Inspiration / Inhilation
because lungs expands and air goes in
Patm = 760 mmHg
Is Inspiration an Active Process or Passive Process
Active Process - because it aids the innervation of motor nerves
Is Expiration an Active Process or Passive Process
Passive Process
Atmospheric Pressure is Weaker during Expiration
Lung pressure: 759 mmHg
Control the Rate and Depth of breathing
Respiratory Center (nervous system)
Location of the Respiratory System
Medulla (& Pons)
What sends signal to the diaphragm causing it to contract?
Respiratory Center
Average number of breaths per minute when awake / rest
10 - 14 breaths per minute
Average number of breath when Sleeping
8 breaths per minute
Average number of breath when exercising
21 breaths per minute
Most important element in the structure / formation of Hemoglobin
Iron
How many O2 molecules does the Hemoglobin carry
Four (4) O2 molecules
In what area are Hemoglobin unstable
Areas where there is Low Concentration of O2 and High Concentration of CO2 + Area where the Temperature is High and pH is Low
In plasma how many percent of CO2 is carries in solution
7%
CO2 is transported by what in plasma
Bicarbonate
Prevents the collapsion of Trachea
Cartilaginous Rings
Prevents the collapsion of Trachea
Cartilaginous Rings
Small spaces in the skull that regulates temperature and humidity of air
Sinuses
Where can Goblet Cells be found
Nasal Cavity & Trachea
Space at the back of the mouth that leads either to the airway or esophagus
Pharynx
Transport air from Lungs to Trachea
Bronchi
Disorder of the lungs that causes Bronchi to become restricted (smaller)
Asthma
Also known as windpiper
Trachea
Correct order of air flow
Nasal Cavity –> Pharynx –> Larynx –> Trachea –> Alveoli
How many percent of O2 do we breathe from the air
20.1%