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Terms in this set (47)
1. Anterior to Esophagus
2. Located in the Mediastinum
3. Made up of C-Shaped Cartilage
What is the Trachealis Muscle made of?
Ciliated cells and Goblet cells
Contracting portion of Trachealis Muscle
Makes the trachea have a smaller diameter.
Produce mucus and traps inhaled foreign particles.
Average Lung Volume
5000 ML, including 150 ML of Dead Space
Primary Bronchi of Lungs
Branches into the lungs
Secondary Bronchi of Lungs
Branches inside of the lungs
Where the heart sits.
-Branch off of the secondary Bronchi.
-Small, less cartilage and have more muscle
Small tubes that air passes through
Where gas exchange takes place between air and blood.
Separates the openings into the main bronchi.
Type 1 Cells
Thin squamous epithelial cells that form 90% of the Alveolar surface.
Type 2 Cells
Round or cubed-shaped secretory cells and produce surfactant.
Moving air into and out of lungs
1. Inspiration: Active--->Expend Energy
2. Expiration : Passive---> Relax
Helps lungs stick to diaphragm when it expands
1. Diaphragm- Contracts when you breath in
2. External Intercostal Muscles- Muscles between rib
3. Neck Muscles
Passive Forced Expiration
1. Internal Intercostal
2. Abdominal Muscles
Sum of Partial Pressures
Partial Pressure of O2 in air or blood plasma
Changed in PH, PCO2, and Temperature cause a shift in the curve
1. PH Decrease (Acidic) The curve shifts
2. PCO2 increases, the curve shifts to the right
3. Temperature increase curve shifts to the right
opposites shift curve to the left
Transport of CO2
7% Carbon dioxide
Functions of the Respiratory System
1. Gas Exchange
2. Regulation of Blood PH
3. Voice production
Upper Respiratory Tract
Nose, Nasal Cavity, Pharynx
Lower Respiratory Tract
Larynx, trachea, lungs, bronchi..
-Nares or Nostrils- external openings
- Choanae- opening to pharynx
- Hard Palate
- Nasal Septum
2. Moistens and warms air
4. Resonating chamber for speech
5. Houses the Olfactory receptors
1. Connects the nasal cavity and the mouth to the larynx and esophagus.
2. Passageway for food, drink and air.
Air only, Between nasal and oral cavity
Air and food, behind mouth
Drinks only, closest to larynx
1. Is made up of nasal cavities, nasopharynx, larynx, trachea, bronchii and bronchioles.
2. Filter, warm, and moisten air and conduct it into the lungs
1. consists of respiratory bronchioles, alveolar ducts, alveolar sacs and alveoli
2. Gas exchange between air and blood
-Space inside your nose
-Large Hairs- Vibrissac
-Act as sticky filters
-Can trigger sneeze
Hard bone that forms part of the nasal cavity, the eye socket, and the hard palate.
Separates the nasopharaynx from the oropharaynx.
Extension of the soft palate, closes nasopharynx when swallowing
Nasal Conchae 3 pairs
Cavities in cranium, increase surface area and moisturize air
Hair like surface of a cell. move objects such as bacteria, parasites, mucous, and dust and sweep it back to throat.
1. Makes sure water and food go into esophagus.
2. Voice Box
Vocal Cords two types
1. False Vocal cords- Superior mucosal folds, Have no part in sound production.
2. True Vocal Cords- Sound, loudness, and pitch.
Causes food to go down esophagus
Hold air in and contract abdomen
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