Anatomy
This structure is commonly known as the "voice box".
Larynx
According to Boyle’s Law, if the volume of a container increases, the pressure of the gas does this.
Decrease
This term represents the amount of air that enters or leaves the lungs during a single normal, resting breath.
Tidal volume
In external respiration, oxygen diffuses from this structure into the capillaries.
Alveolus
True or False: The left lung is smaller than the right because it contains the cardiac notch.
True
The respiratory epithelium is primarily composed of this specific tissue type
Pseudostratified Ciliated Columnar Epithelium
During inhalation, the diaphragm performs these two movements.
Contracts & Moves downward
Freebie: First group to have EVERYONE take a deep breath gets the point
You're welcome
This iron-containing protein in red blood cells is responsible for carrying the vast majority of oxygen.
Hemoglobin
True or False: Internal respiration describes the process of moving air into and out of the lungs (breathing).
False
These two regions of the pharynx are shared by both the respiratory and digestive systems.
Oropharynx and Laryngopharynx
During normal expiration, the thoracic cavity does this.
contracts
This specific volume is the amount of air that stays in the lungs even after breathing out as hard as possible.
Residual volume
Most carbon dioxide (CO₂) is transported in the blood in this form.
Bicarbonate ions
True or False: The trachea is kept open by complete, circular rings of bone.
These are the microscopic sites where gas exchange actually occurs.
Alveoli
This is the pressure (in mmHg) at which alveolar pressure equalizes during the respiratory cycle.
760 mmHg
This volume of air can be exhaled slowly after inhaling past the tidal volume.
Slow Vital Capacity (SVC)
These are the specific blood vessels that directly cover the alveoli to allow for gas exchange.
Capillaries
True or False: Simple squamous epithelium makes up the thin walls of the alveoli.
True
Tracheal cartilage rings are "C-shaped" rather than complete circles to allow for this action.
Expansion of the esophagus during swallowing
The respiratory system controls these two vocal characteristics by adjusting air volume and cord tension
Pitch and volume
This capacity is the total amount of exchangeable air, though it does not include residual volume.
Vital Capacity
This term describes the exchange of gases specifically between the alveoli and the blood.
External Respiration
Final Jeopardy: If the expected Vital Capacity in L is in between 3-5 L, does this person fall within the expected range?
Equation: VC = 0.041 x height (in cm) - 0.018 x your age - 2.69
Information:
- 20 year old
- 5'9 (Height in cm = Height in inches x 2.54)
VC = 0.041 x 175.26 - 0.018 x 20 - 2.69 = around 4.14