Respiratory: Questions - 15.3 Gas Exchange and Transport Flashcards
Movement of oxygen and carbon dioxide between blood vessels and tissues is called:
Systemic Exchange
Movement of oxygen and carbon dioxide between the alveoli and pulmonary capillaries is called:
Alveolar Exchange
What are the three layers of the respiratory membrane?
- Squamous Alveolar cell
- Basement membrane
- Capillary Endothelial cell
At the respiratory membrane, what gas travels from the alveolus to the blood capillary?
Oxygen
At the respiratory membrane, what gas travels from the blood capillary to the alveolus?
Carbon Dioxide
Oxygen and Carbon dioxide move across the respiratory membrane by a process called __________________.
Diffusion
Alveolar Exchange occurs at the _______________.
Respiratory membrane
Alveolar Exchange – what direction does oxygen move?
Alveolus to Pulmonary Capillary
Alveolar Exchange – what direction does carbon dioxide move?
Pulmonary capillary to Alveolus
Alveolar Exchange – oxygen moves from the alveoli to the __________________ and loads into the red blood cell.
Pulmonary capillary
Alveolar Exchange – carbon dioxide unloads from a _________ and moves from the pulmonary capillary to the alveoli.
RBC
Systemic Exchange – what direction does oxygen move?
Blood capillary to Tissue cell
Systemic Exchange – what direction does carbon dioxide move?
Tissue cell to blood capillary
Systemic Exchange – oxygen travels from the rbc of a systemic capillary and moves into a _______________.
tissue
Systemic Exchange – carbon dioxide travels from the tissue into a systemic capillary and loads into a _______.
RBC
The major way oxygen (98.5%) is transported in the bloodstream is by ______________.
Hemoglobin
1.5% of oxygen is transported in the bloodstream as an _________________ , dissolved oxygen.
Oxygen (O2) molecule
The major way carbon dioxide (90%) is transported in the bloodstream is as the ________________ ion.
Bicarbonate
About 5% of carbon dioxide is transported on the hemoglobin molecule. TRUE or FALSE
TRUE
About 5% of carbon dioxides is transported in the bloodstream as the _____________ molecule.
CO2
The circulatory system is responsible for _______________ carbon dioxide and oxygen between the alveoli and tissues.
Transporting
Oxygen enters the red blood cells in ___________ circulation.
Pulmonary
Carbon dioxide leaves the rbcs and enters the lungs in _____________ circulation.
Pulmonary
Alveolar gas exchange occurs between:
Pulmonary capillaries and alveoli.
Oxygen leaves the red blood cells and goes into the tissues in ______________ circulation.
Systemic
Carbon dioxide enters the red blood cells in _______________ circulation.
Systemic
Systemic gas exchange occurs between:
Systemic blood vessels and the body’s tissue cells
Which side of the heart pumps blood for pulmonary circulation?
The right ventricle is the major pump for pulmonary circulation.
Which side of the heart pumps blood for systemic circulation?
The left ventricle is the major pump for systemic circulation.
Oxygen entering rbcs and CO2 leaving the rbcs occurs in:
Alveolar exchange
Oxygen leaves the bloodstream and CO2 enters the bloodstream during:
Systemic Gas Exchange
Oxygen and carbon dioxide move into and out of blood vessels by:
Diffusion.
The majority of carbon dioxide is transported in the as:
The bicarbonate ion (HCO3-)
Hemoglobin can carry both oxygen and carbon dioxide. True or False
True. Hemoglobin can carry up to 4 molecules of oxygen but only 5% of the carbon dioxide is transported by the hemoglobin molecule.
