ANSC222 crosswords

During inhalation, diaphragm and external intercostal muscles

Contract

Movement of molecules from high pressure areas to low pressure areas

Bulk flow

Phyisological zone of the lungs where NO gas exchange occurs

Conducting zone

Large dome-shaped muscle below the lungs that involuntarly contracts

diaphragm

The term describing hemoglobin NOT bound to oxygen

Deoxyhemoglobin

Carbon dioxide can _____ ~20 times more rapidly than oxygen, requiring smaller changes in partial pressure

Diffuse

Another word for inhalation, when air flows into the lungs

inspiration

Physiological zone of the lungs where gas exchange occurs

Respiratory zone

Hollow structures within the lungs, surrounded by capillaries, where most gas exchange occurs

Alveoli

An increase in body _____, which occurs with increased metabolic activity, facilitates the release of oxygen from hemoglobin

Temperature

The term describing hemoglobin that IS bound to oxygen

Oxyhemoglobin

Describes how the diffusion of gas is directly proportional to that gas alone

Partial pressure

The majority of ______ is carried by RBC’s, the rest is dissolved in plasma

Oxygen

_______ pressure is the pressure of the air inside the lung alveoli

Alveolar

The Bohr effect states that hemoglobin’s affinity for oxygen is _______ related to the concentration of carbon dioxide and to blood acidity

Inversely

Dissolved gases diffuse ______ their partial pressure gradients (going from high to low)

down

_______ respiration occurs in the body tissues (systemic capillary gas exchange)

Internal

_______ respiration occurs in the lungs (pulmonary gas exchange)

external

The term describing heme-heme interaction which increases the affinity of hemoglobin for oxygen

Cooperativity

The majority of _______ is dissolved in plasma, the rest is carried by RBC’s

Carbon dioxide

The term describing hemoglobin bound to carbon dioxide

Carbaminohemoglobin

_______ pressure is the negative pressure between the lung and the chest well pleura (creating a lsight suction)

Intrapleural

Structure of the conducting zone that has ~60,000 branches

Bronchioles

Portions of the structures within the conducting zone contain rings of this to keep windpipes open under pressure

cartilage

Automatic flow of molecules from areas of high concentration to areas of low concentration

Diffusion

______ muscles, positioned between the ribs, control breathing

Intercostal

Another word for exhalation, when air flows out of the lungs

expiration

______ intercostal muscles contract during exhalation

External

Because RBC’s contain millions of _______ molecules, they can transport ~1 billion O2 molecules per cell

Hemoglobin

During exhalation, diaphragm and external intercostal muscles

Relax

Each hemoglobin molecule can bind up to _____ molecules of either O2 or CO2

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