Ion Channels
When ions flow across a cell membrane with their concentration gradient, is this active or passive?
Passive Diffusion
This chamber of the heart receives deoxygenated blood from the inferior and superior vena cavas?
Right atrium
What is the most basic cell of the nervous system?
Neuron
The main organ of the respiratory system?
Lungs
The main component of air that is required to live?
Oxygen
The type of channel that opens due to a signaling molecule called a ligand?
Ligand-gated ion channel
The valve between the right atrium and the right ventricle?
Tricuspid valve
The layer of lipids that surround the axon of a neuron?
Myelin sheath
What is one component of the conducting zone?
Examples include nasal cavity, pharynx, larynx, trachea, bronchial tree
The volume of air that is normally inhaled and exhaled during rest?
Tidal volume
This type of ion channel opens due to a physical distortion of the cell membrane?
Mechanically-gated ion channel
What is the name of the heart chamber that receives oxygenated blood from the lungs?
Left Atrium
What are two main structures of the nervous system?
Brain and Spinal Cord
What occurs during gas exchange in the lungs?
Oxygen passed from lungs to RBCs, Carbon Dioxide passed from RBCs to lungs
The volume of air that is left in the lungs after the maximum expiration?
Reserve volume
This type of ion channel responds to changes in electrical properties of the membrane?
Voltage-gated ion channel
The name of the chamber of the heart that pumps oxygenated blood to the whole body?
Left Ventricle
The branches off the neuron cell body, receives impulses from the axons of other neurons?
Dendrites
What is the main molecule in RBCs that make it possible to transport both oxygen and carbon dioxide?
Hemoglobin
The maximum amount of expiration above the normal amount of expiration?
Expiratory Reserve Volume
The randomly gated ion channel that opens and closes at random?
Leakage channel
What is the main artery of the heart that allows for oxygenated blood to be sent through the entire body?
Aorta
The part of a neuron that sends the electrical signal to other neurons, protected by the myelin sheath?
Axon
What is the difference between the conducting zone and the respiratory zone?
Conducting zone have supportive structures, while respiratory zone is directly involved in the gas exchange process
The maximum amount of volume that can be inhaled beyond a normal inhalation?
Inspiratory Reserve Volume