Nervous System
This part of the nervous system includes the brain and spinal cord
What is the central nervous system?
The organ that pumps blood throughout the body
What is the heart?
The primary muscle of respiration.
What is the diaphragm?
The molecule in red blood cells that carries oxygen.
What is hemoglobin?
This part of the brain controls involuntary functions like breathing and heart rate
What is the medulla oblongata?
The functional unit of the nervous system.
What is a neuron?
The two types of blood vessels that carry blood to and from the heart
What are arteries and veins?
The structure that prevents food from entering the airway.
What is the epiglottis?
The gas primarily responsible for regulating breathing rate.
What is carbon dioxide?
The upper chamber of the heart that receives oxygen-rich blood
What is the left atrium?
The part of the neuron that receives signals
What is a dendrite?
The phase of the cardiac cycle when the heart muscle contracts.
What is systole?
This law states that pressure and volume are inversely related in the lungs
What is Boyle’s Law?
This shift occurs when oxygen is more readily released from hemoglobin due to increased H⁺ concentration.
What is the Bohr effect?
The large artery that carries oxygenated blood from the heart to the body
What is the aorta?
The neurotransmitter primarily responsible for muscle contraction
What is acetylcholine?
The name of the valve between the left atrium and left ventricle.
What is the bicuspid (mitral) valve?
The term for the maximum amount of air that can be exhaled after a maximal inhalation
What is vital capacity?
The term for the partial pressure of oxygen in arterial blood.
What is PaO₂?
The thin membrane that surrounds the lungs.
What is the pleura?
The division of the autonomic nervous system that triggers the "fight or flight" response
What is the sympathetic nervous system?
The electrical system of the heart starts at this node.
What is the sinoatrial (SA) node?
The structure where the majority of gas exchange occurs.
What are the alveoli?
This law explains how gases dissolve in liquids based on their partial pressures
What is Henry’s Law?
The bundle of nerves that connects the two hemispheres of the brain
What is the corpus callosum?