| D001921 |
Brain |
The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. |
Encephalon |
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| D003214 |
Conditioning, Classical |
Learning that takes place when a conditioned stimulus is paired with an unconditioned stimulus. |
Reflex, Conditioned,Classical Conditioning,Classical Conditionings,Conditioned Reflex,Conditionings, Classical |
|
| D000375 |
Aging |
The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time. |
Senescence,Aging, Biological,Biological Aging |
|
| D000818 |
Animals |
Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. |
Animal,Metazoa,Animalia |
|
| D000860 |
Hypoxia |
Sub-optimal OXYGEN levels in the ambient air of living organisms. |
Anoxia,Oxygen Deficiency,Anoxemia,Deficiency, Oxygen,Hypoxemia,Deficiencies, Oxygen,Oxygen Deficiencies |
|
| D001274 |
Atmospheric Pressure |
The pressure at any point in an atmosphere due solely to the weight of the atmospheric gases above the point concerned. |
Atmospheric Pressures,Pressure, Atmospheric,Pressures, Atmospheric |
|
| D051381 |
Rats |
The common name for the genus Rattus. |
Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus |
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