Data · collection
The functioning of the spleen in the Antarctic fish Pagothenia borchgrevinki
Listed in NASA Earthdata CMR
The spleen of notothenioids releases red blood cells during times of stress to increase oxygen uptake.
Description
The more red blood cells in the blood, the more viscous it is and the harder it is to pump around the body in such cold conditions. Notothenioids therefore have a reduced red blood cell volume in their blood during times of rest.
The control of red blood cell release from the spleen was investigated. A spleen was isolated in situ. The splenic nerve was stimulated electrically to investigate the contractile properties.
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Drugs were injected into the perfusion medium to determine if the splenic nerve is composed entirely of cholinergic nerves, the first time cholinergic control of the spleen has been demonstrated in a vertebrate. Isolated samples of spleen were used experimentally to create dose response curves for acetylcholine and adrenaline and blood vessel contractibility was determined.
Links
Documentation and papers
- The investigators homepage biol.canterbury.ac.nz/people/davison.shtml ↗
documentation · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214592939-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214592939-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Fish · LABORATORY
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214592939-SCIOPS | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biological-classification/animals-vertebrates/fish | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:laboratory | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |