Abstract
The renal morphology of three species of desert dwelling Perognathus rodents were compared to Dipodomys and two species of sympatric cricetid rodents. Perognathus has a slightly adapted unipolar kidney capable of urine concentration up to 7,500 mOsm/kgH 2O). Two major modifications were observed in these kidneys. (1) There is elongation of both the inner and outer medulla. When the thickness of the regions in P. penicillatus are factored by kidney weight it is found that the outer medulla is 3.8 and inner medulla is 2.2 times greater in length than the extensively studied Dipodomys merriami. (2) There is great variance in glomerular size with approximately 20% of the glomeruli being very large and located in the juxta medullary region. These glomeruli are 1.5-1.6 times greater in diameter than the more numerous superficial glomeruli. These structural modifications are quantitated and the functional implications are discussed particularly in relation to urine concentrating ability in these desert inhabitants.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 461-468 |
| Number of pages | 8 |
| Journal | Anatomical Record |
| Volume | 194 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1979 |
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ASJC Scopus subject areas
- Agricultural and Biological Sciences (miscellaneous)
- Anatomy
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Morphological study of the desert heteromyid kidney with emphasis on the genus Perognathus. / Altschuler, E. M.; Nagle, Raymond B; Braun, E. J.; Lindstedt, S. L.; Krutzsch, P. H.
In: Anatomical Record, Vol. 194, No. 3, 1979, p. 461-468.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Morphological study of the desert heteromyid kidney with emphasis on the genus Perognathus
AU - Altschuler, E. M.
AU - Nagle, Raymond B
AU - Braun, E. J.
AU - Lindstedt, S. L.
AU - Krutzsch, P. H.
PY - 1979
Y1 - 1979
N2 - The renal morphology of three species of desert dwelling Perognathus rodents were compared to Dipodomys and two species of sympatric cricetid rodents. Perognathus has a slightly adapted unipolar kidney capable of urine concentration up to 7,500 mOsm/kgH 2O). Two major modifications were observed in these kidneys. (1) There is elongation of both the inner and outer medulla. When the thickness of the regions in P. penicillatus are factored by kidney weight it is found that the outer medulla is 3.8 and inner medulla is 2.2 times greater in length than the extensively studied Dipodomys merriami. (2) There is great variance in glomerular size with approximately 20% of the glomeruli being very large and located in the juxta medullary region. These glomeruli are 1.5-1.6 times greater in diameter than the more numerous superficial glomeruli. These structural modifications are quantitated and the functional implications are discussed particularly in relation to urine concentrating ability in these desert inhabitants.
AB - The renal morphology of three species of desert dwelling Perognathus rodents were compared to Dipodomys and two species of sympatric cricetid rodents. Perognathus has a slightly adapted unipolar kidney capable of urine concentration up to 7,500 mOsm/kgH 2O). Two major modifications were observed in these kidneys. (1) There is elongation of both the inner and outer medulla. When the thickness of the regions in P. penicillatus are factored by kidney weight it is found that the outer medulla is 3.8 and inner medulla is 2.2 times greater in length than the extensively studied Dipodomys merriami. (2) There is great variance in glomerular size with approximately 20% of the glomeruli being very large and located in the juxta medullary region. These glomeruli are 1.5-1.6 times greater in diameter than the more numerous superficial glomeruli. These structural modifications are quantitated and the functional implications are discussed particularly in relation to urine concentrating ability in these desert inhabitants.
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U2 - 10.1002/ar.1091940311
DO - 10.1002/ar.1091940311
M3 - Article
C2 - 475010
AN - SCOPUS:0018777134
VL - 194
SP - 461
EP - 468
JO - Anatomical Record
JF - Anatomical Record
SN - 1932-8486
IS - 3
ER -