Table 1.
Morphological Characteristics of Gracilis Muscle Sampled from Two Species of Wild-Caught Shrew
| |
Water shrew (Sorex palustris) |
Short-tailed shrew (Blarina brevicauda) |
||
|---|---|---|---|---|
| Old (n=9) | Young (n=10) | Old (n=8) | Young (n=7) | |
| Cross-sectional area (μm2) | 1036±139* | 829±62* | 632±52 | 669±125 |
| Extracellular space (μm2) | 60236±5012 | 54467±3523 | 69225±4163 | 40398±9126** |
Muscle was transversely sectioned at 7–9 μm and stained with hematoxylin before analyses. A single asterisk denotes significant differences between species (α=0.05); double asterisks indicate significant differences between age classes. Values are means±standard error.