Chamber‐Specific Morphometry and Quantitative Cardiac Histology in the Broad‐Snouted Caiman ( Caiman latirostris )
Quantitative cardiac morphology remains poorly documented in crocodilians. Hearts from four commercially reared male Caiman latirostris were examined by gross morphometry, histology, stereology, reticulin staining and Masson's trichrome. Relative heart mass averaged 0.125% of body mass. The left ventricular wall was numerically thicker than the right. Cardiomyocyte volume density and cross-sectional area varied among chambers, whereas collagen-positive area was greater in the right ventricle. Pulmonary arterial walls were markedly thinner than the systemic aortae, and the left pulmonary arterial wall was thicker than the right. These findings extend quantitative cardiac reference data for this species.
Authors
- Vinícius Cardoso‐Brito (ORCID: https://orcid.org/0000-0003-0207-4567)
- Arianne Pontes Oriá (ORCID: https://orcid.org/0000-0001-5093-6841)
- Marcela Aldrovani (ORCID: https://orcid.org/0000-0002-5734-3042)
- Fernanda Gosuen Gonçalves Dias (ORCID: https://orcid.org/0000-0001-6072-4789)
- Caio Rafael Siqueira Vasconcelos (ORCID: https://orcid.org/0009-0001-9189-9677)
- Gabriela Nogueira Maggio (ORCID: https://orcid.org/0000-0002-3220-7132)
- Maysa Barbosa de Almeida (ORCID: https://orcid.org/0000-0001-8729-1311)
- Maria Eduarda Natal Nascimento (ORCID: https://orcid.org/0009-0007-8484-6247)
Institutions
- Universidade Federal da Bahia (BR)
- Universidade de Franca (BR)
Publication Details
- Journal
- Anatomia Histologia Embryologia
- Published
- 2026-10-16
- DOI
- https://doi.org/10.1111/ahe.70183
- Primary Topic
- Comparative Animal Anatomy Studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Conselho Nacional de Desenvolvimento Científico e Tecnológico