Thirty eight intrinsic laryngeal muscles from baboon (Papio papio), rhesus macaque (Macaca mulatta) and pigtail macaque (M. nemestrina) were examined for the presence of muscle spindles. Twenty spindles were found distributed within 10 thyroarytenoid, 8 cricothyroid and 11 posterior cricoarytenoid muscles. Spindle density in these samples is similar to that reported for these muscles in humans. The morphological features of the spindles were found to be similar for human and nonhuman primates.
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics
- Animal Science and Zoology