Effects of fine-grained diet on annulospiral endings of muscle spindles in the masseter muscle in developing and adult mice.
In the masticatory muscles, neuromuscular spindles have a very important role in controlling the jaw movement since they act as stretch receptors in skeletal muscles. The continuous intake of fine-grained diet which is easily chewable leads to degeneration of the sensory endings of Ia fibers in many muscle spindles of the mouse masseter muscle in only 120 d after birth.
Maeda
N
N
1st Department of Oral Anatomy, Josai Dental University, Saitama, Japan.
Kawasaki
T
T
Osawa
K
K
Sumida
H
H
Yamamoto
Y
Y
Masuda
T
T
Suwa
T
T
Watanabe
Y
Y
Kumegawa
M
M
D000818:Animals; D004032:Diet; D008406:Masseter Muscle / Q000294:innervation* / Q000502:physiology; D008409:Mastication; D008410:Masticatory Muscles / Q000294:innervation*; D008465:Mechanoreceptors / Q000033:anatomy & histology / Q000502:physiology*; D051379:Mice; D008813:Mice, Inbred ICR; D009470:Muscle Spindles / Q000033:anatomy & histology / Q000502:physiology*; D009410:Nerve Degeneration