↑ Purves et al (2018), Central Pathways Conveying Proprioceptive Information from the Body, pp. 204-205
↑ Pearson, Keir G; Gordon, James E (2013). "35 - Spinal Reflexes". ใน Kandel, Eric R; Schwartz, James H; Jessell, Thomas M; Siegelbaum, Steven A; Hudspeth, AJ (eds.). Principles of Neural Science (5th ed.). United State of America: McGraw-Hill. Figure 35-3 The muscle spindle detects changes in muscle length, p. 795. ISBN978-0-07-139011-8.CS1 maint: ref=harv (link)
