Muscles that are located within a particular area, especially in anatomy, referring to muscles that originate and insert within the same region.

आंतरिक मांसपेशियाँ

English Usage: The intrinsic muscles of the hand are responsible for fine motor control.

Hindi Usage: हाथ की आंतरिक मांसपेशियाँ सूक्ष्म गति नियंत्रण के लिए जिम्मेदार होती हैं।