Disee PDF

Preview

Summary

Download Disee PDF

Description

- excitation – contraction coupling ( no detail on nerve conduction needed) - sliding filament mechanism - production of a muscle twitch and muscle contraction. Excitation – contraction coupling: An increase in the CA 2 +¿¿ level in the sarcoplasm starts the sliding of thin filaments. When the level of CA 2 +¿¿ in the sarcoplasm declines, sliding stops. 1. With reference to their general structure, explain why type I fibres are

described as postural and type IIB fibres as power fibres.

Company

Muscle Action: Opening: - Lateral pterygoid - +/- mylohyoid - Geniohyoid - digastric Closing: - Masseter - Temporalis - Medial pterygoid Protrusion: - Lateral pterygoid - Medial pterygoid - +/- masseter - mylohyoid, geniohyoid - digastric, stylohyoid - anterior temporalis Retrusion: - Temporalis - +/- masseter - digastric - stylohyoid - mylohyoid - geniohyoid Lateral deviation: - Lateral pterygoid (ipsilateral) - Medial pterygoid (contralateral)

- +/- masseter, temporalis Company...