Question

What is the fasicle orientation/organisation of the adductor longus, adductor Magnus, adductor brevis, tricep brachii, Serratus Anterior, trapezius, lastissiumus dorsi, rhomboids, trees major, obliques, flexor digitorum profundus, flexor digitorum superficialis and flexor pollicis longuss?

Answer 1

Adductor longus- they have oblique orientation of fibres that may be triangular or pennate.

Adductor Magnus has orientation in many different directions called as cruciate arrangement.

Triceps brachii - these are fusiform shaped muscles having parallel orientation of fascicles.

Trapezius is a broad and flat and superficial muscles that has convergent muscle fasicle arrangement. Fibre of Trapezius insert at clavicle ,spine of scapula and acromian.

Latissimus dorsi has fibres which are arranged spirally .

Serratus anterior has fan shaped or pennate fascicle orientation

Teres major has same orientation as that of infraspoinfra that is bipennate orientation.

Flexor digitorum profundus is a fusiform muscle having fibre orientation of parallel type.

Flexor pollicis longus- has unipennate orientation.