Section Editor Dean Taylor, MD – See: Muscle Anatomy, Histology, & Physiology; A Abductor Digiti Minimi Brevis Abductor Digiti Minimi (hand) Abductor Hallucis Abductor Pollicis Brevis Abductor Pollicis Longus Anconeus Adductor Brevis Adductor Hallucis Adductor Longus Adductor Magnus Adductor Pollicis B Biceps Brachii Biceps Femoris Brachialis Brachioradialis C Coracobrachialis D Deltoid Dorsal Interossei of Feet … Read more
– Myopathic Disorders – Muscle Fiber Types – Biochemistry of Skeletal Muscle Contraction: – Muscle Contraction: – Depolarization – Metabolic Sequence – Calcium Regulation of Muscle Contraction – Histology of Skeletal Muscle – Chemistry of Skeletal Muscle – Muscle Cramps – Extra … Read more
– Discussion: – T1 images provide contrast between muscles & adjacent tissues; – normal Muscle has low-intermediate signal intensity on both T1 & T2 images where as inflammation and lesions of muscle will have an increased signal on T1 & (even higher on) T2 images, – its important to note … Read more
– See: – Innervation: – Plantar Muscles of the Foot: – Fascial Compartments: – Anterior Compartment – Lateral Compartment – Deep Posterior Compartment – Superficial Posterior Compartment – Anterior Compartment: – anterior to the interosseous membrane and lateral to tibia … Read more
– See: – Forearm Extensors: – Anterior Approach to the Radial Shaft: (Henry) – Superficial Layer: – Pronator Teres – Flexor Carpi Radialis – Palmaris Longus – Flexor Carpi Ulnaris – Middle Layer: – Flexor Digitorum Superficialis – Deep … Read more
– Discussion: – shoulder is bounded posteriorly by teres minor & infraspinatus & partialy by long head of triceps; – it is bounded laterally by deltoid, & superiorly it is bounded by acromion; – anteriorly & inferiorly, shoulder is bounded by pect major & biceps, however, these do not … Read more
– Discussion: – derives from lateral cord (C5, C6): – musculocutaneous nerve passes through coracobrachialis; between biceps & brachialis, & becomes lateral antebrachial cutaneous nerve at elbow; – it has only muscular branches above elbow & only sensory branches below; – lesion of this nerve produces weakness of … Read more
<—- Stance Phase —-> Swing Phase HS FF HR TO | | … Read more
– Isometric Contraction: – w/ isometric (static) contraction, external muscle length does not change; – internally, however, within the fibril the distance between the Z-lines does shortens; – Isotonic Contraction: – is one in which constant internal force is produced, & muscle shortens; – it is also defined … Read more
– See: Muscle Menu – Two Major Fiber Types: type I and type II fibers; – in lower mammals and other animals, muscles are generally composed entirely type I or type II fibers; – human muscle is made up of a mixture of type I and type II fibers; – … Read more