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An accessory muscle can also refer to a muscle that is not primarily responsible for movement but does provide assistance. [1] Examples of such muscles are the accessory muscles of respiration where the sternocleidomastoid and the scalene muscles (anterior, middle and posterior scalene) are typically considered accessory muscles of respiration. [6]
Pages in category "Accessory muscle" The following 5 pages are in this category, out of 5 total. This list may not reflect recent changes. ...
Accessory muscles of respiration are muscles that assist, but do not play a primary role, in breathing. Use of these while at rest is often interpreted as a sign of respiratory distress . [ 3 ] There is no definitive list of accessory muscles, but the sternocleidomastoid and the scalenes (anterior, middle, and posterior) are typically included ...
The accessory soleus muscle is an accessory muscle of the calf which is rarely present in humans; [1] it is, however, the most common accessory muscle of the ankle. [2]The muscle inserts on the anterior aspect of the soleus muscle or on the posterior aspect of the tibia or the muscles of the deep posterior compartment.
The anterior and middle scalene muscles lift the first rib and bend the neck to the same side as the acting muscle; [3] the posterior scalene lifts the second rib and tilts the neck to the same side. Because they elevate the upper ribs, they also act as accessory muscles of respiration, along with the sternocleidomastoids.
The accessory nerve is tested by evaluating the function of the trapezius and sternocleidomastoid muscles. [8] The trapezius muscle is tested by asking the patient to shrug their shoulders with and without resistance. The sternocleidomastoid muscle is tested by asking the patient to turn their head to the left or right against resistance. [8]
Accessory soleus muscle; Axillary arch; Epitrochleoanconeus muscle - or anconeous epitrochlearis; Extensor medii proprius muscle; Extensor digitorum brevis manus muscle; Extensor indicis et medii communis muscle; Extensor pollicis et indicis communis muscle; Extensor carpi radialis tertius muscle - or extensor carpi radialis accessorius
The abductor digiti minimi is the most variable hypothenar muscle, [4] and might be joined by accessory slips from the tendon of the flexor carpi ulnaris, the flexor retinaculum, the fascia of the distal forearm, or the tendon of the palmaris longus. Occasionally, the muscle is partially inserted onto the fifth metacarpal bone. [5]