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The superficial muscles have their origin on the common flexor tendon. [2] The ulnar nerve and artery are also contained within this compartment. [ 2 ] The flexor digitorum superficialis lies in between the other four muscles of the superficial group and the three muscles of the deep group.
These three muscles act as flexors at the elbow joint. [5] The extensor carpi radialis brevis and longus are both weak flexors at the elbow joint. Brevis moves the arm from ulnar abduction to its mid-position and flexes dorsally. Longus is a weak pronator in the flexed arm and a supinator in the outstretched arm.
Phrenic nerve; Phrenic plexus; Posterior auricular nerve; Posterior branch of spinal nerve; Posterior cord; Posterior cutaneous nerve of arm; Posterior cutaneous nerve of forearm; Posterior cutaneous nerve of thigh; Posterior scrotal nerves; Posterior superior alveolar nerve; Proper palmar digital nerves of median nerve; Prostatic plexus (nervous)
The brachioradialis, flexor of the elbow, is unusual in that it is located in the posterior compartment, but it is actually a muscle of flexor / anterior compartment of the forearm. The anconeus , assisting in extension of the elbow joint, is by some considered part of the posterior compartment of the arm.
In anatomy, flexor is a muscle that contracts to perform flexion (from the Latin verb flectere, to bend), [1] a movement that decreases the angle between the bones converging at a joint. For example, one's elbow joint flexes when one brings their hand closer to the shoulder, thus decreasing the angle between the upper arm and the forearm.
This reflects the composite derivation from the flexor and extensor musculature. Pectineus: Its anterior set of fibers are supplied by the femoral nerve, whereas posterior set of fibers are supplied by the obturator nerve. Flexor digitorum profundus: Its radial half of is supplied by the median nerve and the ulnar half is supplied by the ulnar ...
The rubrospinal fibers generally excite flexor motor neurons and inhibit the extensor motor neurons. [6] It terminates primarily in the cervical and thoracic portions of the spinal cord, suggesting that it functions in upper limb but not in lower limb control. It is small and rudimentary in humans.
This is a list of human anatomy mnemonics, categorized and alphabetized.For mnemonics in other medical specialties, see this list of medical mnemonics.Mnemonics serve as a systematic method for remembrance of functionally or systemically related items within regions of larger fields of study, such as those found in the study of specific areas of human anatomy, such as the bones in the hand ...