By the cremasteric reflex, physicians mean the polysynaptic external reflex of the cremasteric muscle that moves the testes upward in response to stimuli. The reflex is exhaustible and may therefore be absent due to age physiology. Abnormal reflex behavior of the cremaster muscle, on the other hand, may also indicate spinal cord lesions. What is … Cremasteric Reflex: Function, Tasks, Role & Diseases
The dorsalis pedis reflex is a pathologic intrinsic reflex of the musculi interossei plantares and is one of the pyramidal tract signs. On a healthy adult, the reflex plantar reflex of the toes with a strike to the dorsal side of the foot has little or no triggerability. Triggerability is indicative of pyramidal lesions. What … Dorsal Reflex of the Foot: Function, Tasks, Role & Diseases
The extensor digitorum reflex is also known as the Braunecker-Effenberg reflex, BER, or finger stretch reflex. It is one of the intrinsic reflexes and is used to test the spinal nerves from segments C6 and C7. What is the extensor digitorum reflex? The extensor digitorum reflex is also called the finger stretch reflex. It belongs … Extensor Digitorum Reflex: Function, Role & Diseases
The adductor reflex is an intrinsic reflex of the muscles and muscle groups in the thighs and arms known as the adductors. The absence of the reflex indicates damage in the corresponding area of the brain. What is the adductor reflex? The adductor reflex is an intrinsic reflex of the muscles and muscle groups in … Adductor Reflex: Function, Tasks, Role & Diseases
The finger flexor reflex is an intrinsic reflex of the finger flexors that is triggered by a blow to the palmar aspect of the middle finger distal phalanges. An exaggeration of reflex flexion is considered an uncertain pyramidal tract sign or a sign of autonomic dystonia. Definitive workup involves imaging and cerebrospinal fluid (CSF) diagnosis. … Finger Flexor Reflex: Function, Tasks, Role & Diseases
Protective reflexes are autonomic muscle movements triggered by external factors to protect a specific body part. The muscles involved are usually skeletal muscles that normally serve conscious, voluntary movement. Protective reflexes are triggered bypassing consciousness in favor of much higher reaction rates, as in the case of the eyelid closure reflex, which protects the eye … Protective Reflexes: Function, Task & Diseases
The scapulohumeral reflex is an intrinsic reflex of the scapulohumeral musculature. A blow to the medial edge of the scapula causes reflex adduction and external rotation of the arm. Changes in reflex movement refer to central or peripheral nerve lesions. What is the scapulohumeral reflex? The scapulohumeral reflex is an intrinsic reflex of the scapulohumeral … Scapulohumeral Reflex: Function, Tasks, Role & Diseases
The masseter reflex is an intrinsic reflex of the masticatory muscles that is triggered by a blow to the lower jaw and closes the jaw. The reflex is one of the muscle stretch reflexes and corresponds to an innate reflex movement of the masseter muscle. The masseter reflex may be absent in peripheral and central … Masseter Reflex: Function, Tasks, Role & Diseases
The Trömner reflex is a muscle reflex (increased finger flexor reflex) that can also occur in almost any healthy person. It is considered a sign of autonomic hyperexcitability and, in strong or unilateral expression, also a pyramidal tract sign. Unilateral absence indicates, for example, a radicular lesion (sensorimotor pain and deficits in the region of … Troemner Reflex: Function, Tasks, Role & Diseases
The patellar tendon reflex corresponds to the monosynaptic patellar reflex and is triggered by pressure on the patellar tendon. The hamstring muscles contract as part of the involuntary intrinsic reflex movement, and the lower leg springs upward. An exaggerated patellar reflex is a pyramidal tract sign. What is the patellar tendon reflex? The patellar tendon … Patellar Tendon Reflex: Function, Tasks, Role & Diseases
A reflex is an involuntary, automatic response of a body part or organ to a stimulus. Within this, a foreign reflex describes a specific type of reflex and is also called a polysynaptic reflex. What is a foreign reflex? Many extraneous reflexes serve a protective purpose. For example, the swallowing reflex enables fluid and food … Foreign Reflex: Function, Tasks, Role & Diseases
The triceps tendon reflex is one of the intrinsic reflexes. When the tendon of the triceps muscle is struck, a contraction of the muscle is triggered. An attenuated reflex may indicate dysfunction in the C6 and C7 segments or impairment of the radial nerve. What is the triceps tendon reflex? Striking the tendon of the … Triceps Tendon Reflex: Function, Tasks, Role & Diseases