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reappearance of absent deep tendon reflexes after short period of maximal muscle contraction Dunphy's sign: Osborne Joby Dunphy: surgery: appendicitis: increase in abdominal pain on coughing Duroziez's sign: Paul Louis Duroziez: cardiology: aortic insufficiency: double bruit heard over femoral artery when it is compressed distally (see Traube's ...
Deep tendon reflexes: Reflexes: masseter, biceps and triceps tendon, knee tendon, ankle jerk and plantar (i.e., Babinski sign). Globally, brisk reflexes suggest an abnormality of the UMN or pyramidal tract, while decreased reflexes suggest abnormality in the anterior horn, LMN, nerve or motor end plate. A reflex hammer is used for this testing.
The term "deep tendon reflex", if it refers to the muscle stretch reflex, is a misnomer. "Tendons have little to do with the response, other than being responsible for mechanically transmitting the sudden stretch from the reflex hammer to the muscle spindle.
Doi's sign is a clinical sign in which absent deep tendon reflexes can be elicited after a short period of maximal muscle contraction. This occurs in patients with Eaton-Lambert syndrome, but is not seen in patients with neuropathy. [1] The sign is named after Hitoka Doi, M.D., who described it in 1978. [2]
It can be detected through the use of a reflex hammer and is the opposite of hyperreflexia. [ citation needed ] Hyporeflexia is generally associated with a deficit in the lower motor neurons (at the alpha motor neurons from the spinal cord to a muscle), whereas hyperreflexia is often attributed to lesions in the upper motor neurons (along the ...
The stretch reflex (myotatic reflex), or more accurately "muscle stretch reflex", is a muscle contraction in response to stretching a muscle. The function of the reflex is generally thought to be maintaining the muscle at a constant length but the response is often coordinated across multiple muscles and even joints. [ 1 ]
Glabellar reflex; Golgi tendon reflex; Hanger reflex - reflex of unclear purpose that causes the head to rotate to the right when the top sides of the head are under pressure, named because it can be easily activated with a coat hanger; Hering–Breuer reflex — is a reflex triggered to prevent over-inflation of the lung
Biceps reflex is a deep tendon reflex (DTR) test (also known as a muscle-stretch reflex test) [1] that examines the function of the C5 reflex arc and the C6 reflex arc. [2] The test is performed by using a tendon hammer to quickly depress the biceps brachii tendon [ 3 ] as it passes through the cubital fossa .