The patellar reflex, also called the knee reflex or knee-jerk, is a stretch reflex which tests the L2, L3, and L4 segments of the spinal cord. Many animals...

chemical synapse. In the case of peripheral muscle reflexes (patellar reflex, achilles reflex), brief stimulation to the muscle spindle results in contraction...

tendon: Jaw jerk reflex (CN V) Biceps reflex C5/C6 Brachioradialis reflex C6 Extensor digitorum reflex C6/C7 Triceps reflex C7/C8 Patellar reflex L2-L4 (knee-jerk)...

digitorum reflex (C6, C7) Triceps reflex (C6, C7, C8) Patellar reflex or knee-jerk reflex (L2, L3, L4) Ankle jerk reflex (Achilles reflex) (S1, S2) While...

methods. The insertion of the patellar tendon on the tibia is the location of Osgood–Schlatter disease. Patellar reflex Patellar tendinitis Sagittal section...

A reflex hammer is a medical instrument used by practitioners to test deep tendon reflexes, the best known possibly being the patellar reflex. Testing...

of patellar reflex or knee jerk. Patellar reflex or knee jerk is a kind of deep or stretch reflex where an application of a stimulus to the patellar tendon...

dish. Knee pain Lateral release Lateral retinaculum Osteoarthritis Patellar reflex Platzer, Werner (2004). Color Atlas of Human Anatomy, Vol. 1: Locomotor...

in this sense a common example is the standard patellar reflex or knee-jerk response. Stretch reflex tests are used to determine the integrity of the...

of the startle response is a startle reflex reaction. The startle reflex is a brainstem reflectory reaction (reflex) that serves to protect vulnerable parts...

The singular example of a monosynaptic reflex is the patellar reflex. The next simplest reflex arc is a three-element chain, beginning with sensory neurons...

combined with the Babinski reflex test. Jaw jerk reflex Knee jerk or patellar reflex — a kick caused by striking the patellar tendon with a tendon hammer...

patient's knee is then hit with a reflex hammer to elicit the patellar reflex. The elicited response is compared with the reflex result of the same action when...

to the central nervous system or peripheral nervous system. In the patellar reflex (knee-jerk) for example, its reduction or absence is known as Westphal's...

pupil dilation, increased blood pressure, and increased force of the patellar reflex. Tryptamine produced side effects including nausea, vomiting, dizziness...

tension to the calf muscle. This change of tension triggers the next patellar reflex.) — Gregory Bateson, A Sacred Unity, p. 85 In the text, Bateson goes...

search of damage to the nerves, and various reflex tests. An example of a reflex test would be the patellar reflex test.[citation needed] Treatment of hypoethesia...

limb of the spindle reflex. The deep tendon reflexes are also diminished or absent; for example, the "knee jerk" or patellar reflex may be lacking (Westphal's...

deficiency is areflexia, or the loss of deep tendon reflexes, like the patellar reflex. The usual progression is then to ataxic gait (which continues to progressively...

and low Apgar scores) are:[citation needed] 7.0–10.0 mEq/L – Loss of patellar reflex 10.0-13.0 mEq/L – Respiratory depression 15.0-25.0 mEq/L – Altered...

opercularis pars tensa parvicellular neurosecretory nuclei patella patellar reflex pecten pubis pectinate pectineal pectineus pectoral pectoral girdle...

shoe - S1/2 roots for Achilles reflex (foot plantarflexion) Three four, kick the door - L3/4 roots for patellar reflex (knee extension) Five six, pick...

sign in which there is an absent adductor reflex in the thigh in the presence of a positive patellar reflex. It occurs in patients with an obturator hernia...

The Organism. Rather than looking at certain phenomena, such as the patellar reflex, as singular events, Goldstein tried to understand them as components...

patellofemoral articulation, consisting of the patella, or "kneecap", and the patellar groove on the front of the femur through which it slides; and the medial...

nerve. This may lead to weakness in extending the knee (with reduced patellar reflex) and weakness in flexing the hip. A magnetic resonance imaging (MRI)...

changes included an increases in blood pressure, in the amplitude of the patellar reflex, and in pupillary diameter. The subjective changes are not unlike those...

"Westphal's sign": The clinical correlate of the absence or decrease of patellar reflex or knee jerk. "Westphal's syndrome": A familial form of intermittent...

Mechanical and Electrophysiological Parameters of Normal, Stiff, Rigid Patellar Reflex. Yaltkaya, who was promoted to professorship on 28 September 1979,...

strikingly pale. The reflexes of the hindlimb (patellar reflex, tibialis cranialis reflex, and flexor reflex) are severely reduced or absent. Increased respiratory...