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An exaggerated Moro reflex can be seen in infants with severe brain damage that occurred in-utero, including microcephaly and hydranencephaly. [6] Exaggeration of the Moro reflex, manifesting either as low threshold or excessive clutching, often occurs in newborns with moderate hypoxic-ischemic encephalopathy.
English: A demonstration of the Moro reflex (also known as the startle reflex) in a four-day-old infant.The infant is lifted by his arms until his head leaves the floor, and then released; the sudden change in head position activates the Moro reflex and the infant reaches out with both arms.
Knee jerk or patellar reflex — a kick caused by striking the patellar tendon with a tendon hammer just below the patella, stimulating the L4 and L3 reflex arcs. Moro reflex, a primitive reflex— only in all infants up to 4 or 5 months of age: a sudden symmetric spreading of the arms, then unspreading and crying, caused by an unexpected loud ...
Generally, decreased reflexes indicate a peripheral problem, and lively or exaggerated reflexes a central one. [9] A stretch reflex is the contraction of a muscle in response to its lengthwise stretch. Biceps reflex (C5, C6) Brachioradialis reflex (C5, C6, C7) Extensor digitorum reflex (C6, C7) Triceps reflex (C6, C7, C8)
A 2011 cross-sectional study assessing primitive reflexes in 67 high-risk newborns, used a sample method to evaluate responses of the sucking, Babinski and Moro reflexes. The results of the study showed that the sucking reflex was performed normally most often (63.5%), followed by the Babinski reflex (58.7%), and the Moro reflex (42.9%).
Usually the onset of the startle response is a startle reflex reaction. The startle reflex is a brainstem reflectory reaction (reflex) that serves to protect vulnerable parts, such as the back of the neck (whole-body startle) and the eyes (eyeblink) and facilitates escape from sudden stimuli. It is found across many different species ...
Most people enter military service “with the fundamental sense that they are good people and that they are doing this for good purposes, on the side of freedom and country and God,” said Dr. Wayne Jonas, a military physician for 24 years and president and CEO of the Samueli Institute, a non-profit health research organization.
Moro_reflex_while_sleeping.ogv (Ogg Theora video file, length 5.4 s, 640 × 480 pixels, 629 kbps, file size: 417 KB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.