accommodation reflex | reflex changes in the eyes that enable an object to be focused on the retina |
Babinski Babinski reflex Babinski sign | extension upward of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front, normal in infants under the age of two years but a sign of brain or spinal cord injury in older persons |
defecation reflex rectal reflex | normal response to the presence of feces in the rectum |
reflex reflex response reflex action instinctive reflex innate reflex inborn reflex unconditioned reflex physiological reaction | an automatic instinctive unlearned reaction to a stimulus |
conditional reflex conditioned reflex acquired reflex conditional reaction conditioned reaction conditional response conditioned response | an acquired response that is under the control of (conditional on the occurrence of) a stimulus |
knee jerk knee-jerk reflex patellar reflex | a reflex extension of the leg resulting from a sharp tap on the patellar tendon |
startle reflex Moro reflex | a normal reflex of young infants, a sudden loud noise causes the child to stretch out the arms and flex the legs |
light reflex pupillary reflex miosis myosis | reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller |
micturition reflex | relaxation of the urethral sphincter in response to increased pressure in the bladder |
pharyngeal reflex gag reflex | normal reflex consisting of retching, may be produced by touching the soft palate in the back of the mouth |
pilomotor reflex gooseflesh goose bump goosebump goose pimple goose skin horripilation | reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation |
plantar reflex | flexion of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front in persons over the age of years, under years the results should be extension of the toes (Babinski reflex) |
rooting reflex | reflex consisting of head-turning and sucking movements elicited in a normal infant by gently stroking the side of the mouth or cheek |
stretch reflex myotactic reflex | reflex contraction of a muscle when an attached tendon is pulled, important in maintaining erect posture |
suckling reflex | reflex behavior in newborn mammals, includes finding and grasping the nipple in the mouth and sucking on it and swallowing the milk |
reflex camera | camera that allows the photographer to view and focus the exact scene being photographed |
inguinal canal canalis inguinalis | oblique passage through the lower abdominal wall, in males it is the passage through which the testes descend into the scrotum and it contains the spermatic cord, in females it transmits the round ligament of the uterus |
reflex arc | the neural path of a reflex |
external oblique muscle musculus obliquus externus abdominis abdominal external oblique muscle oblique | a diagonally arranged abdominal muscle on either side of the torso |
reflex angle | an angle greater thandegrees (but less than ) |
reflex epilepsy | a form of epilepsy in which attacks are induced by peripheral stimulation |
inguinal hernia | hernia in which a loop of intestine enters the inguinal canal, the most common type of hernia in males |
automatic reflex(a) reflexive | without volition or conscious control, the automatic shrinking of the pupils of the eye in strong light, a reflex knee jerk, sneezing is reflexive |
inguinal | of or relating to or near the groin |