hypotonic
/ˌhʌɪpə(ʊ)ˈtɒnɪk
/adjective
1 Biology Having a lower osmotic pressure than a particular fluid, typically a body fluid or intracellular fluid.Thus, the photodamaged lysosomes and the normal ones will suffer the same level of osmotic stress in the same hypotonic sucrose medium....
- At the end of the culture period cells were harvested, exposed to a hypotonic solution and fixed in methanol/acetic acid.
- After 15 min five drops of methanol/acetic acid were added to the hypotonic solution to begin cell fixation.
2 Physiology Of or in a state of abnormally low muscle tone.The infant with botulism becomes progressively weak, hypotonic and hyporeflexic, showing bulbar and spinal nerve abnormalities....
- Cerebral palsy takes the form of a hypotonic tetraplegia when the child has a mobility problem but with floppy muscles.
- On arrival, at 3 hours of age, he was hypotonic with tonic seizures of the upper extremities and bilaterally fixed, dilated pupils.
Derivatives
hypotonia
- For this reason, extensive efforts have been devoted toward elucidating the mechanisms of REM sleep-related upper airway hypotonia.
- The classic clinical features include constipation, cranial nerve abnormalities, hypotonia, hyporeflexia and respiratory difficulties.
- Additional symptoms of chronic carnitine deficiency can include hypoglycemia, progressive myasthenia, hypotonia, or lethargy.
hypotonicity
- We investigated the effects of hyper- and hypotonicity on ion transport processes.
- With this knowledge, the effects of hypotonicity were assessed by comparing the responses of an isotonic to a hypotonic solution.
- Hyponatremia is most commonly associated with states of hypotonicity; however, it can also occur in states of normal or high osmolarity.