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hypertonicity

hypertonicity
Noun

This term is primarily used in specialized medical and scientific registers. In a clinical neurological context, it describes a pathological state of muscle rigidity, often associated with upper motor neuron lesions. It is distinct from normal muscle tone, implying a dysfunction that restricts movement and increases resistance to passive stretching.

In a biochemical or physiological context, the term refers to osmotic pressure. A hypertonic solution possesses a higher concentration of solutes compared to another solution, creating an osmotic gradient that draws water out of cells. This distinction is critical in pharmacology and fluid therapy to avoid cellular dehydration or crenation.

Meanings

Nounhypertonicity

An abnormal increase in muscle tension or a state of excessive muscle tone, often resulting in stiffness or rigidity.

The patient exhibited hypertonicity in the lower limbs following the neurological injury.

Nounhypertonicity

The state of a solution having a higher osmotic pressure than a surrounding solution, typically causing water to move out of cells.

The hypertonicity of the saline solution caused the red blood cells to shrink.

Examples

The patient exhibits significant hypertonicity in the upper limbs.

Health

The patient exhibits significant hypertonicity in the upper limbs.

Hypertonicity of the muscle fibers can lead to permanent joint contractures.

Health

Hypertonicity of the muscle fibers can lead to permanent joint contractures.

I wonder if this muscle stiffness is actually a sign of hypertonicity.

Health

I wonder if this muscle stiffness is actually a sign of hypertonicity.

Physical therapy is essential to manage the hypertonicity associated with cerebral palsy.

Health

Physical therapy is essential to manage the hypertonicity associated with cerebral palsy.

The hypertonicity of the saline solution causes the red blood cells to shrink.

School Life

The hypertonicity of the saline solution causes the red blood cells to shrink.

We must consider the hypertonicity of the external medium when calculating osmotic flow.

School Life

We must consider the hypertonicity of the external medium when calculating osmotic flow.

The cell membrane cannot withstand the extreme hypertonicity of the surrounding environment.

School Life

The cell membrane cannot withstand the extreme hypertonicity of the surrounding environment.

Does the hypertonicity of this buffer solution affect the protein stability?

School Life

Does the hypertonicity of this buffer solution affect the protein stability?

The sudden increase in hypertonicity triggered a rapid efflux of water from the cytoplasm.

School Life

The sudden increase in hypertonicity triggered a rapid efflux of water from the cytoplasm.

Related Words

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