Cremasteric reflex
Cremasteric Reflex
The Cremasteric Reflex (pronounced: krem-uh-ster-ik ree-fleks) is a superficial reflex observed in human males, involving the cremaster muscle response to tactile stimulus.
Etymology
The term "Cremasteric Reflex" is derived from the Greek word "κρεμαστήρ" (kremastēr), meaning "suspender", and the Latin word "reflexus", meaning "bending back".
Definition
The Cremasteric Reflex is a process where the cremaster muscle contracts and pulls up the testicle when the inner part of the thigh is stroked. This reflex is present in healthy males and can be absent in cases of testicular torsion, spinal cord injury, or damage to the genitofemoral nerve.
Procedure
The reflex is elicited by lightly stroking or poking the superior and medial (inner) part of the thigh - regardless of the direction of stroke. The normal response is an immediate contraction of the cremaster muscle that pulls up the testicle ipsilaterally (on the same side of the body).
Clinical Significance
The Cremasteric Reflex is an important clinical examination in males presenting with acute scrotal pain. Absence of the reflex is a strong indicator of testicular torsion, a urological emergency that requires immediate surgical intervention.
Related Terms
External links
- Medical encyclopedia article on Cremasteric reflex
- Wikipedia's article - Cremasteric reflex
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