Examlex
The stem cells for spermatogenesis are the primary spermatocytes.
Lumbar Puncture
The insertion of a needle between the vertebrae in the lumbar area for the purpose of withdrawing spinal fluid.
Meningitis
An inflammation of the meninges, the protective membranes covering the brain and spinal cord, often caused by infection.
Subarachnoid Space
The interval between the arachnoid membrane and the pia mater covering the brain and spinal cord, filled with cerebrospinal fluid.
Complex Reflex Action
A motor reflex that involves multiple interneurons in addition to the primary sensory and motor neuron, allowing for a more sophisticated response to a stimulus.
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