NERVE CELL SWELLINGS AND ACCOMPANYING PHENOMENA

Electrical Phenomena in Nerve

The action of a number of agents, which may be classified as "stabilizers" and "unstabilizers" on the electrical oscillations and after-potentials in the squid giant axon has been examined. The effects on the spike, "positive overshoot," and "potassium potential" were also observed, but where possible concentrations were employed which left these phenomena unaltered. Veratrine augmented the osc...

Tension and creep phenomena in peripheral nerve.

Tension introduced into peripheral nerves during their surgical repair may reduce the success of this procedure. Two mechanical factors are important; the tension required to effect a repair, and the rate at which this tension changes after surgery. These two factors have been investigated in the rat sciatic nerve. The results show an increasing resistance to elongation of the nerves with incre...

Loudness adaptation accompanying ribbon synapse and auditory nerve disorders.

Abnormal auditory adaptation is a standard clinical tool for diagnosing auditory nerve disorders due to acoustic neuromas. In the present study we investigated auditory adaptation in auditory neuropathy owing to disordered function of inner hair cell ribbon synapses (temperature-sensitive auditory neuropathy) or auditory nerve fibres. Subjects were tested when afebrile for (i) psychophysical lo...

Salivary gland swellings.

Unusual groin swellings.

It is important to remember that a swelling in the groin may be part of a generalized disease or may arise from a structure peculiar to the region. It is therefore pertinent in patients presenting with swellings in the groin always to examine the groin in conjunction with the rest of the body and not in isolation. Careful examination of the patient's axilla, neck and abdomen will indicate wheth...