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Leto [7]
4 years ago
5

The neuronal circuitry to skeletal muscles involves neurons that stimulate contractions and those that inhibit contractions. The

muscle spindles and Golgi tendon organs are involved in maintaining the proper muscle tonus (resting muscle tension); they work by signaling the CNS. Since tetanus involves __________, the neurons involved in muscle contraction __________ are affected.
Biology
2 answers:
UNO [17]4 years ago
7 0

Answer:

somatic motor neuron hyperexcitability; inhibition

The neuronal circuitry to skeletal muscles involves neurons that stimulate contractions and those that inhibit contractions. The muscle spindles and Golgi tendon organs are involved in maintaining the proper muscle tonus (resting muscle tension); they work by signaling the CNS. Since tetanus involves SOMATIC MOTOR NEURON HYPEREXCITABILITY, the neurons involved in muscle contraction INHIBITION are affected.

Explanation:

Tetanus is a infection that is caused by a bacteria called Clostridium tetani. It occurs when open wounds in the body are not properly treated and they get infected. This wound can be caused by stepping on a nail or sharp object like broken bottle.

When tetanus enters an open wound present on the body, it attacks the neurons in the body, specifically the somatic motor neurons. Tetanus hinders the release of neurotransmitters and blocks the inhibitory properties of the muscles. These causes the muscles of the body to contract unhindered and uncontrollably resulting in spasms. This can also be referred to as neuronal hyperexcitabilty.

Sever21 [200]4 years ago
6 0

Answer:

1) Somatic motor neuron hyperexcitability 2) inhibition

Explanation:

Tetanus is infection caused by the toxin produced by the bacterium <em>Clostridium tetani. </em>The tetanus injections are highly recommended whenever a person got injured like on bike accident because it entered the body by break in skin.

Tetanus toxin is transported to spinal cord by binding to presynaptic membrane of neuromuscular junction. Tetanus blocks the neurotransmitter ( GABA and glycine) release from inhibitory neuron which causes the continuous hyperexcitability of motor neuron. So The motor neurons keeps on exiting because inhibitory neurons are unable to release neurotransmitter and this conditions interferes with muscles relaxation.

It may cause fever, headache, breathing problem and bone fracture.

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