0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What are the effects of curare given orally?
Curare is not hazardous if taken by mouth; it must be administered into the bloodstream. When it is in the blood, it can cause paralysis of all nerves and muscles.
How does curare cause muscle paralysis?
Curare is a competitive inhibitor of acetylcholine. It fights with acetycholine for postsynaptic receptors.
What is curare poisoning?
Curare poisoning is caused by the ingestion or injection of curare, a plant-derived toxin commonly used as a muscle relaxant. Symptoms of curare poisoning include paralysis, respiratory failure, and potentially death if left untreated. Treatment involves supporting vital functions and administering antidotes like cholinesterase inhibitors.
What is Overall effect of curare in an organism?
Curare is a plant-derived poison that blocks nicotinic acetylcholine receptors at the neuromuscular junction, leading to muscle relaxation and paralysis. This can result in impaired breathing and death if respiratory muscles are affected.
What mechanism does curare acts by?
Curare acts by blocking the transmission of nerve impulses at the neuromuscular junction, leading to muscle paralysis. It does this by binding to and blocking nicotinic acetylcholine receptors on the post-synaptic membrane, preventing the action potential from propagating across the muscle cell membrane.
What does curare act by in the neuromuscular junction?
Curare acts by blocking nicotinic acetylcholine receptors at the neuromuscular junction, preventing the binding of acetylcholine to these receptors. This leads to muscle paralysis since acetylcholine is unable to initiate muscle contraction.
Where does curare come from?
Curare is a plant-based toxin used by indigenous tribes in South America for hunting. It is derived from various plant species, including Chondrodendron tomentosum and Strychnos toxifera, which contain potent neuromuscular blocking agents. Curare blocks nerve impulses to muscles, leading to paralysis and asphyxiation in its prey.
Are there paralyzing moves?
Paralysis is most often caused by damage in the nervous system, especially the spinal cord. Other major causes are stroke, trauma with nerve injury, poliomyelitis, botulism, spina bifida, multiple sclerosis, and Guillain-Barré syndrome. Temporary paralysis occurs during REM sleep, and dysregulation of this system can lead to episodes of waking paralysis. Drugs that interfere with nerve function, such as curare, can also cause paralysis. There are many known causes for paralysis, and perhaps more yet to be discovered.Pseudoparalysis (pseudo- meaning "false, not genuine", from Greek ψεῦδος[6]) is voluntary restriction or inhibition of motion because of pain, incoordination, orgasm, or other cause, and is not due to actual muscular paralysis.[7] In an infant, it may be a symptom of congenital syphilis.
What eats the plant curare?
No animal eats the plant curare. This is because the plant curare is toxic. The plant is poisonous and therefore is not consumed by animals.
Why may the curare-like drug affect respirations?
CURARE PARAlYSES MUSCELS
Which poison can make you paralyzed?
Toxins such as tetrodotoxin, found in pufferfish, and curare, used by South American tribes for hunting, can lead to paralysis by blocking nerve signals or affecting muscle function. Symptoms of paralysis can range from mild weakness to complete inability to move, and can be life-threatening if not treated promptly.
Is curare poisoning affected by the motor end plate or the axon terminal?
Curare poisoning affects the motor end plate. Curare blocks nicotinic acetylcholine receptors on muscle cells at the neuromuscular junction, preventing the binding of acetylcholine and leading to muscle paralysis.
