Strychnine

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Which part of the strychnos nux vomica tree is toxic?

Seeds (correct)

Fruit pulp

Leaves

Bark

What is the main alkaloid found in the seeds of strychnos nux vomica?

Brucine

Loganin

Kuchila

Strychnine (correct)

Which part of the strychnos nux vomica tree contains only brucine?

Bark (correct)

Seeds

Fruit pulp

Leaves

What is the appearance of the seeds of nux vomica?

Flat and circular Signup and view all the answers

Which alkaloid is more poisonous, strychnine or brucine?

Strychnine Signup and view all the answers

Which part of the body absorbs strychnine?

Liver Signup and view all the answers

How is strychnine excreted from the body?

Through urine Signup and view all the answers

What is the primary use of strychnine?

Respiratory stimulant Signup and view all the answers

Which alkaloid is found in the bark, wood, and leaves of nux vomica?

Brucine Signup and view all the answers

What is the color of the seeds of nux vomica?

Ash-grey Signup and view all the answers

Which neurotransmitter is not affected by the action of strychnine?

GABA Signup and view all the answers

What symptoms occur rapidly when strychnine is swallowed?

Feeling of suffocation and fear Signup and view all the answers

Where does strychnine competitively block receptor sites?

Spinal cord and brainstem Signup and view all the answers

What is the primary effect of strychnine on the spinal cord?

Selective excitation Signup and view all the answers

What happens when the seeds of nux vomica are swallowed or crushed?

They have no poisonous action Signup and view all the answers

Which of the following is a symptom that precedes convulsions?

Rigidity of muscles Signup and view all the answers

What is the characteristic appearance of the face during convulsions?

Cyanosed with an anxious look Signup and view all the answers

Which muscle contraction results in risus sardonicus during convulsions?

Jaw muscles Signup and view all the answers

Which body position is typically observed during convulsions?

Supine with supported head and heels Signup and view all the answers

What is the primary type of muscle movement during convulsions?

Clonic Signup and view all the answers