1. Diisopropyl fluorophosphate is a nerve gas . Contact, especially via inhalati

Question

1. Diisopropyl fluorophosphate is a nerve gas. Contact, especially via inhalation, induces muscle spasms. Note that laryngospasm induces suffocation. This compound binds to acetylcholinesterase within neuromuscular junctions and once bound, can inhibit the enzyme for weeks. Is the term nerve gas a misnomer?

a. no, such compounds damage nerves

b. yes, such compounds impair information transmission between motor neurons and motor units

2. You have learned that the cerebellum is a critical site in which central integration occurs. The cerebellum is located behind the cerebral hemispheres and above the brainstem. What neuroanatomical landmarks serve to physically connect the cerebellum and brainstem?

a. paired spinocerebellar tracts

b. three pairs of peduncles

3. What would you find inside the brainstem?

vestibular ganglia or   vestibular nuclei

4. What would find alongside the brainstem?

vestibular nuclei or vestibular ganglia

5. Does the transmission of action potentials by axons within the vestibular nerves ever stop within a living animal?

yes or no

6. Dizziness can stem from the sudden, violent motion of the

head or neuroepithelia within the head

Explanation / Answer

1. b. yes, such compounds impair information transmission between motor neurons and motor units

Its a misnomer because it does not have properties of gas and is clear and and colorless at ambient temperature.

2. b. three pairs of peduncles

Middle peduncle connect pons to the cerebellum.

Inferior peduncle connects medulla to the cerebellum

and, superior peduncle connects midbrain to the cerebellum

3. vestibular nuclei

Brainstem has 4 vestibular nuclei

4. vestibular ganglia

5. No

If the transmission of action potential stops then the animal will die

6. From the sudden, violent motion of the head.

People who experience dizziness feel violent rotation of head.

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.