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In what way does the interior surface of a cell membrane of a resting (nonconduc

ID: 93589 • Letter: I

Question

In what way does the interior surface of a cell membrane of a resting (nonconducting) neuron differ from the external environment? The interior is ___. A) Positively charged and contains less sodium B) Negatively charged and contains less sodium C) Negatively charged and contains more sodium D) Positively charged and contains more sodium Nuclei of cranial nerves V, VI, and VII are found in the ___. A) Midbrain B) Medulla C) Pons D) Cerebrum The arbor vitae refers to ___. A) Cerebellar gray matter B) Cerebellar white matter C) The pleatlike convolutions of the cerebellum D) Flocculonodular nodes The brain stem consists of the ___. A) Cerebrum, pons, midbrain, and medulla B) Midbrain, medulla, and pons C) Pons, medulla, cerebellum, and midbrain D) Midbrain only The primary auditory cortex is located in the ___. A) Prefrontal lobe B) Frontal lobe C) Temporal lobe D) Parietal lobe Spinocerebellar tracts ___. A) Terminate in the spinal cord B) Carry proprioceptive inputs to the cerebellum C) Give rise to conscious experience of perception D) Are found in the dorsal columns of the spinal cord What cells line the ventricles of the brain? A) Ependymal cells B) Neurons C) Epithelial cells D) Astrocytes

Explanation / Answer

20 B

Negatively charged and contains less sodium

Explanation: Outside of the resting membrane has more sodium ions. Inside more potassium ions and protein anions are present which make inside negatively charged in comparison to outside.

21 C pons

These nuclei are located in pons with one of these located at bordeline of pons and medulla.

22. B Cerebellar white matter

Explanation: Arbor vitae is branched tree like matter present in cerebellum of hind brain.

23. B Midbrain pons and medulla

Explanation: Brain stem consists of pons , medulla oblongata and midbrain. It controls message transmission between brain an body and vice versa.

24.C Temporal lobe

Temporal lobe is functional part of cerebrum responsible for hearing.

25. B carry proprioceptive inputs to cerebellum

26. A ependymal cells

These cells line ventricles of brain and secrete cerebro spinal fluid.

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