Glial Cells and Neurogenesis Quiz

<p>Immune response (C)</p> Signup and view all the answers

<p>Cerebellum (A)</p> Signup and view all the answers

<p>To visualize newly generated cells by incorporating into their DNA (A)</p> Signup and view all the answers

<p>One becomes a stem cell and the other becomes a new neuron (C)</p> Signup and view all the answers

<p>To trigger the release of neurotransmitters from vesicles (A)</p> Signup and view all the answers

<p>NMDA receptors allow the influx of calcium ions, which triggers intracellular signaling cascades that ultimately lead to the strengthening of synaptic connections. (A)</p> Signup and view all the answers

<p>Ionotropic receptors are faster-acting because they directly open ion channels, while metabotropic receptors activate intracellular signaling cascades. (D)</p> Signup and view all the answers

<p>GPCRs activate G proteins, which then initiate intracellular signaling cascades that can modulate various cellular processes. (B)</p> Signup and view all the answers

<p>LTP strengthens synaptic connections by increasing the sensitivity of the postsynaptic neuron to incoming signals, making future responses more robust. (D)</p> Signup and view all the answers

<p>NMDA receptors require the binding of glutamate and a significant level of depolarization to remove a magnesium block, allowing calcium influx. (C)</p> Signup and view all the answers

<p>They are commonly found in the central nervous system, mediating complex cognitive functions. (B)</p> Signup and view all the answers

<p>AMPA receptors are fast-acting and allow sodium influx, while NMDA receptors are slower and allow both sodium and calcium influx, requiring depolarization for activation. (D)</p> Signup and view all the answers

<p>Glial cells provide support, nourishment, and insulation to neurons, helping to maintain their function and health. (A)</p> Signup and view all the answers

<p>BrdU labeling marks newly formed cells, including neurons, providing evidence for the ongoing creation of brain cells. (B)</p> Signup and view all the answers

<p>The strength of a synaptic connection can change over time in response to activity, allowing for learning and memory. (B)</p> Signup and view all the answers

Glial cells in the CNS that myelinate axons, increasing conduction velocity.

Glial cells in the PNS that myelinate peripheral nerves, including motor and sensory neurons.

Immune cells in the brain, derived from blood cell lineage, that proliferate and function like macrophages.

The process of generating new neurons from stem cells; occurs in specific brain regions.

Region where new neurons are generated from stem cells, particularly in the dentate gyrus.

Experimental technique using BrdU to identify dividing cells, confirming neurogenesis.

Junctions where neurotransmitters are released, influencing post-synaptic neuron activity.

Increase of calcium ions in the pre-synaptic neuron, triggering neurotransmitter release.

Direct ion flow between adjacent neurons, enabling faster communication.

Fast-acting receptors that open ion channels directly when neurotransmitter binds.

Slow-acting receptors that trigger signaling cascades upon neurotransmitter binding.

Receptors that activate intracellular signaling when a ligand binds.

Ionotropic receptors that require both glutamate binding and depolarization to activate.

Process that strengthens synaptic connections, crucial for learning and memory.

Calcium influx via NMDA receptors triggers cascades for strengthening synapses.

Ionotropic receptors that mediate fast synaptic transmission with Na+ influx.

Ability of synapses to strengthen or weaken over time, affecting learning.