29 Questions
Which structure produces cerebrospinal fluid in the ventricular system?
Choroid plexus
What is the main function of cerebrospinal fluid in the CNS?
Mechanical protection
In what part of the body can cerebrospinal fluid be sampled for diagnostic purposes?
Ventricular system
Which part of the CNS is involved in the circulation of cerebrospinal fluid around the brain and spinal cord?
Brainstem
What is the role of the ventricular system in the CNS besides housing cerebrospinal fluid?
Facilitation of communication between different brain regions
Which type of neuron has multiple dendrites and one axon?
Multipolar neurons
Which glial cell type is responsible for providing structural and metabolic support in the CNS?
Astrocytes
What is the function of oligodendrocytes in the CNS?
Myelin sheath formation
In the PNS, which cells are responsible for forming myelin around a segment of a single axon?
Schwann cells
What is the main function of microglia in the CNS?
Act as immune cells
Which type of glial cell forms myelin sheaths around axons in the PNS?
Schwann cells
What is one of the functions of neuroglia related to neurotransmitters?
Recycling neurotransmitters
Which equation can be used to calculate the equilibrium potential of an ion at 37°C?
Eion = (RT/zF)ln[Ion]out/[Ion]in
What contributes to the generation of resting membrane potential in neurons?
Differential permeabilities to ions and their concentration gradients
How is neuronal resting membrane potential typically measured experimentally?
Via intracellular microelectrodes or voltage-sensitive dyes
Which equation is used to calculate the resting membrane potential in neurons?
GHK equation
What can cause changes in the resting membrane potential of neurons?
Temperature changes or differential ion permeabilities
Which brain region is primarily responsible for motor learning and movement coordination?
Cerebellum
Which component of the brainstem is involved in regulating sleep/wake cycles and motor/sensory pathways?
Pons
Where would you find swellings along unmyelinated axons that release neurotransmitters?
Neuroeffector junction
Which structure connects the two cerebral hemispheres?
Corpus callosum
What is the main function of the hypothalamus in the brain?
Regulate homeostasis and hormone secretion
Which part of the spinal cord contains cell bodies of sensory neurons?
Dorsal root ganglion
What neurotransmitter is released by preganglionic sympathetic fibers onto the ganglion?
Acetylcholine
Which division of the autonomic nervous system controls the male sexual response?
Parasympathetic
What is the primary neurotransmitter released at the neuromuscular junction by the motor neuron?
Acetylcholine
What effect does curare have on neurotransmission in the neuromuscular junction?
Prevents muscle contraction
In which condition do autoantibodies to nAChRs impair neuromuscular transmission?
Myasthenia Gravis
What type of receptors does norepinephrine act on in the sympathetic nervous system?
Adrenergic receptors
Test your knowledge about the ventricular system of the CNS and cerebrospinal fluid. Learn about the structure, function, production, and circulation of CSF within the brain and spinal cord.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
