A deeper plexus is embedded in parenchyma of one of the followings in addition to a superficial network of neurons:

Related Mcqs:

1. In one of the followings, the nervous system consists of a network of neurons present between the ectoderm and endoderm:

   A. Planaria
   B. Mosquito
   C. Toad
   D. Hydra

2. ______ receive information from other neurons; _________ transmit information other neurons.

   A. synapses, cell bodies
   B. Dendrites, axon buttons
   C. Axon buttons dendrites
   D. Axon; cell bodies

3. One of the followings plays a vital role in nutrition of neurons and their protection by myelin sheath:

   A. Axons
   B. Dendrites
   C. Neuroglia
   D. Nissl’s granules

4. A gland in man found embedded in the posterior art of the lateral lobes of the thyroid is:

   A. Goiter
   B. Pancreas
   C. Parathyroids
   D. Adrenals

5. In myelinated neurons the impulse jumps from node to rode (rod of Ranvier). This is called:

   A. Nerve impulse
   B. Saltatory impulse
   C. Presynaptic impulse
   D. Postsynaptic impulse

6. Which of the following functional types of neurons is found in mammals?

   A. Sensory
   B. Associative
   C. Motor
   D. All of these

7. The contact: points between two neurons in the form of microscope gaps are known as:

   A. Synaptic vesicles
   B. Synaptic knobs
   C. Synapses
   D. All of the above

8. Neurons generally cannot fire at rates exceeding 100 impulses per second. This maximum firing rate can be largely attributed to ____________?

   A. spatial summation
   B. relative refractory periods
   C. absolute refractory periods
   D. excitatory postsynaptic potentials

9. Identify the FALSE statement about the neurons in are V1:

   A. Neurons in V1 adapt to visual stimulation, so their response to a stimulus increases over time with repeated presentation
   B. The localized receptive fields and binocular characteristics of V1 neurons correlate very well with the perceptual characteristics of perceptual after-effects
   C. The neurons in area V1 are prime candidates for the mechanisms that underlie visual after-effects in people
   D. Images of complex objects trees; houses, people are initially analyzed by mechanisms that respond to their local physical characteristics and have no connection with the identity of the objects themselves

10. Neurons are made up of dendrites, a soma, and:

    A. axons
    B. axles
    C. atoms
    D. axes