Neural control and Cordination

where is multipolar neuron found

• embryonic stage

• retina of eye

• cerebral cortex

• all the above

which of the following statement is true

• myelinated nerve fibres are found in autonomic and somatic neural system

• the myelinated nerve fibres have Schwann cells but the unmyelinated do not

• both the myelinated and unmyelinated nerve fibres have Schwann cells but the Schwann cells of unmyelinated do not form myelin sheath

choose the correct option about the axoplasm when axon is in resting state

• high concentration of K+

• low concentration of Na+

• low concentration of negative proteins

• high concentration of Na+

• low concentration of K+

The ionic gradient across the resting membrane are maintained by

• facilitated diffusion

• active transport

• passive diffusion

• selective facilitated diffusion

the movement of ions inside and outside the axon is done by

• by Na+ & K+ pump of 3 Na+ inside and 2K+ outside

• by Na+ & K+ pump of 2Na+ outside and 3K+ inside

• by Na+ & K+ pump of 3 Na+ outside and 2K+ inside

• by Na+ & K+ pump of 2Na+ inside and 3K+ outside

Tags

NGSS.HS-LS1-3

the electrical potential difference across the plasma membrane is called

• resting potential

• action potential

• nerve impulse

• both action potential and nerve impulse

synapse include which of the following

• pre-synaptic neuron

• post-synaptic neuron

• synaptic cleft

• all the above

which of the following statement about synaptic cleft is wrong

• fluid- filled space

• present between pre & post synaptic neurons

• generates action potential

• none of the above

released neuro transmitters bind to ______ present on _______

• receptors, pre-synaptic neuron

• receptors, post-synaptic neurons

• ligands, pre-synaptic neurons

• ligands, post-synaptic neurons

what is the correct arrangement of layers from outer to inner

• pia mater--- dura mater--- arachnoid mater

• dura mater--- pia mater--- arachnoid mater

• arachnoid mater--- dura mater--- pia mater

• dura mater--- arachnoid mater--- pia mater