18. Somatic sensory receptor monitor: a) Skeletal muscles cles b) Joints c monit

Question

18. Somatic sensory receptor monitor: a) Skeletal muscles cles b) Joints c monitor smell d) monitor skin surface b) Joints 19. Multipolar neuron is common in the PNS b) False 20. Which is NOT true about axon (neuron)? a) True a) Is long b) Carries electrical signals to target? c) Structure is critical to function ) highly branched 21. Which structural component of neuron makes neuron tissue appears gra b) Telodendria c) cytoskeleton d Nisst bodies a) Axon 22. Specialized cell membrane of the axon is called: a) axon hillock b) axoplasm c) axolemma

Explanation / Answer

18) Somatic sensory receptors d) monitor Skin surface

Sensory receptors located in dermal region to conduct sensory impulses such as touch,pressure,pain to the brain. Sensory receptors includes Meissner's corpuscle,pacinian corpuscle,ruffini corpuscle and nerve root endings.

19) Multipolar neurons located in PNS- b) False

Single axon with multiple dendrites in neuron is caled multipolar neuons and its found in Centra nervous system.

20) Not true about axon - c) structure is critical to function

Axon part of neuron onlysending electrical impulses to dendrites. Also it has many branches and it is too long compare to dendrites.

21) a) axon

22) a) axon hillock

axon hillock is the specilised structure in the cell membrane and it is the last portion of cell membrane. The action potential is initiated only from this structure. From here action potential converged and it will be sent to axons.

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