5 Questions
What type of protein makes up cross bridges in neurotubules?
Tau protein
What is the primary function of cross bridges in neurotubules?
To anchor neurotubules to other cellular structures
What is the role of microtubule-associated proteins (MAPs) in neurotubules?
To link neurotubules to one another and anchor them to other cellular structures
What is the result of cross bridges linking neurotubules to one another?
Neurotubules become more stable and resistant to depolymerization
What is the effect of anchoring neurotubules to other cellular structures?
Neurotubules become more stable and resistant to deformation
Study Notes
Nervous System Structure
- The nervous system consists of two main parts: the somatic nervous system, which controls voluntary functions, and the autonomic nervous system, which controls involuntary activities.
- The tentorium cerebelli, a horizontal reflection, separates supra- and infra-tentorial spaces and lies on the superior surface of the cerebellum.
Dying-Back Degeneration
- Degeneration of axons begins in their distal ends and progresses toward the neurons of their origin.
Regeneration
- Regeneration of injured nerve fibers occurs in two cases:
- If the injury was slight and/or away from the cell body.
- If the injured nerve fiber was part of the Peripheral Nervous System (PNS).
Neurotubules
- Cross bridges made up of tau protein and microtubule-associated proteins (MAPs) link neurotubules to one another and anchor them to other cellular structures.
Learn about the two main divisions of the nervous system: the somatic nervous system and the autonomic nervous system. Understand their functions and characteristics.
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