Myelinated axons are fast, non-myelinated are slow; dendrites take signals in, axons send them out; thalamus relays info, hypothalamus controls body needs; cerebrum thinks, cerebellum balances.

Differentiate between: (a) Myelinated and non-myelinated axons

Differentiate between:

(a) Myelinated and non-myelinated axons

(b) Dendrites and axons

(d) Cerebrum and Cerebellum

(a) Myelinated and non-myelinated

Feature	Myelinated	Non-myelinated
Sheath	Schwann cell myelin	No myelin
Conduction	Fast (saltatory)	Slow (continuous)
Impulse jumping	Jumps between nodes of Ranvier	Travels continuously along axon

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(b) Dendrites and axons

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Feature	Thalamus	Hypothalamus
Function	Relay sensory info	Regulate hormones, temperature, hunger, thirst
Location	Forebrain	Below thalamus
Role	Sensory “switchboard”	Body’s “master regulator”

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(d) Cerebrum and Cerebellum

Feature	Cerebrum	Cerebellum
Function	Thinking, memory, voluntary actions	Balance, coordination, posture
Size	Largest brain part	Smaller, behind brainstem