Differentiate between: (Any four)(a) Myelinat | vedclass

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(A) Myelinated and non-myelinated axons						Myelinated axons			Non-myelinated axons							These appear whitish in colour.			These appear greyish in c

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(A) Myelinated and non-myelinated axons

Myelinated axons	Non-myelinated axons
These appear whitish in colour.	These appear greyish in colour.
Myelin sheath is present.	Myelin sheath is absent.
Nodes of Ranvier are present at intervals.	Nodes of Ranvier are absent.
Transmission of nerve impulse is faster.	Transmission of nerve impulse is slower.

$(b)$ Dendrites and axons

Dendrites	Axons
These conduct impulses towards the cell body.	These conduct impulses away from the cell body.
Usually shorter and branched.	Usually longer and single.
Dendrites are always non-myelinated.	Axons can be myelinated or non-myelinated.

$(c)$ Rods and cones

Rods	Cones
Sensitive to dim light (scotopic vision).	Sensitive to bright light (photopic vision).
Contain rhodopsin pigment.	Contain iodopsin pigment.
Do not perceive colours.	Responsible for colour vision.

$(d)$ Thalamus and Hypothalamus

Thalamus	Hypothalamus
Major coordinating centre for sensory and motor signalling.	Major centre for regulation of body temperature,thirst,and hunger.
Does not secrete hormones.	Secretes releasing and inhibiting hormones.

$(e)$ Cerebrum and Cerebellum

Cerebrum	Cerebellum
Part of the forebrain.	Part of the hindbrain.
Controls voluntary actions and intelligence.	Maintains posture,balance,and equilibrium.

Differentiate between: (Any four)
$(a)$ Myelinated and non-myelinated axons
$(b)$ Dendrites and axons
$(c)$ Rods and cones
$(d)$ Thalamus and Hypothalamus
$(e)$ Cerebrum and Cerebellum

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Differentiate between: (Any four)$(a)$ Myelinated and non-myelinated axons$(b)$ Dendrites and axons$(c)$ Rods and cones$(d)$ Thalamus and Hypothalamus$(e)$ Cerebrum and Cerebellum