My Own System of Organism Part Categorization.

These two posts inspired me to try myself to make a system of how the parts of thrive organisms should be formed:

This one:

And this one:

I liked these two but I felt both relied to much(in my opinion) on earth kingdoms of taxonomy.
Instead I attempted to create something more global to multi-cellular organisms as a whole. I originally based my system on Kevin Lynch's "The Image of the City"(one of my favorite non-fiction books) though it had quickly diverged from that. I am no artist so I've simply made a list with definitions and examples of each.

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My System:

Pathways: Pathways are systems that move materials (and sometimes electricity) from one structure (or receptor) to another.
In-game: point a to point b connection of one structures/receptors to a structure/receptor/gland
(like the measure distance or draw line tool of google maps).
Ex.: (veins, arteries, nerves, lymphatic vessels, spinal cord, notochord, phloems, xylems, bronchioles)
    Orifices: Orifices are the natural holes in and out of the body.
    In-game: formed from connecting pathway to outside the body instead of a structure or
    receptor.
    Ex.: (mouth, anus, animal reproductive organs, plant reproductive organs)

Structures(Viscera): Hollow organs which serve as areas where bodily substances collect and or meet.
In-game: 3D blob shaped structures that can be molded or formed from a connecting spheres(like how the cell stage looks).
Ex.: (stomach, heart, gallbladder, bladder, plant vacuoles)

Structures(Locomotive): tissue that are used to maintain structure, basic protection of organs, and the mechanical movement of an organism.
In-game: point a to point b connection of one joint to another or between two structures(Locomotive).
Ex.: (bones, cartilage, muscles, tendons)
    Structural Clusters: Structures(Locomotive) that function not directly with a system and instead serve purely for
    maintaining shape and structure and give basic protection of organs.
    In-game: 3D sheet like paint brush that allows layering.
    Ex.: (fat deposits, skin, exoskeleton)
    Joints: points where structures(Locomotive) meet to allow and or regulate
    mechanical movement.
    In-game: euclidean points in the 3D space where two structures(Locomotive) meet.
    Ex.: (gliding joints, hinge joints, pivot joints, ellipsoid joint, saddle joint, ball & socket joint)

Clusters: An organization of similar or identical structures(general) that in their numbers serve a combined systematic purpose.
In-game: paintbrush like system of painting on clusters on to existing structures(Locomotive or Viscera).
Ex.: (hair, feathers, fur, scales)
    Receptors: clusters used to gain information from an environment to allow adequate response to stimuli.
    In-game: same as clusters but may connected with other parts through pathways.
    Ex.: (photoreceptors clusters(eyes), plant stomata, taste bud clusters, alveoli clusters,
    neuron clusters(brains), intestinal cilia clusters, nasal cilia clusters)
    Glands: clusters that release materials or chemicals from a connected part of the organism.
    In-game: same as receptors.
    Ex.: (sweat glands, oil glands, fundus glands, salivary glands, nectaries, plant salt glands)

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Though I feel it is a good start, I understand their are some inconsistencies and possible miscategorized parts that may require deeper thought.
Constructive criticism and additive ideas, information, and opinions are highly appreciated.

Thanks for reading.