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=^= 6.4.0 - Trill

Created by Captain Lirha Saalm on 14 Oct 2014 @ 8:04pm

Starfleet Medical Database

Trill (Host species)

Table of Contents:


  • Sexual dimorphic

  • Females - average 1.65 meters and 62 kgs.

  • Males - average 1.8 meters and 72 kgs.

  • On average males and females tend to be slightly taller and slightly slimmer than Humans.

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Respiratory System

  • Two lungs occupying the thoracic cavity. A diaphragm is present.

  • For all purposes the respiratory system can be considered equivalent to Humans.

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Nervous and Execratory System

  • Nervous systems is organized similar to Humans with significant differences:
    • The basal ganglia sometimes referred erroneously as the cerebral ganglia is duplicated in Trills
    • One set of major neurons goes to the pouch (see reproduction) and it is through these neurons that the symbiont makes it connections
    • If there is no symbiont (unjoined), the secondary ganglion becomes quiescent
    • If joined, the prime neurotransmitter to help co-ordinate the two ganglia is isoboramine.
  • In addition there are many connections from the skin receptors located in the distinctive spots or markings that impinge directly the nucleus accumbens.

  • This connection results in sexual arousal by touching or stroking of the markings in Trills.

  • The hypothalamus is the primary organ producing isoboramine.

  • The organization of the kidneys (two), bladder and other execratory system functions are almost identical to human counterparts.

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Digestive System

  • Organization of the digestive system is almost identical to Humans except for the noted absence of an appendix.

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Visual System

  • Two eyes
    • Simple non compound eyes.
    • Virtually identical to Humans but the pigmentation tends to be different and generally darker

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Circulatory System

  • Haemocyanin - iron based

  • Hearts - four chambered based on bilateral symmetry. For all purposes of treatment not different from Humans.

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Skeletal System

  • Trill skeletal system is humanoid and little remarks on its Human counterpart other than being somewhat more gracile than in Humans.

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  • Trill skin and pores are similar to Humans' but with the addition of distinctive patterns called 'spots' that start at the forehead, run down the side of the neck, over the clavicles and then turn near just under the nipple area toward the anterior then move down the sides just under the scapula near the latissimus dorsi are under the arm, they then pattern away just above the iliac creast to continue down the side of the hip, the thighs and to the ankles.

  • The spots are distinctive between each individual. The spots are though to have served as a sexual attractant. As mentioned above the areas of the spots are enriched with nerves that when touched or the skin stroked in the area impinge directly on the nucleus accumbens which involves sexual arousal.

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Reproductive System and Reproduction

  • Internal insemination between males and females.

  • Males have bilateral testes and external phallus.

  • Females posses a vagina, cervix, uterus and ovaries similar to Human.

  • Unlike humans though, Trills are Marsupials. It is the pouch that is used for the symbiont as well as rearing of young.

  • The females are able to control their own fertilization through techniques that modify their considerably complex endocrine system.

  • The normal gestation time in Trills is approximately the same as in Humans.

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Endocrine System

  • The endocrine system of Trills is organized similar to Humans.

  • However, in many Trills the endocrine system cannot stimulate enough production of isoboramine and thus cannot support the necessary neurotransmitter to support a symbiont.

  • The hypothalamus in Trills is especially sensitive to sudden surges of hormones and can easily become damaged enough that it ceases or cannot support isoboramine production.

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  • Endothermic

  • Body temperatures tend to be nearly identical to Humans.

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  • Of course no discussion of the Trill anatomy is finished without comment on the symbiont.

  • These are intelligent vermiform organisms that are remarkably love lived and with joining can bring the memories of previous hosts along the connection.

  • This seems to be a case of mutual symbioses in that the symbionts can travel much further than their normal environment and the Trill host gains many memories and skills

  • Trills themselves attribute the remarkable rise of their civilization to the skills they gained from the symbionts.

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(Created by Allyndra illm Warraquim, USS Galileo)

Categories: Science Database