| metathalamus | The metathalamus is a composite structure of the thalamus, consisting of the medial geniculate nucleus and the lateral geniculate nucleus [Wikipedia: http://en.wikipedia.org/wiki/Metathalamus]. | — |
| midbrain | The middle of the three primary divisions of the developing vertebrate brain or the corresponding part of the adult brain [Brenda]. | — |
| myometrium | The smooth muscle coat of the uterus, which forms the main mass of the organ [Brenda]. | — |
| osseous labyrinth | The bony labyrinth or osseous labyrinth consists of three parts: the vestibule, semicircular canals, and cochlea. These are cavities hollowed out of the substance of the bone, and lined by periosteum; they contain a clear fluid, the perilymph, in which the membranous labyrinth is situated [Wikipedia: http://en.wikipedia.org/wiki/Bony_labyrinth]. | bony labyrinth |
| pia mater | The fine vascular membrane that closely envelops the brain and spinal cord under the arachnoid and the dura mater [Brenda]. | — |
| pons | A broad mass of chiefly transverse nerve fibers conspicuous on the ventral surface of the brain of man and lower mammals at the anterior end of the medulla oblongata [Brenda]. | — |
| rectum | The terminal part of the intestine from the sigmoid flexure to the anus [Brenda]. | — |
| renal corpuscle | A mass of arterial capillaries enveloped in a capsule and attached to a tubule in the kidney [Brenda]. | — |
| renal tubule | One of the minute, reabsorptive, secretory, and collecting canals, made up of basement membrane lined with epithelium, that form the substance of the kidneys [Brenda]. | — |
| seminal vesicle | Either of a pair of glandular pouches that lie one on either side of the male reproductive tract and in the human male secrete a sugar- and protein-containing fluid into the ejaculatory duct [Brenda]. | — |
| seminiferous tubule | One of two or three twisted, curved tubules in each lobule of the testis in which spermatozoa develop [Brenda]. | — |
| subthalamus | The subthalamus is a part of the diencephalon. Its major part is the subthalamic nucleus. Functionally, it also encompasses the globus pallidus, which is topographically part of the telencephalon [Wikipedia: http://en.wikipedia.org/wiki/Subthalamus]. | — |
| thalamus | The largest subdivision of the diencephalon that consists chiefly of an ovoid mass of nuclei in each lateral wall of the third ventricle and functions in the integration of sensory information [Brenda]. | — |
| third ventricle | The third ventricle (ventriculus tertius) is one of four connected fluid-filled cavities comprising the ventricular system within the human brain. It is a median cleft between the two thalami, and is filled with cerebrospinal fluid (CSF) [Wikipedia: http://en.wikipedia.org/wiki/Third_ventricle]. | — |
| trophoblast | A thin layer of ectoderm that forms the wall of many mammalian blastulas and functions in the nutrition and implantation of the embryo [Brenda]. | — |
| umbilical vein | A vein that passes through the umbilical cord to the fetus and returns the oxygenated and nutrient blood from the placenta to the fetus [Brenda]. | — |
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