| glans | The glans (Latin for "acorn") is a vascular structure located at the tip of the penis in men or a homologous genital structure of the clitoris in women [Wikipedia: http://en.wikipedia.org/wiki/Glans]. | — |
| foreskin | In male human anatomy, the foreskin is a generally retractable double-layered fold of skin and mucous membrane that covers the glans penis and protects the urinary meatus when the penis is not erect. It is also described as the prepuce, a technically broader term that also includes the clitoral hood in women, to which the foreskin is embryonically homologous [Wikipedia: http://en.wikipedia.org/wiki/Foreskin]. | — |
| fovea centralis | The fovea centralis, also generally known as the fovea (the term fovea comes from the Latin, meaning pit or pitfall), is a part of the eye, located in the center of the macula region of the retina [Wikipedia: http://en.wikipedia.org/wiki/Fovea_centralis]. | — |
| cervix | The cervix (from the Latin cervix uteri, meaning "neck of the womb") is the lower, narrow portion of the uterus where it joins with the top end of the vagina. It is cylindrical or conical in shape and protrudes through the upper anterior vaginal wall. Approximately half its length is visible with appropriate medical equipment; the remainder lies above the vagina beyond view. The cervix has an opening to allow sperm and menstrual fluid to move through [Wikipedia: http://en.wikipedia.org/wiki/Cervix]. | — |
| endometrium | The endometrium is the inner membrane of the mammalian uterus [Wikipedia: http://en.wikipedia.org/wiki/Endometrium]. | — |
| myometrium | The smooth muscle coat of the uterus, which forms the main mass of the organ [Brenda]. | — |
| external acoustic meatus | The ear canal (external auditory meatus, external acoustic meatus) (meatus acusticus externus) , is a tube running from the outer ear to the middle ear. The adult human ear canal extends from the pinna to the eardrum and is about 35 mm in length and 5 to 10 mm in diameter [Wikipedia: http://en.wikipedia.org/wiki/Ear_canal]. | — |
| mammary gland | The specialized accessory gland of the skin of female mammals that secretes milk. In the human female, it is a compound tubuloalveolar gland composed of 15 to 25 lobes arranged radially about the nipple and separated by connective and adipose tissue, each lobe having its own excretory (lactiferous) duct opening on the nipple. The lobes are subdivided into lobules, with the alveolar ducts and alveoli being the secretory portion of the gland [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]. | — |
| 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]. | — |
| membranous labyrinth | The receptors for the senses of equilibrium and hearing are housed within a collection of fluid filled tubes and chambers known as the membranous labyrinth. The membranous labyrinth is lodged within the bony labyrinth and has the same general form; it is, however, considerably smaller and is partly separated from the bony walls by a quantity of fluid, the perilymph [Wikipedia: http://en.wikipedia.org/wiki/Membranous_labyrinth]. | — |
| cerebral cortex | The surface layer of gray matter of the cerebrum that functions chiefly in coordination of sensory and motor information [Brenda]. | — |
| basal nuclei | The basal ganglia (or basal nuclei) are a group of nuclei of varied origin in the brains of vertebrates that act as a cohesive functional unit. They are situated at the base of the forebrain and are strongly connected with the cerebral cortex, thalamus and other brain areas. The basal ganglia are associated with a variety of functions, including voluntary motor control, procedural learning relating to routine behaviors or "habits" such as bruxism, eye movements, and cognitive, emotional functions. Currently popular theories implicate the basal ganglia primarily in action selection, that is, the decision of which of several possible behaviors to execute at a given time. Experimental studies show that the basal ganglia exert an inhibitory influence on a number of motor systems, and that a release of this inhibition permits a motor system to become active. The "behavior switching" that takes place within the basal ganglia is influenced by signals from many parts of the brain, including the prefrontal cortex, which plays a key role in executive functions [Wikipedia: http://en.wikipedia.org/wiki/Basal_ganglia]. | — |
| 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]. | — |
| 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]. | — |
| epithalamus | The caudal part of the roof and the adjoining lateral walls of the third ventricle of the diencephalon, comprising the habenular nuclei and their commissure, pineal body, and commissure of the epithalamus [Brenda]. | — |
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