| white matter | White matter is one of the two components of the central nervous system and consists mostly of glial cells and myelinated axons that transmit signals from one region of the cerebrum to another and between the cerebrum and lower brain centers. White matter tissue of the freshly cut brain appears pinkish white to the naked eye because myelin is composed largely of lipid tissue veined with capillaries. Its white color is due to its usual preservation in formaldehyde. A 20 year-old male has around 176,000 km of myelinated axons in his brain [Wikipedia: http://en.wikipedia.org/wiki/White_matter]. | — |
| ciliary body | Tissue that includes the group of muscles that act on the eye lens to produce accommodation and the arterial circle of the iris. The inner ciliary epithelium is continuous with the pigmented retinal epithelium, the outer ciliary epithelium secretes the aqueous humour [Brenda]. | — |
| vulva | The vulva (from the Latin vulva, plural vulvae, see etymology) consists of the external genital organs of the female mammal. This article deals with the vulva of the human being, although the structures are similar for other mammals [Wikipedia: http://en.wikipedia.org/wiki/Vulva]. | — |
| ventricular system | The ventricular system is a set of structures containing cerebrospinal fluid in the brain. It is continuous with the central canal of the spinal cord [Wikipedia: http://en.wikipedia.org/wiki/Ventricular_system]. | — |
| left ventricle | The ventricles are the two lower chambers of the heart. The left ventricle is the chamber that receives blood from the left atrium and pumps it out under high pressure to the body via the aorta [Brenda]. | — |
| placenta | The vascular organ in mammals except monotremes and marsupials that unites the fetus to the maternal uterus and mediates its metabolic exchanges through a more or less intimate association of uterine mucosal with chorionic and usually allantoic tissues; also: an analogous organ in another animal [Brenda]. | — |
| cornea | The transparent part of the coat of the eyeball that covers the iris and pupil and admits light to the interior [Brenda]. | — |
| trabecular meshwork | The trabecular meshwork is an area of tissue in the eye located around the base of the cornea, near the ciliary body, and is responsible for draining the aqueous humor from the eye via the anterior chamber (the chamber on the front of the eye covered by the cornea) [Wikipedia: http://en.wikipedia.org/wiki/Trabecular_meshwork]. | — |
| sclera | The tough white outer coat of the eyeball, covering approximately the posterior five-sixths of its surface, and continuous anteriorly with the cornea and posteriorly with the external sheath of the optic nerve [Brenda]. | — |
| intermediomedial column | The term intermediomedial cell column refers to a cell column that occupies the medial portion of lamina VII along the central canal of the spinal cord (Anthoney-1994; Carpenter-1983) [BrainInfo: http://braininfo.rprc.washington.edu/centraldirectory.aspx?ID=1668]. | intermediomedial cell column; intermediomedial nucleus; nucleus intermediomedialis |
| accessory nucleus | The spinal accessory nucleus lies within the cervical spinal cord (C1-C5) in the ventral horn. The nucleus ambiguus is classically said to provide the "cranial component" of the accessory nerve [Wikipedia: http://en.wikipedia.org/wiki/Spinal_accessory_nucleus]. | — |
| cerebrospinal fluid | The serumlike fluid that circulates through the ventricles of the brain, the cavity of the spinal cord, and the subarachnoid space, functioning in shock absorption.nA liquid that is comparable to serum but contains less dissolved material, that is secreted from the blood into the lateral ventricles of the brain by the choroid plexus, circulates through the ventricles to the spaces between the meninges about the brain and spinal cord, and is resorbed into the blood through the subarachnoid sinuses, and that serves chiefly to maintain uniform pressure within the brain and spinal cord [Brenda]. | — |
| retina | The sensory membrane that lines the eye, is composed of several layers including one containing the rods and cones, and functions as the immediate instrument of vision by receiving the image formed by the lens and converting it into chemical and nervous signals which reach the brain by way of the optic nerve [Brenda]. | — |
| jejunum | The section of the small intestine that comprises the first two fifths beyond the duodenum and that is larger, thicker-walled, and more vascular and has more circular folds than the ileum [Brenda]. | — |
| renal vasculature | The renal arteries normally arise off the side of the abdominal aorta, immediately below the superior mesenteric artery, and supply the kidneys with blood. Each is directed across the crus of the diaphragm, so as to form nearly a right angle with the aorta [Wikipedia: http://en.wikipedia.org/wiki/Renal_artery]. | renal artery |
| prostate | The prostate (from Greek ÏÏοÏÏάÏÎ·Ï - prostates, literally "one who stands before", "protector", "guardian") is a compound tubuloalveolar exocrine gland of the male reproductive system in most mammals [Wikipedia: http://en.wikipedia.org/wiki/Prostate]. | — |
| prefrontal cortex | The prefrontal cortex is the anterior part of the frontal lobes of the brain, lying in front of the motor and premotor areas [Brenda]. | — |
| dorsolateral column | The posterolateral tract (fasciculus of Lissauer, Lissauer's tract, tract of Lissauer, dorsolateral fasciculus, dorsolateral tract, zone of Lissauer) is a small strand situated in relation to the tip of the posterior column close to the entrance of the posterior nerve roots [Wikipedia: http://en.wikipedia.org/wiki/Posterolateral_tract]. | posterolateral tract; fasciculus of Lissauer; Lissauer's tract; tract of Lissauer; dorsolateral fasciculus; dorsolateral tract; zone of Lissauer |
| diencephalon | The posterior subdivision of the forebrain [Brenda]. | — |
| anus | The posterior opening of the alimentary canal [Brenda]. | — |
| brain stem | The part of the brain composed of the mesencephalon, pons, and medulla oblongata and connecting the spinal cord with the forebrain and cerebrum [Brenda]. | — |
| chorion | The outer membrane of the two membranes enclosing the embryo in reptiles, birds, and mammals. In placental mammals it contributes to the development of the placenta [Brenda]. | — |
| external ear | The outer ear is the external portion of the ear, which consists of the pinna, concha, and external auditory meatus. It gathers sound energy and focuses it on the eardrum (tympanic membrane). One consequence of the configuration of the external ear is to selectively boost the sound pressure 30- to 100-fold for frequencies around 3 kHz. This amplification makes humans most sensitive to frequencies in this range - and also explains why they are particularly prone to acoustical injury and hearing loss near this frequency. Most human speech sounds are also distributed in the bandwidth around 3 kHz [Wikipedia: http://en.wikipedia.org/wiki/Outer_ear]. | — |
| auditory ossicle | The ossicles (also called auditory ossicles) are the three smallest bones in the human body. They are contained within the middle ear space and serve to transmit sounds from the air to the fluid-filled labyrinth (cochlea). The absence of the auditory ossicles would constitute a moderate-to-severe hearing loss. The term "ossicles" literally means "tiny bones" and commonly refers to the auditory ossicles, though the term may refer to any small bone throughout the body [Wikipedia: http://en.wikipedia.org/wiki/Ossicles]. | — |
| optic nerve | The optic nerve is the nerve that connects the eye to the brain and carries the impulses formed by the retina to the visual cortex of the brain [Brenda]. | — |
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