| 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]. | — |
| 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]. | — |
| 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]. | — |
| phrenic nucleus | A nucleus comprised of motor neurones located in medial areas of the ventral horn of the spinal cord from about C3 to C6; axons of neurones in this nucleus innervate the diaphragm [Mondofacto: http://www.mondofacto.com/facts/dictionary?phrenic+nucleus]. | — |
| penis | A male organ of copulation that in male mammals including humans usually functions as the channel by which urine leaves the body [Brenda]. | — |
| parotid gland | Either of a pair of large serous salivary glands situated below and in front of the ear [Brenda]. | — |
| ovary | One of the typically paired essential female reproductive organs that produce eggs and in vertebrates female sex hormones [Brenda]. | — |
| 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]. | — |
| nucleus thoracicus | Clarke's column (column of Clarke, dorsal nucleus, posterior thoracic nucleus) is a group of interneurons found in Lamina VII, also known as the intermediate zone, of the spinal cord [Wikipedia: http://en.wikipedia.org/wiki/Posterior_thoracic_nucleus]. | posterior thoracic nucleus; Clarke's column; column of Clarke; dorsal nucleus; posterior thoracic nucleus |
| nucleus proprius | The Nucleus proprius is a layer of the spinal cord adjacent to the substantia gelatinosa. Nucleus proprius constitutes the bulk of the dorsal horn and receives inputs from the dorsal root ganglions that carry sensory information, such as light touch, as well as pain and temperature information. Cells in this nucleus project to deeper laminae of the spinal cord, to the posterior column nuclei, and to other supraspinal relay centers including the midbrain, thalamus, and hypothalamus. Rexed laminae III, IV, and V make up the nucleus proprius [Wikipedia: http://en.wikipedia.org/wiki/Nucleus_proprius_of_spinal_cord]. | — |
| neuron | A grayish or reddish granular cell with specialized processes that is the fundamental functional unit of nervous tissue [Brenda]. | — |
| nephron | A single excretory unit of the vertebrate kidney [Brenda]. | — |
| milk | A fluid secreted by the mammary glands of females for the nourishment of their young; especially: cow's milk used as a food by humans [Brenda]. | — |
| middle ear | The cavity in the temporal bone comprising the cavitas tympani, adnexa mastoidea, and tuba auditiva [Brenda]. | — |
| meninges | The meninges (singular meninx from the Greek μá¿Î½Î¹Î³Î¾, "membrane") is the system of membranes which envelopes the central nervous system. In mammals, the meninges consist of three layers: the dura mater, the arachnoid mater, and the pia mater. The primary function of the meninges and of the cerebrospinal fluid is to protect the central nervous system [Wikipedia: http://en.wikipedia.org/wiki/Meninges]. | — |
| lumbosacral nucleus | — | — |
| lens | A highly transparent biconvex lens-shaped or nearly spherical body in the eye that focuses light rays (as upon the retina) [Brenda]. | — |
| 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]. | — |
| lateral column | In the thoracic region, the postero-lateral part of the anterior column projects lateralward as a triangular field, which is named the lateral column (lateral cornu, lateral horn) [Wikipedia: http://en.wikipedia.org/wiki/Lateral_horn_of_spinal_cord]. | — |
| lacrimal gland | The lacrimal glands are paired almond-shaped glands, one for each eye, that secrete the aqueous layer of the tear film. They are situated in the upper, outer portion of each orbit, in the lacrimal fossa of the orbit formed by the frontal bone. Inflammation of the lacrimal glands is called dacryoadenitis. The lacriminal gland produces tears which then flow into canals that lead to the lacriminal sac. From this sac, the tears drain through a passage into the nose [Wikipedia: http://en.wikipedia.org/wiki/Lacrimal_gland]. | — |
| 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]. | — |
| iris | The circular pigmented membrane behind the cornea, perforated by the pupil; the most anterior portion of the vascular tunic of the eye, it is made up of a flat bar of circular muscular fibers surrounding the pupil, a thin layer of smooth muscle fibers by which the pupil is dilated, thus regulating the amount of light entering the eye, and posteriorly two layers of pigmented epithelial cells [Brenda]. | — |
| internal ear | The inner ear is the innermost part of the vertebrate ear. In mammals, it consists of the bony labyrinth, a hollow cavity in the temporal bone of the skull with a system of passages comprising two main functional parts: (1) The cochlea, dedicating to hearing; converting sound pressure impulses from the outer ear into electrical impulses which are passed on to the brain via the auditory nerve. (2) The vestibular system, dedicated to balance [Wikipedia: http://en.wikipedia.org/wiki/Inner_ear]. | inner ear |
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