dorsal horn (root)
sensory root of a spinal nerve that carries impulses to the spinal cord; ventral root carries impulses from the cord
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
(Dorsalis Pedis Artery)
The arteria dorsalis pedis (Fig. 553), the continuation of the anterior tibial, ...
Dorsal vs Ventral Nerve Cords
Although their actions are similar, the distribution of these proteins in Drosophila differs from that in Xenopus (as well as in mammals and other vertebrates).
In Drosophila, ...
dorsal
double circulation
A circulation scheme with separate pulmonary and systemic circuits, which ensures vigorous blood flow to all organs.
dorsal root ganglion
a nerve trunk containing only sensory axons that enters the spinal cord near the dorsal surface.
dorsoventrally flattened
Flattened along the length of it's back ex. platyhelminths.
Covered in Lab 11 Animal Diversity I ...
dorsal view lateral view posterior view anterior view
Flexicalymene
A specimen of Flexicalymene from Ordovician-age rocks near Arnheim, Ohio. The family resemblance to Diacalymene is pretty obvious. This photo was taken by Rick Larush (rick@geo.
dorsal scapular artery
cervical nerve, dorsal scapular nerve
Elevates scapula, tilts its glenoid cavity inferiorly ...
dorsal The back of an animal; usually the upper surface; synonymous with posterior for animals that walk upright.
dorsal plate Dorsal plate on the body of a mesostigmatid mite.
double bond A covalent bond sharing two pairs of electrons.
nerve cord A dorsal tubular cord of nervous tissue above the notochord of a chordate.
Chordates have a dorsal rather than ventral nervous system. Several evolutionary trends occur in chordates: spinal cord, continuation of cephalization in the form of larger and more complex brains, and development of a more elaborate nervous system.
Their unique characteristics include (1) a dorsal hollow nerve cord (most other animals have a ventral nerve cord) above the notochord. At its anterior end, the nerve cord becomes enlarged to form the brain.
Dorsal (← links)
Caudal (← links)
Hillocks (← links)
Hillock (← links)
Stylo- (← links)
Succenturiate (← links)
Functional anatomy (← links)
Practical anatomy (← links)
Computerised axial tomography (← links) ...
For example, one way to get a ventral problem could be if we have too much signal coming from the dorsal side.
competentia - meeting together, agreement, symmetry] The ability or state which renders a cell capable of responding to an inductor or hormone The dorsal ectoderm of amphibian embryos displays competence for neural induction. [P.D.
a homeodomain transcription factor expressed in the dorsal lip of the blastopore; may be a key factor is specifying these cells as the organizer of the embryo.
somite - block of dorsal mesodermal cells adjacent to the notochord during vertebrate organogenesis.
Aorta: The front-most, non-pulsating portion of the dorsal blood vessel of an insect.
Arthropod: Any of the invertebrate animals (such as insects, spiders, or crustaceans) having an exoskeleton, a segmented body and jointed limbs.
The dorsal part of the diencephalon, the rostral most part of the brainstem, above the third ventricle. Embedded between the cerebral hemispheres, the thalamus is a very important relay for optic, auditory and cerebellum pathways ...
Chordata: A major phylum in the Kingdom Animalia. A chordate is characterized by the presence of a dorsal notochord at some stage of development and a dorsal hollow nerve chord.
An animal with a notochord (a cartilaginous rod that extends the length of the body), dorsal hollow nerve cord (a fluid-filled tube that runs the length of the body), gill slits or pouches, and a tail at some stage in its life cycle.
arista - a large bristle, located on the dorsal edge of the apical antennal segment in some Diptera (Glossary of PM) ...
Similar to convergent evolution, evolutionary relay describes how independent species acquire similar characteristics through their evolution in similar ecosystems, but not at the same time (dorsal fins of extinct ichthyosaurs and sharks).
It's all about having a series of nerves along your back (dorsal side). If you are an organism, you can't just have the nerves sitting there. You need to give those nerves support and protection.
 See also: Trans, Human, Class, Posterior, Lateral
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