dorsal

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dorsal

 [dor´sal]
directed toward or situated on the back surface, as opposed to ventral. See also posterior.

dor·sal

(dōr'săl),
1. Pertaining to the back or any dorsum. Synonym(s): tergal
2. Synonym(s): posterior (1)
3. In veterinary anatomy, pertaining to the back or upper surface of an animal. Often used to indicate the position of one structure relative to another; that is, nearer the back surface of the body.
4. Old term meaning thoracic, in a limited sense; for example, dorsal vertebrae.
[Mediev. L. dorsalis, fr. dorsum, back]

dorsal

/dor·sal/ (dor´s'l)
1. pertaining to the back or to any dorsum.
2. denoting a position more toward the back surface than some other object of reference; a synonym of posterior in human anatomy and of superior in the anatomy of quadrupeds.

dorsal

(dôr′səl)
adj.
1. Anatomy Of, toward, on, in, or near the back or upper surface of an organ, part, or organism.
2. Botany Of or on the surface of an organ or part facing away from the axis; abaxial.

dor′sal·ly adv.

dorsal

[dôr′səl]
Etymology: L, dorsum, the back
pertaining to the back or posterior. Compare ventral. See also dorsiflect. dorsum, n.

dor·sal

(dōr'săl)
1. Pertaining to the back or any dorsum.
2. Synonym(s): posterior (2) .
[Mediev. L. dorsalis, fr. dorsum, back]

dorsal

Relating to the back or towards the back. Compare VENTRAL.

dorsal

  1. (of an animal) the part that normally occurs uppermost. The back of an animal is called the dorsal surface. In primates in the upright position the dorsal surface is directed backwards.
  2. (of a plant) of, or situated on the side of an organ that is directed away from the axis. See also DORSIVENTRAL LEAF.

dorsal

at or towards the back of the body (opposite of ventral), referring to the embryological history of the surfaces. In the 'anatomical position' the palms face forwards and dorsal applies to the back of the hands and arms.

dorsal

relating to back or posterior aspect

dorsal (dōrˑ·sl),

adj pertaining to the back of the body or the top of the foot.

dorsal

Relating to either the back (posterior), or to the top in brain orientation. See magnocellular visual system; ventral.

dor·sal

(dōr'săl)
Pertaining to the back or any dorsum.
[Mediev. L. dorsalis, fr. dorsum, back]

dorsal (dôr´səl),

adj pertaining to the back or to the posterior part of an organ.

dorsal

directed toward or situated on the back surface, the surface facing away from the ground; opposite the ventral.

dorsal column system
the sensory tracts in the dorsal funiculus of the spinal cord, consisting of the fasciculus gracilis and fasciculus cuneatus.
dorsal metacarpal disease
a range of compressive stress lesions of the cortex of the third metacarpal bone of young racing horses; includes bucked shins, incomplete cortical fracture.
dorsal recumbency
see dorsal recumbency.
dorsal respiratory group
that part of the respiratory center which is located in the dorsal medulla oblongata.
dorsal stripe
the dark brown mark that runs along the middle of the back from the poll to the butt of the tail in donkeys, mules, yellow dun horses and primitive horses and ponies.

Patient discussion about dorsal

Q. Is there any reason behind this? a bipolar woman is mostly misdiagnosed for depression…..is there any reason behind this?

A. freebrid12 is right, and there's another thing- depression is a very common diagnosis amongst women and bipolar is less common. therefore psychiatrist tend to diagnose depression more then bipolar disorder.

Q. I have been having chronic pain in sinus area and behind my eyes, been to ENT who states it is not infection? I wake up with the pain and go to sleep in severe pain. Its all day and all night. Dr insists that its migraine related and allergy related. I have chronic postnasal drainage. It started 4 months ago when I moved into our new house. The pain makes me extremely fatigue and dizzy at times. I have been referred to the eye doctor, a headache specialist and an allergy specialist. Just recently I have had a CT scan and an MRI, as well as xrays of my sinus. Nothing other than a deviated septum and possible allergies from an ENT has been diagnosed. In the mean time I am waiting for the days to come when I can get into see these specialist. Anyone out there have any of the same symptoms?? Need help here. Soooooo sick of the pain.

A. i have chronic sinusitis and can really relate to what you describe. learned to live with the pain...but still, i use various ways to reduce inflammation in my sinuses, i heat the place up before going to sleep, try to avoid eating or drinking cold stuff.
another thing i do is i heat water (80c) then add a special oil i bought in a chinese medicine store , about 5 drops, and inhale the fumes. nettle tea can do wonders too.

Q. info on arachnoid cyst in the right posterior fossa

A. Basically it's like a small sac filled with fluid. The problem is that the skull is a rigid closed space, which means that if there's something other than the brain, it'll occupy space, usually on expense of the brains' space. These kinds of problems are often referred to as "space occupying lesion".

It's usually congenital (i.e. develops during pregnancy), and even when it cause symptoms they develop slowly.

YOu can read more here (http://en.wikipedia.org/wiki/Arachnoid_cyst)

More discussions about dorsal
References in periodicals archive ?
As stated above, Leptotyphlops dulcis iversoni (Sample 10) has total dorsal scale numbers similar to those of L.
In addition, there is little overlap in the number of dorsal scales between the two taxa (Figure 2, Tables 1, 2).
Klauber (1940) reported that the width of the fifth dorsal (counted from the rostral) was usually wider than the fourth in L.
They resemble typical Leptotyphiops dulcis in color, with a 1/i supraocular condition, no split occipital scales, and dorsal scale counts varying from 222 to 240 (mean 231.
Dorsal-fin rays 10-12, rarely 10; anal-fin rays 11-13, rarely 11; total caudal-fin rays 40-41; dorsal segmented caudal rays 9-10; ventral segmented caudal rays 9; dorsal procurrent caudal rays 11-12; ventral procurrent caudal rays 11; pectoral-fin rays 11-13, pelvicfin rays 8; total vertebrae 59-62; predorsal vertebrae 17-19; scales ctenoid; pored lateral-line scales 59-63, modally 60; median predorsal scales 20-30; scale rows above the lateral line to dorsal-fin base 5.
1%), snout long and pointed, tip rounded in dorsal view; orbit diameter 3.
Anterior nostril on level with median axis of orbit; posterior nostril same size and situated slightly dorsal to anterior nostril, nostrils almost on dorsal surface of snout; anterior nostril with small, triangular flap, length of flap when depressed 0.
Dorsal and anal fins each flanked basally by 8-10 half scales, remainder of dorsal and anal fins without scales; 3 large, diamond-shaped scales covering pelvic-fin base, pelvic-fins flanked by a row of 4-6 half-scales laterally, remainder of pelvic fin and pectoral fin without scales; 7-9 rows of body scales extending onto base of caudal fin; upper and lower caudal lobes each with a single, enlarged, horizontally elongate scale.
Fins and girdles: Each spine of first dorsal supported by individual basal radial comprising fused proximal and medial elements.
Pectoral fin with four proximal radials supporting fin rays, dorsal radial fused to scapula (Fig.
0 = anterior vertebral dorsal postzygapophyses well defined; 1 = processes not defined).
Some of the character states in Notocheirus (including lack of first dorsal, mesethmoid, first epibranchial and epural) could be interpreted as paedomorphism (eg.