capillary bed


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bed

 [bed]
1. a supporting structure or tissue.
2. a couch or support for the body during sleep.
bed blocks square pieces of wood placed under the legs of a bed to change its incline; frequently used when a patient is in traction.
capillary bed the capillaries of a tissue, area, or organ considered collectively, and their volume capacity.
CircOlectric bed [ser″ko-lek´trik] an electrically operated frame similar in principle to the stryker frame. It can be rotated so that the patient is in a prone, supine, or erect position; this facilitates turning of patients with severe burns, those in some types of traction, or those with various types of spinal injuries.
Clinitron bed fluidized air bed.
bed cradle a frame placed over the body of a patient in bed for application of heat or cold or for protecting injured parts from coming into contact with the bed clothes. Cradles vary in size according to their intended purpose and can be used over the entire body or over one or more of the limbs.
flotation bed a waterbed or other fluid-filled mattress that distributes body weight evenly to minimize prolonged pressure in one area; used for immobilized or burned patients to prevent pressure ulcers.
fluidized air bed a bed that minimizes pressure and distributes weight evenly over the support surface. A gentle flow of temperature-controlled air is projected upward through numerous tiny openings called ceramic microspheres. Called also Clinitron bed.
Clinitron bed or fluidized air bed. From Elkin et al., 2000.
Gatch bed a bed fitted with jointed springs, which may be adjusted to various positions.
nail bed the area of modified epidermis beneath the nail over which the nail plate slides as it grows.
Roto Rest bed trademark for an oscillating hospital bed used in the treatment of a variety of neurological conditions in which the patient must be kept still and in alignment. The bed can rock slowly back and forth, thereby preventing some hazards of immobility. The patient is kept in place with a system of belts and specially designed pillows and packs.
ROTO REST kinetic treatment table. ROTO REST is Kinetic Concepts' trademark for its oscillating bed. Courtesy of Kinetic Concepts, San Antonio, TX.
vascular bed the sum of the blood vessels supplying an organ or region.

cap·il·lar·y bed

the capillaries considered collectively and their volume capacity for blood.

capillary bed

n.
The network of capillaries in a particular area or organ of the body.

cap·il·lar·y bed

(kap'i-lār-ē bed)
The capillaries considered collectively and their volume capacity for blood.

capillary bed

a fine network of blood CAPILLARIES which extends throughout each tissue, enabling efficient exchange of materials between cells and the blood. See ARTERIOLE and Fig. 48 .

Capillary bed

A dense network of tiny blood vessels that enables blood to fill a tissue or organ.
References in periodicals archive ?
Alternatively if reported peripheral vascular improvements are the result of increased arterial flow, the increased pressure gradient across the capillary bed might be expected to exacerbate the symptoms of lymphedema due to increased interstitial leakage; a differentiation not possible in a pilot study of normal volunteers.
Blood flow into capillary beds is regulated by smooth muscle cells called precapillary sphincters.
While the former described villous capillary as a long non-branched garland running through grape-like arranged terminal villi, the latter shows a complicated, richly ramified capillary bed of terminal villi connected with dense paravascular capillaries of mature intermediate villi.
Technetium-labeled albumin macro aggregates usually are trapped in the pulmonary capillary bed, and is used for Ventilation-Perfusion (V/Q) scanning procedures.
The arrangement of the tubule vasculature in the medulla creates a low flow/high perfusion state (by having dense capillary beds) that facilitates efficient countercurrent exchange and maintains the differentiation of solute concentrations within the interstitium of the medulla.
Oedema of fovea due to loss of the perifoveal capillary bed is commonly seen in juvenile onset diabetes.
Here, [P.sub.cap_1] and [P.sub.ven_1] refer, respectively, to the blood pressure in the lower-body capillary bed and the veins; [C.sub.cap_1], [P.sub.cap_1], and [L.sub.cap_1] represent, respectively, the compliance, viscous resistance, and blood inertance of the lower-body capillary bed; [Q.sub.cap_1] and [Q.sub.cap_1] denote the blood flow rates through the lower-body capillary bed and the upstream arteriolar bed, respectively.
54, Oct., 1 983, and might be explained by the pressure-volume relationship of the normal pulmonary capillary bed. On the other hand significant mechanical resistance against the patient's inspiratory effort has been shown to decrease DLCO results.
The macula is supplied by a very intricate capillary bed, which is readily subject to damage through a range of vascular diseases, often in combination.
Some blood enters so-called short portal vessels, which are sinusoidal vessels that converge on a capillary bed in the anterior pituitary gland.
That is, however, not the case because blood obtai ned by skin p;uncture is knot actgually pure capillary blood but a mixture of blood from punctured arterioles, capillaries, and venules (along with a small but variable contribution of interstitial fluid and intracellular fluid from damaged tissue cells).(9) Due to the relative high pressure kon the arterial side of the circulation, this blood mixture contains a relatively greater proportion of blood from the arteriole side of the capillary bed than from the venule side; and, thus, a "capillary-blood" sample obtained by skin puncture approximates closer to arterial blood than venous blood.
The nonsecreted VEGF 188 increases the concentration locally and works cooperatively with VEGF120 to expand the capillary bed. VEGF164 is capable of recruiting vessels with its partial diffusible property and vascularizing the tumor with its partial nonsecreted property.