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A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.

An antigenic mismatch between donor and recipient blood. Antibodies present in the recipient's serum may be directed against antigens in the donor pr…

Physiological processes and properties of the BLOOD.

PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.

The internal resistance of the BLOOD to shear forces. The in vitro measure of whole blood viscosity is of limited clinical utility because it bears l…

Volume of circulating BLOOD. It is the sum of the PLASMA VOLUME and ERYTHROCYTE VOLUME.

That portion of the electromagnetic spectrum with wavelengths between 450 to 495 nm. Exposure to blue light at night can suppress the secretion of me…

The relative amounts of various components in the body, such as percentage of body fat.

Deposits of ADIPOSE TISSUE throughout the body. The pattern of fat deposits in the body regions is an indicator of health status. Excess ABDOMINAL FA…

The distance from the sole to the crown of the head with body standing on a flat surface and fully extended.

An indicator of body density as determined by the relationship of BODY WEIGHT to BODY HEIGHT. BMI=weight (kg)/height squared (m2). BMI correlates wit…

The processes occurring in early development that direct morphogenesis. They specify the body plan ensuring that cells will proceed to differentiate,…

The physical measurements of a body.

The two dimensional measure of the outer layer of the body.

The measure of the level of heat of a human or animal.

The processes of heating and cooling that an organism uses to control its temperature.

The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms.

Sustaining BODY WEIGHT after BODY WEIGHT CHANGES have been achieved.

Measurements of the height, weight, length, area, etc., of the human and animal body or its parts.

The amount of mineral per square centimeter of BONE. This is the definition used in clinical practice. Actual bone density would be expressed in gram…

The growth and development of bones from fetus to adult. It includes two principal mechanisms of bone growth: growth in length of long bones at the e…

Renewal or repair of lost bone tissue. It excludes BONY CALLUS formed after BONE FRACTURES but not yet replaced by hard bone.

The continuous turnover of BONE MATRIX and mineral that involves first an increase in BONE RESORPTION (osteoclastic activity) and later, reactive BON…

A form of ensemble learning methods which combines weak learners to create strong ones, which reduces training errors and bias in the training models…

Changes in the amounts of various chemicals (neurotransmitters, receptors, enzymes, and other metabolites) specific to the area of the central nervou…

Endogenous repair and regeneration of the brain.

An interactive network between the GASTROINTESTINAL TRACT (gut) and the brain principally mediated through the ENTERIC NERVOUS SYSTEM. Control of the…

Baked food product made of flour or meal that is moistened, kneaded, and sometimes fermented. A major food since prehistoric times, it has been made …

The first meal of the day.

Measurement of relative composition of different BREAST tissue types often determined from MAMMOGRAPHY; ULTRASONOGRAPHY; or MRI.