Population Pyramid: From 1 Different Sources
A graphic presentation of the age and sex composition of the population.
A population in which the age and sex composition is known precisely, as a result of a census. A standard population is used as a comparison group in the procedure for standardizing mortality rates.... standard population
The group of persons for whom an intervention is planned. For example, the targeting of services to particular user groups.... targeting / target population / target group
See “population ageing”.... ageing of the population
A group of individuals or items that share one or more characteristics from which data can be gathered and analysed.... population
The increase over time in the proportion of the population of a specified older age.... population ageing
The study of changes in the number and composition of individuals in a population and the factors that influence those changes. Population dynamics involves five basic components of interest, to which all changes in populations can be related: birth, death, sex ratio, age structure and dispersal.... population dynamics
Health services targeted at populations with specific diseases or disorders.... population-based services
The base population from which a sample is drawn at the time of initial sampling. The standard against which a population that is being studied can be compared. See “population”.... reference population
n. 1. one of the conical masses that make up the medulla of the *kidney, extending inwards from a base inside the cortex towards the pelvis of the kidney. 2. one of the elongated bulging areas on the anterior surface of the *medulla oblongata in the brain, extending downwards to the spinal cord. 3. one of the divisions of the vermis of the *cerebellum in the middle lobe. 4. a protrusion of the medial wall of the vestibule of the middle ear.... pyramid
a type of neuron found in the *cerebral cortex, with a pyramid-shaped cell body, a branched dendrite extending from the apex towards the brain surface, several dendrites extending horizontally from the base, and an axon running in the white matter of the hemisphere.... pyramidal cell
a collection of nerve fibres in the central nervous system that extend from the *motor cortex in the brain to the spinal cord and are responsible for initiating movement. In the medulla oblongata the fibres form a *pyramid (hence the name), within which they cross from one side of the brain to the opposite side of the spinal cord; this is called the decussation of the pyramids. Damage to the pyramidal system manifests in a specific pattern of weakness in the face, arms, and legs, abnormally brisk reflexes, and an extensor *plantar reflex (Babinski response).... pyramidal system
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