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In the fingertips and lips, innervation density of slowly adapting type I and rapidly adapting type I mechanoreceptors are greatly increased. These two types of mechanoreceptors have small discrete receptive fields and are thought to underlie most low-threshold use of the fingers in assessing texture, surface slip, and flutter.
The pterostigma, a heavier section of the wing than nearby sections, assists in gliding. Without the pterostigmata, self-exciting vibrations known as flutter would set in on the wing above a certain critical speed, making gliding impossible. Tests show that with the pterostigmata, the critical gliding speed is increased 10–25% on one species ...
Superficial anatomy of female and male human body Surface projections of the major organs of the trunk, using the vertebral column and rib cage as main reference points of superficial anatomy Surface anatomy , or superficial anatomy, is the study of anatomical landmarks that can be identified readily from the contours or other reference points ...
Cell physiology – Study of cell activity; Comparative anatomy – Study of similarities and differences in the anatomy of different species; Comparative physiology – Study of the diversity of functional characteristics of organisms. Development of the human body – Process of human growth to maturity; Glossary of medicine
The navel is the centre of the circle in this drawing of the Vitruvian Man by Leonardo da Vinci.. The umbilicus is used to visually separate the abdomen into quadrants. [2] ...
In a linear system, "flutter point" is the point at which the structure is undergoing simple harmonic motion—zero net damping—and so any further decrease in net damping will result in a self-oscillation and eventual failure. "Net damping" can be understood as the sum of the structure's natural positive damping and the negative damping of ...
An insect uses its digestive system to extract nutrients and other substances from the food it consumes. [3]Most of this food is ingested in the form of macromolecules and other complex substances (such as proteins, polysaccharides, fats, and nucleic acids) which must be broken down by catabolic reactions into smaller molecules (i.e. amino acids, simple sugars, etc.) before being used by cells ...
Diagram of a typical insect leg The typical and usual segments of the insect leg are divided into the coxa, one trochanter , the femur, the tibia, the tarsus, and the pretarsus . The coxa in its more symmetrical form, has the shape of a short cylinder or truncate cone, though commonly it is ovate and may be almost spherical.