Search results
Results From The WOW.Com Content Network
class The principal category for taxa ranking between division and order. clathrate Shaped like a net or lattice; pierced with apertures, as with a cage. clavate Club-shaped. clavuncula In the Apocynaceae, an enlarged, drum-shaped stigma of which the sides and lower surface are the receptive zones. Coherent with the anther s or not. claw 1.
In biology, a reflex, or reflex action, is an involuntary, unplanned sequence or action [1] and nearly instantaneous response to a stimulus. [2] [3] The simplest reflex is initiated by a stimulus, which activates an afferent nerve. The signal is then passed to a response neuron, which generates a response.
) reflex. The orienting response is a reaction to novel or significant stimuli. In the 1950s the orienting response was studied systematically by the Russian scientist Evgeny Sokolov , who documented the phenomenon called " habituation ", referring to a gradual "familiarity effect" and reduction of the orienting response with repeated stimulus ...
Abdominal reflex; Accommodation reflex — coordinated changes in the vergence, lens shape and pupil size when looking at a distant object after a near object. Acoustic reflex or attenuation reflex — contraction of the stapedius and tensor tympani muscles in the middle ear in response to high sound intensities.
Studies showed that after a 14-week resistance training regime, subjects expressed V-wave amplitude increases of ~50% and H-reflex amplitude increases of ~20%. [19] This showed that neural adaptation accounts for changes to functional properties of the spinal cord circuitry in humans without affecting organization of the motor cortex .
The strength of the optomotor response to different temporal frequencies for are state-dependent: stationary flies have a peak temporal frequency optima around 1 Hz, [16] [20] while walking flies have a peak behavior response to optic flow between 1–4 Hz [5] [21] [20] [16] and the optimal frequency during flight is much faster, between 3–12 ...
Each compartment corresponds to differences in function and structure. The first compartment is the outer segment (OS), where it is responsible for capturing light and transducing it. The second compartment is the inner segment (IS), which includes the necessary organelles that function in cellular metabolism and biosynthesis.
The optokinetic reflex (OKR), also referred to as the optokinetic response, or optokinetic nystagmus (OKN), is a compensatory reflex that supports visual image stabilization. [1] The purpose of OKR is to prevent motion blur on the retina that would otherwise occur when an animal moves its head or navigates through its environment.