ARC

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arc

 [ahrk]
a part of the circumference of a circle, or a regularly curved line.
binauricular arc the arc across the top of the head from one auricular point to the other.
reflex arc the circuit traveled by impulses producing a reflex action: receptor organ, afferent nerve, nerve center, efferent nerve, effector organ in a muscle; see also reflex.
Three-neuron reflex arc. From Dorland's, 2000.

ARC

Abbreviation for AIDS-related complex.

arc

(ark),
1. A curved line or segment of a circle.
2. Continuous luminous passage of an electric current in a gas or vacuum between two or more separated electrodes.
[L. arcus, a bow]

ARC

AIDS-related complex; American Red Cross; anomalous retinal correspondence.

arc

(ahrk)
1. a structure or projected path having a curved outline.
2. a visible electrical discharge taking the outline of an arc.
3. in neurophysiology, the pathway of neural reactions.

reflex arc  the neural arc utilized in a reflex action; an impulse travels centrally over afferent fibers to a nerve center, and the response outward to an effector organ or part over efferent fibers.
Enlarge picture
Three-neuron reflex arc.

ARC

abbr.
1. AIDS-related complex
2. American Red Cross

arc

Etymology: L, arcus, bow
a part of the circumference of a circle.

ARC

abbreviation for AIDS-related complex.

ARC

noun A part of the circumference of a circle; a curve.

Abbreviation for:
absolute reticulocyte count
Accreditation Review Committee
Accreditation Review Council
Addiction Research Centre
addict rehabilitation counsellor
age-related cataract
Ageing Research Centre
aggregate of red (blood) cells
AIDS-related complex
AIDS-related condition
alcohol rehabilitation centre
American Red Cross (see there)
annual rate of change
Annual Report on Carcinogens
antigen responsive cells
Application Review Committee
Arthritis Rehabilitation Centre
Arthritis and Rheumatism Council (Medspeak-UK)
Association for Retarded Citizens
Association pour Recherche du Cancer (see there)
atypical reparative changes
Australian Resuscitation Council

Genetics
ARC. A gene on chromosome 8q24.3 that encodes a protein required for consolidating synaptic plasticity and forming long-term memory, as well as in stress fibre dynamics and cell migration. It regulates endocytosis of AMPA receptors in response to synaptic activity, and is required for homeostatic scaling of AMPA receptors. ARC also plays a role in regulating cell morphology and cytoskeletal organisation. It is also an older gene symbol for what is now designated as NOL3, see there.

Neurology
noun A circuit or loop.
 
Sports medicine
verb To move with curved trajectory.

ARC

AIDS-related complex, also
1. American Red Cross, see there.
2. Association pour Recherche du Cancer, see there.

ARC

Abbreviation for AIDS-related complex.

arc

(ahrk)
1. A curved line or segment of a circle.
2. Continuous luminous passage of an electric current in a gas or vacuum between two or more separated carbon or other electrodes.
[L. arcus, a bow]

arc

(ark) [L. arcus, bow]
1. A curved line; a portion of a circle.
2. An electric spark, esp. in defibrillation or cardioversion, that follows an unwanted or potentially hazardous pathway.

nuclear arc

Spiral patterns on the surface of the lens due to a concentric pattern of fiber growth.

painful arc

A portion of the range of motion in which pain is perceived during active movement of an extremity. Pain is usually due to pinching of soft tissues at only a specific portion of the range of motion and may be caused by tendonitis or bursitis.
Enlarge picture
REFLEX ARC FOR PATELLAR TENDON REFLEX

reflex arc

The path followed by a nerve impulse to produce a reflex action. The impulse originates in a receptor at the point of stimulation, passes through an afferent neuron or neurons to a reflex center in the brain or spinal cord, and from the center out through efferent neurons to the effector organ, where the response occurs.
See: illustration

ARC

Acronym for
1. AIDS-RELATED COMPLEX. A lesser form of AIDS, often preceding the fully developed condition.

ARC

Abbreviation for AIDS-related complex.

arc

(ahrk)
1. A curved line or segment of a circle.
See: arch, arcus, arcade
2. Continuous luminous passage of an electric current in a gas or vacuum between two or more separated electrodes.
[L. arcus, a bow]

ARC,

n the abbreviation for AIDS-related complex. See also acquired immunodeficiency syndrome.

arc

a part of the circumference of a circle, or a regularly curved line.

binauricular arc
the arc across the top of the head from one auricular point to the other.
reflex arc
the circuit traveled by impulses producing a reflex action: from the receptor organ, through the afferent nerve, nerve center, efferent nerve, to the effector organ.