Antegrade amnesia
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  Antegrade amnesia



Antegrade amnesia

   Amnesia in which the loss of memory relates to events that occur after a traumatic event. There is inability to recall new information. Old information can be recalled. Antegrade amnesia may follow brain trauma. Also called anterograde amnesia. This type of amnesia is in contrast to retrograde amnesia in which the lack of memory relates to events that occurred before a traumatic event.

RELATED TERMS
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Amnesia
Loss of memory. Types of amnesia include: anterograde Loss of memory of events that occur after the onset of the etiological condition or agent. retrograde Loss of memory of events that occurred before the onset of the etiological condition or agent.

Memory
In the immune system, memory denotes an active state of immunity to a specific antigen, such that a second encounter with that antigen leads to a larger and more rapid response.

Event
A set of outcomes. Cardiovascular events might include a heart attack and gastrointestinal events a GI bleed. The use of the term "event" in medicine comes from probability theory.

Antegrade
Forward-moving. As in blood flow. Sometimes synonymous with anterograde.

Brain
"That part of the central nervous system that is located within the cranium (skull). The brain functions as the primary receiver, organizer and distributor of information for the body. It has two (right and left) halves called ""hemispheres."" "

Trauma
Injury caused by external force, chemical, temperature extremes, or poor tooth alignment.

Anterograde
Moving forward or extending forward. Anterograde memory is memory for what occurs after an event such as an accident. Also called antegrade. From the Latin antero- + gredior (to step or go).

Contrast
"Short for ""contrast media."" Contrast media are X-ray dyes used to provide contrast, for example, between blood vessels and other tissue."



SIMILAR TERMS
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Ante mortem
Before death.

Antean
Exceptionally strong or large. A multi-vitamin pill may, for example, be of Antean proportions.

Antegrade
Forward-moving. As in blood flow. Sometimes synonymous with anterograde.

Antelope Valley Hospital Medical Center
Antelope Valley Hospital Medical Center is a hospital in Lancaster, California (USA).

Antenatal surgery
The surgical treatment of the fetus before birth. Also called prenatal surgery or, most often, fetal surgery.

Antepar
Antepar is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): piperazine citrate.

Antepartum
Occurring before delivery of a baby.

Anterior
The front, as opposed to the posterior. The anterior surface of the heart is toward the breast bone (the sternum).

Anterior chamber
"The space in the eye that is behind the cornea and in front of the iris. The cornea is the outer, transparent, dome-like structure that covers the iris, pupil, and the anterior chamber. The iris is the colored ring of tissue suspended behind the cornea and immediately in front of the lens; it regulates the amount of light entering the eye by adjusting the size of the pupil. The anterior chamber is filled with a watery fluid known as the aqueous humor, or aqueous. Produced by a structure alongside the lens called the ciliary body, the aqueous passes first into the posterior chamber (between the lens and iris) and then flows forward through the pupil into the anterior chamber of the eye."

Anterior cruciate injury
A knee injury involving the anterior cruciate ligament (ACL). The ACL runs diagonally across the front of the knee from the underside of the femur (the thigh bone) to the top of the tibia (the bigger bone in the lower leg).

Anterior cruciate ligament
ligament in the knee that crosses from the underside of the femur (the thigh bone) to the top of the tibia (the bigger bone in the lower leg). Abbreviated ACL. Injuries to the ACL can occur in a number of situations, including sports, and can be quite serious, requiring surgery.

Anterior pituitary
The front portion of the pituitary, a small gland in the head called the master gland. Hormones secreted by the anterior pituitary influence growth, sexual development, skin pigmentation, thyroid function, and adrenocortical function. These influences are exerted through the effects of pituitary hormones on other endocrine glands except for growth hormone which acts directly on cells. The effects of underfunction of the anterior pituitary include growth retardation (dwarfism) in childhood and a decrease in all other endocrine gland functions normally under the control of the anterior pituitary (except the parathyroid glands). The results of overfunction of the anterior pituitary include overgrowth (gigantism) in children and a condition called acromegaly in adults.

Anterior position
When the baby faces the back of the mother's pelvis in utero and/or during labor.

Anterior teeth
The six upper or six lower front teeth.

Anterior tongue
The front two-thirds of the tongue. In contrast to the base of the tongue, which is the back third. The distinction between the anterior and base of the tongue reflects the fact that they are of different embryological origin. The distinction also matters as regards cancer. See: Tongue cancer.

Antero-
Prefix signifying before, earlier, front. From the Latin anterior meaning before.

Anterograde
Moving forward or extending forward. Anterograde memory is memory for what occurs after an event such as an accident. Also called antegrade. From the Latin antero- + gredior (to step or go).

Anterograde amnesia
See: Antegrade amnesia.

Anterograde memory
Loss of short-term memory with retention of memories from the distant past (long-term memory).

Anteroposterior
From front to back. When a chest x-ray is taken with the back against the film plate and the x-ray machine in front of the patient it is called an anteroposterior (AP) view. As opposed to from back to front (which is called posteroanterior).

Anteroposterior (AP)
In anatomy, AP stands for anteroposterior: from front-to-back. For example, an AP X-ray of the chest is taken from front-to-back. AP in this respect is the opposite of PA, which stands for posteroanterior: from back-to-front.



PREVIOUS AND NEXT TERMS
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Anoxic
Pertaining to anoxia, an absence or near absence of oxygen.

Ant, fire
Also called thief ants, a scourge, these red or yellow ants of small-to-medium size, originally from South America, have a severe sting that burns like fire and can trigger an allergic reaction. Avoidance and prompt treatment are essential.

Antagonist
"In biochemistry, an antagonist acts against and blocks an action. For example, insulin lowers the level of glucose (sugar) in the blood, whereas another hormone called glucagon raises it; therefore, insulin and glucagon are antagonists. An antagonist is the opposite of an agonist which stimulates an action. Antagonists and agonists are key players in pharmacology and in the chemistry of the human body."

Antean
Exceptionally strong or large. A multi-vitamin pill may, for example, be of Antean proportions.

Antegrade
Forward-moving. As in blood flow. Sometimes synonymous with anterograde.

Antegrade amnesia

Antenatal surgery
The surgical treatment of the fetus before birth. Also called prenatal surgery or, most often, fetal surgery.

Anterior
The front, as opposed to the posterior. The anterior surface of the heart is toward the breast bone (the sternum).

Anterior chamber
"The space in the eye that is behind the cornea and in front of the iris. The cornea is the outer, transparent, dome-like structure that covers the iris, pupil, and the anterior chamber. The iris is the colored ring of tissue suspended behind the cornea and immediately in front of the lens; it regulates the amount of light entering the eye by adjusting the size of the pupil. The anterior chamber is filled with a watery fluid known as the aqueous humor, or aqueous. Produced by a structure alongside the lens called the ciliary body, the aqueous passes first into the posterior chamber (between the lens and iris) and then flows forward through the pupil into the anterior chamber of the eye."

Anterior cruciate injury
A knee injury involving the anterior cruciate ligament (ACL). The ACL runs diagonally across the front of the knee from the underside of the femur (the thigh bone) to the top of the tibia (the bigger bone in the lower leg).

Anterior cruciate ligament
ligament in the knee that crosses from the underside of the femur (the thigh bone) to the top of the tibia (the bigger bone in the lower leg). Abbreviated ACL. Injuries to the ACL can occur in a number of situations, including sports, and can be quite serious, requiring surgery.

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