Medical Dictionary Terms Beginning with P

Find a medical term by first letter:

<< Previous Page | Next Page >>

p arm of a chromosome

p arm of a chromosome: The short arm of a chromosome. The "p" comes from the French "petit" meaning small. All human chromosomes have 2 arms - the p (short) arm and the q (long) arm - that are separated from each other only by a primary constricti
more detail info...

---

p in biochemistry

p in biochemistry: The abbreviation for protein. For example, p53 is a protein (53 kilodaltons in size).
more detail info...

---

p in population genetics

p in population genetics: The frequency of the more common of two different alternative (allelic) versions of a gene. (The frequency of less common allele is q).
more detail info...

---

p53

p53: A protein (53 kilodaltons in size) produced by a tumor-suppressor gene. Like other tumor-suppressor genes, the p53 gene normally controls cell growth. If p53 is physically lost or functionally inactived, this allows cells to grow without restraint
more detail info...

---

PA

PA: A physician’s assistant (P.A.) or, in anatomy, PA stands for posteroanterior: from back-to-front. See: PA X-ray.
more detail info...

---

PA X-ray

PA X-ray: An X-ray picture in which the beams pass from back-to-front (posteroanterior). As opposed to an AP (anteroposterior) film in which the rays pass through the body from front-to-back.
more detail info...

---

Pacemaker, internal

Pacemaker, internal: A pacemaker sets the heart rate. An artificial pacemaker is a device that does this. It uses electrical impulses to regulate the heart rhythm or reproduce that rhythm. An internal pacemaker is one in which the electrodes into
more detail info...

---

Pachyonychia congenita of the Jadassohn-Lewandowsk

Pachyonychia congenita of the Jadassohn-Lewandowski type: This is a type of pachyonychia congenita (elephant nails from birth). The characteristic features include: Abnormally thick curved nails (onychogryposis) Thickening of the skin (hyperker
more detail info...

---

Pachyonychia congenita with natal teeth

Pachyonychia congenita with natal teeth: This is a type of pachyonychia congenita (elephant nails from birth) in which teeth are evident at birth. It is called the Jadassohn-Lewandowski syndrome. The characteristic features include: Abnormall
more detail info...

---

Pachyonychia congenita, type 1

Pachyonychia congenita, type 1: This is a form of pachyonychia congenita (elephant nails from birth) in which teeth are evident at birth. It is called the Jadassohn-Lewandowski syndrome. The characteristic features include: Abnormally thick cu
more detail info...

---

Paediatrics

Paediatrics: Pediatrics in Great Britain.
more detail info...

---

Paget's disease

Paget's disease: A condition of unknown cause in which the bone formation is out of synchrony with normal bone remodeling.
more detail info...

---

Pain

Pain: It may seem ludicrous to define a sensation that most everyone has experienced (except, for example, people born with complete insensitivity to pain). One standard reference work defines pain as a &more or less localized sensation of discomf
more detail info...

---

Pain, abdominal

Pain, abdominal: Pain in the belly.
more detail info...

---

Pain, ankle

Pain, ankle: The ankle is a &hinged& joint. The severity of ankle sprains ranges from mild (which can resolve within 24 hours) to severe (which can require surgical repair). Tendinitis of the ankle can be caused by trauma or inflammatory arth
more detail info...

---

Pain, back

Pain, back: Symptoms in the low back can relate to the bony lumbar spine, discs between the vertebrae, ligaments around the spine and discs, spinal cord and nerves, muscles of the low back, internal organs of the pelvis and abdomen, and the skin coveri
more detail info...

---

Pain, chest

Pain, chest: Chest pain has many cause. One celebrated cause is angina which results from inadequate oxygen supply to the heart muscle due to coronary artery disease or spasm of the coronary arteries. Treatment of angina includes rest, medication, angi
more detail info...

---

Pain, elbow

Pain, elbow: Tendinitis can affect the inner or outer elbow. Treatment includes ice, rest, and medication for inflammation. Bacteria can infect the skin of a scraped (abraded) elbow and cause pain.
more detail info...

---

Pain, knee

Pain, knee: Causes of knee pain include injury, degeneration, arthritis, infrequently infection and rarely bone tumors.
more detail info...

---

Pains, growing

Pains, growing: Mysterious pains in growing children, usually in the legs. These pains are similar to what the weekend gardener suffers from on Monday—an overuse type of problem. If in playing, children exceed their regular threshold, they will be
more detail info...

---

<< Previous Page | Next Page >>