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Medical Dictionary Terms Beginning with H
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H and H
H and H: H and H, sometimes written as "H&H", is a popular shorthand for hemoglobin and hematocrit, two very common and important blood tests. Hemoglobin is the oxygen-carrying protein pigment in the blood, specifically in the red blood cells. In the tesmore detail info...
H. flu
H. flu: See Haemophilus influenzae type b.more detail info...
H. flu immunization
H. flu immunization: See HIB immunization.more detail info...
H. heilmannii
H. heilmannii: Short for Helicobacter heilmannii, a bacteria that infects most cats, dogs and pigs and, in them, causes stomach inflammation (gastritis). H. heilmannii is not usually transmitted from animals to people. But people who have been imore detail info...
Haemophilus influenzae (also H. flu)
Haemophilus influenzae (also H. flu): (Not the cause of influenza as it was once thought to be), H. flu is a bacteria capable of causing ear infections, meningitis, cellulitis (soft tissue infection), upper respiratory infections, pneumonia and other imore detail info...
Haemophilus influenzae type B immunization
Haemophilus influenzae type B immunization: See HIB immunization,more detail info...
Hair follicle
Hair follicle: A sac from which a hair grows.more detail info...
Hair, lanugal
Hair, lanugal: The downy hair on the body of the fetus and newborn baby. The lanugal hair (or lanugo) is the first hair to be produced by the fetal hair follicles. It is very fine, soft and usually is unpigmented. The lanugal hair is prenatal hair. Itmore detail info...
Hairy cell leukemia
Hairy cell leukemia: A rare type of chronic leukemia in which the abnormal white blood cells appear to be covered with tiny hairs. Hammer toe: A flexed (curly) toe but with no abnormal rotation of the toe. May require surgical correction.more detail info...
Hallux
Hallux:What the ancient Romans called the big toe.more detail info...
Hallux valgus
Hallux valgus: The big toe (the hallux) is bent outward (valgus) so it overlaps the 2nd toe. A bunion is a localized painful swelling at the base of the big toe that can accompany hallux valgus. It is frequently associated with inflammation. It cmore detail info...
Hallux varus
Hallux varus: An inward bending (varus) of the joint of the big toe (the hallux).more detail info...
Hamstring
Hamstring: The hamstrings are prominent tendons at the back of the knee. They are the sidewalls of the hollow behind the knee (the popliteal space). Both hamstrings connect to muscles that flex the knee. A pulled hamstring is a common athletic inmore detail info...
Hand-foot-and-mouth disease
Hand-foot-and-mouth disease: A viral syndrome with a rash on the hands and feet and in the mouth. The internal rash (the enanthem) consists of blisters and little ulcers that may involve not only the lining of the mouth but also the gums, palmore detail info...
Hand-foot-and-mouth syndrome
Hand-foot-and-mouth syndrome: A clinical pattern consisting of a rash on the hands and feet and in the mouth due to a viral infection. The internal rash (the enanthem) consists of blisters and little ulcers that may involve not only the lining omore detail info...
Hansen disease
Hansen disease: Leprosy.more detail info...
Hantavirus
Hantavirus: A group of viruses that cause hemorrhagic fever and pneumonia. The Hantaviruses include the Hantaan virus that causes Korean (and Manchurian) hemorrhagic fever. The Hantavirus Pulmonary Syndrome (HPS) struck the Four Corner area (whemore detail info...
Hantavirus pulmonary syndrome (HPS)
Hantavirus pulmonary syndrome (HPS) : This disease struck the Four Corners area (where the States of Arizona, New Mexico, Nevada and Utah meet) in 1993 with devastating, frequently fatal consequences. As the name indicates, it is due to a Hantavimore detail info...
Haploid
Haploid: A set of chromosomes with only one member of each chromosome pair. The sperm and egg are haploid and, in humans, have 23 chromosomes.more detail info...
Hard palate
Hard palate: The bony part of the roof of the mouth. The hard palate is the front of the palate and is in front of the soft palate.more detail info...
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