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Blastocladiomycota
|
D055133 |
[A phylum of flagellated fungi, formerly the order Blastocladiales under CHYTRIDIOMYCOTA.
] |
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Blastocyst
|
D001755 |
[A post-MORULA preimplantation mammalian embryo that develops from a 32-cell stage into a fluid-filled hollow ball of over a hundred cells. A blastocyst has two distinctive tissues. The outer layer of trophoblasts gives rise to extra-embryonic tissues. The inner cell mass gives rise to the embryonic disc and eventual embryo proper.
] |
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Blastocyst Inner Cell Mass
|
D053624 |
[The cluster of cells inside a blastocyst. These cells give rise to the embryonic disc and eventual embryo proper. They are pluripotent EMBRYONIC STEM CELLS capable of yielding many but not all cell types in a developing organism.
] |
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Blastocystina
|
D016843 |
[A suborder of protozoa of the class LOBOSEA.
] |
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Blastocystis
|
D016844 |
[A genus of protozoa of the suborder BLASTOCYSTINA. It was first classified as a yeast but further studies have shown it to be a protozoan.
] |
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Blastocystis Infections
|
D016776 |
[Infections with organisms of the genus BLASTOCYSTIS. The species B. hominis is responsible for most infections. Parasitologic surveys have generally found small numbers of this species in human stools, but higher positivity rates and organism numbers in AIDS patients and other immunosuppressed patients (IMMUNOCOMPROMISED HOST). Symptoms include ABDOMINAL PAIN; DIARRHEA; CONSTIPATION; VOMITING; and FATIGUE.
] |
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Blastocystis hominis
|
D016845 |
[A species of parasitic protozoa found in the intestines of humans and other primates. It was classified as a yeast in 1912. Over the years, questions arose about this designation. In 1967, many physiological and morphological B. hominis characteristics were reported that fit a protozoan classification. Since that time, other papers have corroborated this work and the organism is now recognized as a protozoan parasite of humans causing intestinal disease with potentially disabling symptoms.
] |
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Blastoderm
|
D001756 |
[A layer of cells lining the fluid-filled cavity (blastocele) of a BLASTULA, usually developed from a fertilized insect, reptilian, or avian egg.
] |
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Blastodisc
|
D054239 |
[A small whitish spot on the surface of the EGG YOLK where cleavage begins. Upon fertilization the cytoplasm streams from the vegetal pole away from the yolk to the animal pole where cleavage will occur. This germinal area eventually flattens into a layer of cells (BLASTODERM) that covers the yolk completely.
] |
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Blastomeres
|
D001757 |
[Undifferentiated embryonic cells, a term mostly used in foreign literature.
, Undifferentiated cells resulting from cleavage of a fertilized egg (ZYGOTE). Inside the intact ZONA PELLUCIDA, each cleavage yields two blastomeres of about half size of the parent cell. Up to the 8-cell stage, all of the blastomeres are totipotent. The 16-cell MORULA contains outer cells and inner cells.
] |
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Blastomyces
|
D001758 |
[A genus of onygenacetous mitosporic fungi whose perfect state is Ajellomyces (see ONYGENALES). The species Blastomyces dermatitidis (perfect state is Ajellomyces dermatitidis) causes blastomycosis.
] |
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Blastomycosis
|
D001759 |
[A fungal infection that may appear in two forms: 1, a primary lesion characterized by the formation of a small cutaneous nodule and small nodules along the lymphatics that may heal within several months; and 2, chronic granulomatous lesions characterized by thick crusts, warty growths, and unusual vascularity and infection in the middle or upper lobes of the lung.
] |
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Blastula
|
D036703 |
[An early non-mammalian embryo that follows the MORULA stage. A blastula resembles a hollow ball with the layer of cells surrounding a fluid-filled cavity (blastocele). The layer of cells is called BLASTODERM.
] |
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Blattellidae
|
D020048 |
[A family of insects in the order Dictyoptera (COCKROACHES), including genera Blattella, Parcoblatta, and Symploce.
] |
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Bleaching Agents
|
D057886 |
[Chemicals that are used to oxidize pigments and thus effect whitening.
] |
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Bleeding Time
|
D001760 |
[Duration of blood flow after skin puncture. This test is used as a measure of capillary and platelet function.
] |
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Bleomycin
|
D001761 |
[A complex of related glycopeptide antibiotics from Streptomyces verticillus consisting of bleomycin A2 and B2. It inhibits DNA metabolism and is used as an antineoplastic, especially for solid tumors.
] |
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Blepharitis
|
D001762 |
[Inflammation of the eyelids.
] |
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Blepharophimosis
|
D016569 |
[The abnormal narrowness of the palpebral fissure in the horizontal direction caused by the lateral displacement of the medial canthi of the eyelids. (Dorland, 27th ed)
] |
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Blepharoplasty
|
D019882 |
[Plastic surgery of the eyelid. (Cline et al., Dictionary of Visual Science, 4th ed)
] |
