Horizontal Cells Horizontal cells, also known as H-cells, are specialized neurons found in the retina of the vertebrate eye. They are named so due to their distinctive horizontal orientation within the retinal neural circuitry. Horizontal cells mediate lateral interactions between photoreceptor cells and bipolar cells, allowing for modulation of signals and enhancing spatial contrast and […]
Homunculus The term “homunculus” refers to a concept in alchemy, magic, and metaphysics where a miniature, humanoid creature is created through artificial means. Etymology The word “homunculus” is derived from the Latin term “homunculus,” meaning “little man.” It was first used in the medieval period to describe the creation of a human-like being through artificial
Homozygous Homozygous refers to the genetic condition in which an individual inherits two copies of the same allele for a specific gene. Definition and Explanation In genetics, alleles are alternate forms of a gene that can exist at a specific location on a chromosome. Homozygosity occurs when an individual carries two identical alleles, either dominant
Homosexuality Definition: Homosexuality refers to the sexual or romantic attraction, desire, or behavior between individuals of the same sex. Nature: Homosexuality is considered a natural variation of human sexuality, with individuals identifying as homosexual or gay. Orientation: Homosexuality is an enduring pattern of emotional, romantic, and/or sexual attractions primarily to people of the same sex.
Definition of Homosexual Panic: Homosexual Panic refers to a psychological phenomenon characterized by intense anxiety, fear, or distress experienced by individuals in relation to homosexuality or homosexual behavior. It typically occurs when individuals who identify as heterosexual encounter distressing thoughts, feelings, or situations related to homosexuality, often leading to a range of negative emotions and
Definition: Homophobia is a prejudiced and irrational fear, hatred, or aversion towards lesbian, gay, bisexual, transgender, and queer (LGBTQ+) individuals or those perceived to be a part of the LGBTQ+ community. Key Components: Fear: Homophobia often stems from an irrational fear of homosexuality or same-sex attraction. Prejudice: It involves holding negative attitudes, beliefs, or stereotypes
Definition: Homologous refers to the state of similarity or corresponding structures found in different organisms, indicating their evolutionary relationship. These similarities can be observed in anatomical structures, genetic sequences, or developmental patterns. Anatomical Homology: Anatomical homology refers to the presence of similar structures in different species, suggesting a common ancestor. These structures may have different
Homogamy Definition: Homogamy refers to the tendency of individuals to form relationships and marry individuals who have similar traits, characteristics, and socioeconomic background. Subtitles: Overview Homogamy is a concept typically used in sociology and psychology to understand the patterns of mate selection and marriage. It suggests that individuals tend to choose partners who share similar
Definition: The concept of homeostasis refers to the ability of an organism or system to maintain internal stability and balance in response to external changes or fluctuations. Importance of Homeostasis: Homeostasis is vital for the optimal functioning and survival of living organisms. It allows them to regulate various physiological processes, such as body temperature, pH
Holoprosencephaly (HPE) Definition: Holoprosencephaly (HPE) is a congenital brain malformation characterized by incomplete or improper separation of the prosencephalon (the embryonic precursor of the forebrain) into two distinct cerebral hemispheres. This results in various degrees of fusion or underdevelopment of the cerebral hemispheres, leading to a wide spectrum of neurological and developmental abnormalities. Subtypes of
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