Human

Hiccups, medically known as singultus, are sudden, involuntary contractions of the diaphragm muscle, followed by the abrupt closure of the vocal cords, which produces the characteristic “hic” sound. These spasms can occur sporadically and are usually harmless, lasting only a few minutes. While they are common and often temporary, hiccups…
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Height is a fundamental physical characteristic that refers to the vertical measurement from the base of an individual’s feet to the top of their head. It is a key aspect of human anatomy and varies significantly among individuals due to genetic, environmental, and nutritional factors. Genetic influences play a major…
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Hearing disability, also known as hearing impairment or hearing loss, refers to a spectrum of conditions ranging from mild to profound that affect an individual’s ability to perceive sounds. This disability can be present at birth (congenital) or acquired later in life due to various factors. Hearing disabilities can impact…
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Hearing is one of our primary senses that allows us to perceive sound, communicate, and engage with the world around us. The process of hearing begins when sound waves enter the outer ear and travel through the ear canal to the eardrum (tympanic membrane). As the sound waves strike the…
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Hearing and equilibrium are two important sensory functions of the human ear, both facilitated by intricate structures within the inner ear known as the cochlea and the vestibular system, respectively. These systems work together to detect sound waves and maintain balance and spatial orientation. The process of hearing begins with…
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The heart is a vital organ responsible for pumping oxygen-rich blood throughout the body, sustaining life and supporting bodily functions. It is situated in the chest cavity, slightly to the left of the midline, between the lungs and above the diaphragm. The human heart is roughly the size of a…
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The heart muscle, also known as cardiac muscle or myocardium, is a specialized type of muscle tissue that forms the walls of the heart. Unlike skeletal muscle, which is under voluntary control, cardiac muscle is involuntary and contracts rhythmically to pump blood throughout the body. The unique properties of cardiac…
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Heart rate, also known as pulse rate, refers to the number of times the heart beats per minute (bpm). It is a vital physiological parameter that provides valuable information about cardiovascular function and overall health. The heart rate is regulated by the autonomic nervous system, specifically the sympathetic and parasympathetic…
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The heart is a vital organ in the human body responsible for pumping blood throughout the circulatory system, delivering oxygen and nutrients to tissues and organs while removing waste products. It is located slightly to the left of the center of the chest and is protected by the rib cage….
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The head is the uppermost part of the human body, comprising the skull, face, and associated structures. It houses vital organs, including the brain, sensory organs such as the eyes, ears, nose, and mouth, as well as blood vessels, nerves, and muscles that support various functions. One of the most…
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