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A2 noun خنثی 2 دقیقه مطالعه

pulsação

/puɫˈsɐ.sɐ̃w̃/
تمرین کن نکات و راهنمایی‌ها

Overview

A pulsação, em português, refere-se ao batimento rítmico que pode ser sentido nas artérias do corpo. Este fenômeno é uma manifestação direta da atividade cardíaca, ou seja, da forma como o coração bombeia o sangue. O coração, um órgão muscular vital, contrai-se e relaxa de forma contínua e coordenada. Cada contração ventricular (sístole) expulsa uma quantidade de sangue para a aorta e, subsequentemente, para as grandes artérias. Essa ejeção de sangue gera uma onda de pressão que se propaga ao longo das paredes arteriais, causando uma distensão e relaxamento que é percebida como a pulsação.

Este batimento não é apenas um indicador da presença de vida, mas também fornece informações cruciais sobre a saúde cardiovascular. A frequência da pulsação, medida em batimentos por minuto, pode indicar se o coração está a trabalhar num ritmo normal, acelerado (taquicardia) ou lento (bradicardia). A regularidade ou irregularidade dos batimentos pode sinalizar arritmias cardíacas. Além disso, a força ou amplitude da pulsação pode sugerir a pressão arterial e o volume de sangue bombeado.

Os locais mais comuns para se sentir a pulsação incluem o punho (artéria radial), o pescoço (artéria carótida), a virilha (artéria femoral) e a parte de trás do joelho (artéria poplítea). A palpação da pulsação é uma técnica médica básica e fundamental para avaliar o estado hemodinâmico de um indivíduo, auxiliando no diagnóstico de diversas condições médicas, desde choques e hemorragias até doenças cardíacas crónicas. É um reflexo direto e palpável da incessante e vital atividade do coração em manter o fluxo sanguíneo necessário para a oxigenação e nutrição de todos os tecidos do corpo.

مثال‌ها

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ترکیب‌های رایج

pulsação forte
pulsação fraca
pulsação regular
pulsação irregular

اغلب اشتباه گرفته می‌شود با

pulsação vs pulso

'Pulsação' refers to the rhythmic throbbing itself, often associated with the beat of the heart. 'Pulso' can refer to the wrist, or more generally, the pulse as a vital sign that can be felt (e.g., checking someone's pulse). 'Pulsação' is the action, while 'pulso' can be the location or the sensation.

الگوهای دستوری

a pulsação forte (the strong pulsation) sentir a pulsação (to feel the pulsation) pulsação cardíaca (heart pulsation)

نحوه استفاده

'Pulsação' is a feminine noun in Portuguese. It is commonly used in medical and health-related contexts, such as 'medir a pulsação' (to take one's pulse) or 'a pulsação está acelerada' (the pulse is accelerated). However, its usage extends metaphorically to describe rhythms, vibrations, or the inherent energy of something. For example, 'a pulsação da música' (the pulse of the music) refers to its beat or rhythm. When referring to a literal pulse, it's often preceded by an article or possessive pronoun, e.g., 'minha pulsação' (my pulse). It's important to differentiate it from 'coração' (heart), which is the organ itself, while 'pulsação' refers to the rhythmic beat.

اشتباهات رایج

A common mistake might be confusing 'pulsação' (pulse, throbbing) with 'impulso' (impulse, urge) or 'batida' (beat, as in heartbeat, though 'batida do coração' specifically refers to a heartbeat, while 'pulsação' is the general rhythmic throbbing of blood). Ensure to use 'pulsação' when referring to the rhythmic expansion and contraction of arteries.

ریشه کلمه

From Latin 'pulsatione-'.

بافت فرهنگی

In Portuguese-speaking cultures, 'pulsação' carries a similar physiological meaning to English, referring to the rhythmic beat of the heart felt through the arteries. However, beyond the literal medical context, it can also subtly evoke a sense of life, vitality, or even emotional intensity. For instance, one might speak of the 'pulsação da cidade' (the pulse of the city) to describe its vibrant energy, or a 'pulsação forte' (strong pulse) in a more metaphorical sense to convey a powerful feeling or presence. It's a word that connects directly to the core of being, making it resonate in various descriptive contexts beyond just biology. In literature or poetry, 'pulsação' can be used to emphasize the aliveness of a moment or a character's inner turmoil.

راهنمای حفظ

Visualize a 'pulse-ação' (pulse-action) – the heart's action creating a pulse. Or, think of 'pulsar' as a star that rhythmically emits radiation, similar to a pulse.

سوالات متداول

4 سوال

'Pulsação' in Portuguese refers to the rhythmic throbbing of the arteries as blood is propelled through them by the heart. It's the sensation one feels when touching an artery, like in the wrist or neck, where each beat corresponds to the heart pumping blood throughout the body. This vital sign is a direct indicator of heart rate and circulatory function, reflecting the efficiency with which blood is distributed. Understanding 'pulsação' is fundamental in both medical contexts for diagnosing conditions and in everyday life for monitoring physical exertion or stress levels. It's a natural and essential bodily function.

'Pulsação' is typically measured by gently pressing two fingers (usually the index and middle fingers) over an artery close to the skin's surface, such as the radial artery in the wrist or the carotid artery in the neck. The number of beats felt within a specific time frame, usually 15 or 30 seconds, is then multiplied to determine the beats per minute. This simple, non-invasive method provides an immediate assessment of a person's heart rate, offering insights into their cardiovascular health. Digital pulse oximeters can also measure pulse rate and oxygen saturation more precisely.

Several factors can influence a person's 'pulsação,' or pulse rate. Physical activity is a major contributor, as the heart pumps faster to deliver more oxygenated blood to working muscles. Emotional states like stress, anxiety, or excitement can also elevate the pulse. Other influences include body temperature, with fever increasing heart rate; certain medications; caffeine and nicotine intake; and underlying medical conditions such as thyroid disorders or anemia. Age also plays a role, with normal resting pulse rates generally decreasing from infancy through adulthood. Lifestyle choices and overall health significantly impact this vital sign.

Monitoring 'pulsação' is crucial for health because it serves as a direct indicator of cardiovascular well-being. A resting pulse rate that is consistently too high or too low can signal potential health issues, such as heart rhythm disturbances, dehydration, or other medical conditions requiring attention. For athletes, tracking pulse rate during exercise helps optimize training intensity and prevent overexertion. In emergency situations, a person's pulse provides immediate information about their circulatory status. Regular monitoring allows individuals and healthcare professionals to detect changes early, facilitating timely intervention and promoting better overall health management.

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