関連する実験動画
Updated: Jul 11, 2026

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Thermal Limits Determination for Zooplankton Using a Heat Block
Published on: November 18, 2022
Dermochelys coriaceaの体温: 寒い水から暖かいカメへ
まとめ
レザーバックカメは,体温が高く,水温より18°C高い体温を保ち,その大きなサイズと筋肉の活動に起因する. 水中の冷却速度は遅く,分あたり約0.001°Cです.
科学分野:
- マリン・バイオロジー マリン・バイオロジー
- 動物生理学 動物生理学
- 温度調節 温度調節 温度調節 温度調節
背景:
- レザーバックカメ (Dermochelys coriacea) は,最大の海カメである.
- 温度調節の理解は,環境への適応性を評価する上で極めて重要です.
研究 の 目的:
- レザーバックカメの温度調節能力を調査するために.
- カメの深い体と周囲の水の間の温度差を定量化するために.
- 水中のヒョウガメの冷却速度を測定するために.
主な方法:
- 寒い水から取り出した後,レザーバックカメの深部体温を測定する.
- カメと水の温度差を計算する.
- 水中の第2のレザーバックカメの冷却速度 (k) を測定する.
主要な成果:
- 革背の亀の深層の体温は,周囲の冷たい水よりも18°C高かった.
- 身体の大きさと筋肉の活動から発生する熱は,熱保持の理由として提案されています.
- 測定された冷却速度 (k) は,体と環境の温度差の1°Cあたり分あたり約0.001°Cであった.
結論:
- レザーバックカメは,周囲の水条件にかかわらず,高い体温を維持する,重要な内熱性を発揮します.
- その大きな大きさは,熱の保存に重要な役割を果たし,より涼しい水域に住めるようにします.
- ゆっくりとした冷却率は,さまざまな熱環境で長期間適応していることを示唆しています.
関連する概念動画
Body Temperature
The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...
Body Temperature
Body temperature reflects the equilibrium between heat production and heat loss within the body. Most heat is generated by metabolically active tissues, particularly the liver, heart, brain, kidneys, and endocrine organs. At rest, skeletal muscles contribute 20–30% of total heat production, but during vigorous exercise, this can increase up to 30–40 times.
The average body temperature is approximately 37°C (98.6°F) and typically ranges from 36.1–37.2°C (97–99°F), remaining relatively stable...
The average body temperature is approximately 37°C (98.6°F) and typically ranges from 36.1–37.2°C (97–99°F), remaining relatively stable...
Thermoregulation
The human body has a sophisticated thermoregulation system that employs negative feedback mechanisms to maintain an optimal core temperature. When the core temperature drops, peripheral and central thermoreceptors send signals to the hypothalamus, activating the heat-promoting center. This center triggers several responses aimed at increasing the core temperature. First, vasoconstriction reduces the flow of warm blood from internal organs to the skin so that the heat is not lost from the skin,...
Assessing Body Temperature - Axilla
Procedural Guide for Assessing Axillary Body Temperature using a Digital Thermometer:
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
Assessing Body Temperature - Rectal
Rectal temperature measurement is considered the most precise method for assessing core body temperature and typically registers higher than oral temperature. For adults, the rectal thermometer should be inserted 1 to 1.5 inches into the rectum to obtain the most accurate reading.
Follow these steps for rectal temperature assessment:
Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection.
Step 2: Position the patient in a side-lying position to better visualize the rectal...
Follow these steps for rectal temperature assessment:
Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection.
Step 2: Position the patient in a side-lying position to better visualize the rectal...
Assessing Body Temperature - Oral
Here are the steps to accurately measure oral temperature using an electronic thermometer:
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...

