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Kidneys and adrenal glands. Illustration of the human kidneys with adrenal glands and ureters. The kidneys form urine by filtering out waste products from the blood. The urine travels down the ureter to the bladder (unseen). On the kidney's top surface is the adrenal gland (yellow). This endocrine gland secretes a variety of hormones. These include adrenaline (epinephrine), the body's stress hormone. Adrenaline increases heart rate, breathing and metabolism to prepare the body for flight or fight. The adrenals also produce corticosteroid hormones which affect carbohydrate metabolism and the sex glands.
Kidney and adrenal gland. Illustration of the human kidney with the adrenal gland and ureter. The kidney is one of a pair of organs that form urine by filtering out waste products from the blood. The urine travels down the ureter to the bladder (unseen). On the kidney's top surface is the adrenal gland (yellow). This endocrine gland secretes a variety of hormones. These include adrenaline (epinephrine), the body's stress hormone. Adrenaline increases heart rate, breathing and metabolism to prepare the body for flight or fight. The adrenals also produce corticosteroid hormones which affect carbohydrate metabolism and the sex glands.
Kidneys and adrenal glands. Illustration of the human kidneys with adrenal glands and ureters. The kidneys form urine by filtering out waste products from the blood. The urine travels down the ureter to the bladder. On the kidney's top surface is the adrenal gland. This endocrine gland secretes a variety of hormones. These include adrenaline (epinephrine), the body's stress hormone. Adrenaline increases heart rate, breathing and metabolism to prepare the body for flight or fight. The adrenals also produce corticosteroid hormones which affect carbohydrate metabolism and the sex glands.
Kidneys and adrenal glands. Illustration of the human kidneys with adrenal glands and ureters. The kidneys form urine by filtering out waste products from the blood. The urine travels down the ureter to the bladder. On the kidney's top surface is the adrenal gland. This endocrine gland secretes a variety of hormones. These include adrenaline (epinephrine), the body's stress hormone. Adrenaline increases heart rate, breathing and metabolism to prepare the body for flight or fight. The adrenals also produce corticosteroid hormones which affect carbohydrate metabolism and the sex glands.
Kidneys and adrenal glands. Illustration of the human kidneys with adrenal glands and ureters. The kidneys form urine by filtering out waste products from the blood. The urine travels down the ureter to the bladder. On the kidney's top surface is the adrenal gland. This endocrine gland secretes a variety of hormones. These include adrenaline (epinephrine), the body's stress hormone. Adrenaline increases heart rate, breathing and metabolism to prepare the body for flight or fight. The adrenals also produce corticosteroid hormones which affect carbohydrate metabolism and the sex glands.
Kidneys and adrenal glands. Illustration of the human kidneys with adrenal glands and ureters. The kidneys form urine by filtering out waste products from the blood. The urine travels down the ureter to the bladder. On the kidney's top surface is the adrenal gland. This endocrine gland secretes a variety of hormones. These include adrenaline (epinephrine), the body's stress hormone. Adrenaline increases heart rate, breathing and metabolism to prepare the body for flight or fight. The adrenals also produce corticosteroid hormones which affect carbohydrate metabolism and the sex glands.
Kidneys and adrenal glands. Illustration of the human kidneys with adrenal glands and ureters. The kidneys form urine by filtering out waste products from the blood. The urine travels down the ureter to the bladder. On the kidney's top surface is the adrenal gland. This endocrine gland secretes a variety of hormones. These include adrenaline (epinephrine), the body's stress hormone. Adrenaline increases heart rate, breathing and metabolism to prepare the body for flight or fight. The adrenals also produce corticosteroid hormones which affect carbohydrate metabolism and the sex glands.
Kidneys and adrenal glands. Illustration of the human kidneys with adrenal glands and ureters. The kidneys form urine by filtering out waste products from the blood. The urine travels down the ureter to the bladder. On the kidney's top surface is the adrenal gland. This endocrine gland secretes a variety of hormones. These include adrenaline (epinephrine), the body's stress hormone. Adrenaline increases heart rate, breathing and metabolism to prepare the body for flight or fight. The adrenals also produce corticosteroid hormones which affect carbohydrate metabolism and the sex glands.
Kidneys and adrenal glands. Illustration of the human kidneys with adrenal glands and ureters. The kidneys form urine by filtering out waste products from the blood. The urine travels down the ureter to the bladder. On the kidney's top surface is the adrenal gland. This endocrine gland secretes a variety of hormones. These include adrenaline (epinephrine), the body's stress hormone. Adrenaline increases heart rate, breathing and metabolism to prepare the body for flight or fight. The adrenals also produce corticosteroid hormones which affect carbohydrate metabolism and the sex glands.
Kidneys and adrenal glands. Illustration of the human kidneys with adrenal glands and ureters. The kidneys form urine by filtering out waste products from the blood. The urine travels down the ureter to the bladder. On the kidney's top surface is the adrenal gland. This endocrine gland secretes a variety of hormones. These include adrenaline (epinephrine), the body's stress hormone. Adrenaline increases heart rate, breathing and metabolism to prepare the body for flight or fight. The adrenals also produce corticosteroid hormones which affect carbohydrate metabolism and the sex glands.
Lyme disease tick. Computer illustration of a female Ixodes ricinus tick, a blood-sucking parasite of humans and the principal vector of Lyme disease in Europe. This tick uses specialised mouthparts to pierce the host's skin and hold fast for several days while it swells with blood, increasing in weight by up to 200 times. The female feeds only three times during her life and can survive for years between meals, spending most of the time hidden in vegetation. Mating takes place just before her final meal, after which she drops to the ground and lays thousands of eggs. I. ricinus transmits the bacterium Borrelia burgdorferi to humans, which causes Lyme disease.
Lyme disease tick. Computer illustration of female Ixodes ricinus tick, a blood-sucking parasite of humans and the principal vector of Lyme disease in Europe. This tick uses specialised mouthparts to pierce the host's skin and hold fast for several days while it swells with blood, increasing in weight by up to 200 times. The female feeds only three times during her life and can survive for years between meals, spending most of the time hidden in vegetation. Mating takes place just before her final meal, after which she drops to the ground and lays thousands of eggs. I. ricinus transmits the bacterium Borrelia burgdorferi to humans, which causes Lyme disease.
Lyme disease tick. Computer illustration of a female Ixodes ricinus tick, a blood-sucking parasite of humans and the principal vector of Lyme disease in Europe. This tick uses specialised mouthparts to pierce the host's skin and hold fast for several days while it swells with blood, increasing in weight by up to 200 times. The female feeds only three times during her life and can survive for years between meals, spending most of the time hidden in vegetation. Mating takes place just before her final meal, after which she drops to the ground and lays thousands of eggs. I. ricinus transmits the bacterium Borrelia burgdorferi to humans, which causes Lyme disease.
Lyme disease tick. Computer illustration of a female Ixodes ricinus tick, a blood-sucking parasite of humans and the principal vector of Lyme disease in Europe. This tick uses specialised mouthparts to pierce the host's skin and hold fast for several days while it swells with blood, increasing in weight by up to 200 times. The female feeds only three times during her life and can survive for years between meals, spending most of the time hidden in vegetation. Mating takes place just before her final meal, after which she drops to the ground and lays thousands of eggs. I. ricinus transmits the bacterium Borrelia burgdorferi to humans, which causes Lyme disease.
Lyme disease tick. Computer illustration of a female Ixodes ricinus tick, a blood-sucking parasite of humans and the principal vector of Lyme disease in Europe. This tick uses specialised mouthparts to pierce the host's skin and hold fast for several days while it swells with blood, increasing in weight by up to 200 times. The female feeds only three times during her life and can survive for years between meals, spending most of the time hidden in vegetation. Mating takes place just before her final meal, after which she drops to the ground and lays thousands of eggs. I. ricinus transmits the bacterium Borrelia burgdorferi to humans, which causes Lyme disease.
Influenza virus H3N2 strain. 3D illustration showing surface glycoprotein spikes hemagglutinin (orange) and neuraminidase (green) on an influenza (flu) virus particle. Haemagglutinin plays a role in attachment of the virus to human respiratory cells. Neuraminidase plays a role in releasing newly formed virus particles from an infected cell. H3N2 viruses are able to infect birds and mammals as well as humans. They often cause more severe infections in the young and elderly than other flu strains and can lead to increases in hospitalisations and deaths.
Influenza virus H3N2 strain. 3D illustration showing surface glycoprotein spikes hemagglutinin (orange) and neuraminidase (green) on an influenza (flu) virus particle. Haemagglutinin plays a role in attachment of the virus to human respiratory cells. Neuraminidase plays a role in releasing newly formed virus particles from an infected cell. H3N2 viruses are able to infect birds and mammals as well as humans. They often cause more severe infections in the young and elderly than other flu strains and can lead to increases in hospitalisations and deaths.
Influenza virus H3N2 strain. 3D illustration showing surface glycoprotein spikes hemagglutinin (orange) and neuraminidase (green) on an influenza (flu) virus particle. Haemagglutinin plays a role in attachment of the virus to human respiratory cells. Neuraminidase plays a role in releasing newly formed virus particles from an infected cell. H3N2 viruses are able to infect birds and mammals as well as humans. They often cause more severe infections in the young and elderly than other flu strains and can lead to increases in hospitalisations and deaths.
Influenza virus H3N2 strain. 3D illustration showing surface glycoprotein spikes hemagglutinin (orange) and neuraminidase (green) on an influenza (flu) virus particle. Haemagglutinin plays a role in attachment of the virus to human respiratory cells. Neuraminidase plays a role in releasing newly formed virus particles from an infected cell. H3N2 viruses are able to infect birds and mammals as well as humans. They often cause more severe infections in the young and elderly than other flu strains and can lead to increases in hospitalisations and deaths.