The part of the human body that cannot be transplanted is (d) Brain. Unlike other organs like the kidney, heart, and lung, which can be surgically removed from one individual and transplanted into another to replace damaged or diseased tissue, the brain cannot be transplanted. The brain is the centrRead more
The part of the human body that cannot be transplanted is (d) Brain. Unlike other organs like the kidney, heart, and lung, which can be surgically removed from one individual and transplanted into another to replace damaged or diseased tissue, the brain cannot be transplanted.
The brain is the central organ of the nervous system and controls most bodily functions, including consciousness, cognition, and movement. Its intricate structure and highly specialized connections make it impossible to transplant without irreversibly disrupting essential neural pathways and functions.
While researchers continue to explore advances in neurology and neurotechnology, including brain-computer interfaces and neural prosthetics, transplanting an entire brain from one person to another remains beyond the realm of current medical science and ethical considerations. Therefore, unlike other organs that can be transplanted to save lives, the brain is not currently a candidate for transplantation.
The part of the human body that exhibits regeneration is (d) Liver. The liver is known for its remarkable regenerative capacity, which allows it to repair and replace damaged tissue. Hepatocytes, the main cells of the liver, have the ability to proliferate and regenerate in response to injury, toxinRead more
The part of the human body that exhibits regeneration is (d) Liver. The liver is known for its remarkable regenerative capacity, which allows it to repair and replace damaged tissue. Hepatocytes, the main cells of the liver, have the ability to proliferate and regenerate in response to injury, toxins, or surgical removal.
After experiencing injury or partial removal, the liver undergoes a process called compensatory hypertrophy, where the remaining hepatocytes increase in size and replicate to restore liver mass and function. This regenerative ability is crucial for maintaining liver function and overall health, as the liver performs essential metabolic, detoxification, and synthetic functions in the body.
While other organs such as the spleen (a), kidney (b), and brain (c) have some degree of regenerative capacity, it is not as extensive as that of the liver. The liver’s exceptional regenerative capabilities make it unique among the organs of the human body.
The hardest substance in the human body is (c) Dentin. Dentin is a calcified tissue that forms the bulk of a tooth, providing structural support and protection. It is composed mainly of hydroxyapatite crystals, which are similar to those found in bone, but dentin is denser and contains less organicRead more
The hardest substance in the human body is (c) Dentin. Dentin is a calcified tissue that forms the bulk of a tooth, providing structural support and protection. It is composed mainly of hydroxyapatite crystals, which are similar to those found in bone, but dentin is denser and contains less organic material.
While bone (a) is also a hard tissue, dentin is generally considered harder due to its higher mineral content. Dentin makes up the bulk of a tooth’s structure beneath the enamel and cementum layers.
Plaque (b) is a soft, sticky film of bacteria that forms on teeth and can lead to dental decay and gum disease. It is not a hard substance.
Nails (d) are composed of a protein called keratin and are hard, but they are not as hard as dentin or bone. They provide protection to the fingertips but are not as mineralized as dentin.
The hardest part of the body of a vertebrate animal is (c) Enamel. Enamel is the outermost layer of teeth and is primarily composed of a mineralized crystalline calcium phosphate known as hydroxyapatite. This unique composition gives enamel its exceptional hardness and resistance to wear and tear. ERead more
The hardest part of the body of a vertebrate animal is (c) Enamel. Enamel is the outermost layer of teeth and is primarily composed of a mineralized crystalline calcium phosphate known as hydroxyapatite. This unique composition gives enamel its exceptional hardness and resistance to wear and tear.
Enamel serves a vital role in protecting the underlying dentin and pulp of the tooth from mechanical stress, bacteria, and acids present in the oral environment. It also provides the necessary strength for biting and chewing food.
While bone (b) is a hard tissue that provides structural support and protection to various organs and tissues in the body, enamel is generally considered to be harder due to its highly mineralized composition.
Keratin (a) is a protein found in structures such as hair, nails, and the outer layer of the skin. While keratin provides toughness and strength to these tissues, it is not as hard as enamel.
The skull (d) is composed of various bones, including the cranium and facial bones, which protect the brain and sensory organs. While the skull is strong and durable, its individual bones are not as hard as enamel.
The upper surface of the skin is called (a) Epidermis. The epidermis is the outermost layer of the skin, serving as a protective barrier against environmental factors such as pathogens, UV radiation, and dehydration. It is primarily composed of keratinocytes, which produce the protein keratin, alongRead more
The upper surface of the skin is called (a) Epidermis. The epidermis is the outermost layer of the skin, serving as a protective barrier against environmental factors such as pathogens, UV radiation, and dehydration. It is primarily composed of keratinocytes, which produce the protein keratin, along with melanocytes, Langerhans cells, and Merkel cells. The epidermis continually sheds dead skin cells from its surface and undergoes constant renewal through cell division in the basal layer. This layer also contains melanocytes responsible for producing melanin, the pigment that gives skin its color and provides protection against UV radiation.
Which part of the human body cannot be transplanted?
The part of the human body that cannot be transplanted is (d) Brain. Unlike other organs like the kidney, heart, and lung, which can be surgically removed from one individual and transplanted into another to replace damaged or diseased tissue, the brain cannot be transplanted. The brain is the centrRead more
The part of the human body that cannot be transplanted is (d) Brain. Unlike other organs like the kidney, heart, and lung, which can be surgically removed from one individual and transplanted into another to replace damaged or diseased tissue, the brain cannot be transplanted.
See lessThe brain is the central organ of the nervous system and controls most bodily functions, including consciousness, cognition, and movement. Its intricate structure and highly specialized connections make it impossible to transplant without irreversibly disrupting essential neural pathways and functions.
While researchers continue to explore advances in neurology and neurotechnology, including brain-computer interfaces and neural prosthetics, transplanting an entire brain from one person to another remains beyond the realm of current medical science and ethical considerations. Therefore, unlike other organs that can be transplanted to save lives, the brain is not currently a candidate for transplantation.
Which part of the human body exhibits regeneration?
The part of the human body that exhibits regeneration is (d) Liver. The liver is known for its remarkable regenerative capacity, which allows it to repair and replace damaged tissue. Hepatocytes, the main cells of the liver, have the ability to proliferate and regenerate in response to injury, toxinRead more
The part of the human body that exhibits regeneration is (d) Liver. The liver is known for its remarkable regenerative capacity, which allows it to repair and replace damaged tissue. Hepatocytes, the main cells of the liver, have the ability to proliferate and regenerate in response to injury, toxins, or surgical removal.
After experiencing injury or partial removal, the liver undergoes a process called compensatory hypertrophy, where the remaining hepatocytes increase in size and replicate to restore liver mass and function. This regenerative ability is crucial for maintaining liver function and overall health, as the liver performs essential metabolic, detoxification, and synthetic functions in the body.
While other organs such as the spleen (a), kidney (b), and brain (c) have some degree of regenerative capacity, it is not as extensive as that of the liver. The liver’s exceptional regenerative capabilities make it unique among the organs of the human body.
See lessWhich of the following substances is the hardest in the human body?
The hardest substance in the human body is (c) Dentin. Dentin is a calcified tissue that forms the bulk of a tooth, providing structural support and protection. It is composed mainly of hydroxyapatite crystals, which are similar to those found in bone, but dentin is denser and contains less organicRead more
The hardest substance in the human body is (c) Dentin. Dentin is a calcified tissue that forms the bulk of a tooth, providing structural support and protection. It is composed mainly of hydroxyapatite crystals, which are similar to those found in bone, but dentin is denser and contains less organic material.
See lessWhile bone (a) is also a hard tissue, dentin is generally considered harder due to its higher mineral content. Dentin makes up the bulk of a tooth’s structure beneath the enamel and cementum layers.
Plaque (b) is a soft, sticky film of bacteria that forms on teeth and can lead to dental decay and gum disease. It is not a hard substance.
Nails (d) are composed of a protein called keratin and are hard, but they are not as hard as dentin or bone. They provide protection to the fingertips but are not as mineralized as dentin.
The hardest part of the body of a vertebrate animal is
The hardest part of the body of a vertebrate animal is (c) Enamel. Enamel is the outermost layer of teeth and is primarily composed of a mineralized crystalline calcium phosphate known as hydroxyapatite. This unique composition gives enamel its exceptional hardness and resistance to wear and tear. ERead more
The hardest part of the body of a vertebrate animal is (c) Enamel. Enamel is the outermost layer of teeth and is primarily composed of a mineralized crystalline calcium phosphate known as hydroxyapatite. This unique composition gives enamel its exceptional hardness and resistance to wear and tear.
See lessEnamel serves a vital role in protecting the underlying dentin and pulp of the tooth from mechanical stress, bacteria, and acids present in the oral environment. It also provides the necessary strength for biting and chewing food.
While bone (b) is a hard tissue that provides structural support and protection to various organs and tissues in the body, enamel is generally considered to be harder due to its highly mineralized composition.
Keratin (a) is a protein found in structures such as hair, nails, and the outer layer of the skin. While keratin provides toughness and strength to these tissues, it is not as hard as enamel.
The skull (d) is composed of various bones, including the cranium and facial bones, which protect the brain and sensory organs. While the skull is strong and durable, its individual bones are not as hard as enamel.
The upper surface of the skin is called
The upper surface of the skin is called (a) Epidermis. The epidermis is the outermost layer of the skin, serving as a protective barrier against environmental factors such as pathogens, UV radiation, and dehydration. It is primarily composed of keratinocytes, which produce the protein keratin, alongRead more
The upper surface of the skin is called (a) Epidermis. The epidermis is the outermost layer of the skin, serving as a protective barrier against environmental factors such as pathogens, UV radiation, and dehydration. It is primarily composed of keratinocytes, which produce the protein keratin, along with melanocytes, Langerhans cells, and Merkel cells. The epidermis continually sheds dead skin cells from its surface and undergoes constant renewal through cell division in the basal layer. This layer also contains melanocytes responsible for producing melanin, the pigment that gives skin its color and provides protection against UV radiation.
See less