The outermost layer of the skin, providing protection against environmental factors and regulating water loss.
Epidermis
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The middle layer of the skin, containing blood vessels, nerves, hair follicles, and sweat glands.
Dermis
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Structures within the dermis that produce hair, which serves various functions such as protection and sensory perception.
Hair Follicles
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Glands located in the dermis that produce sweat, helping regulate body temperature and excrete waste products.
Sweat Glands
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Glands located in the dermis that secrete sebum, an oily substance that lubricates and waterproofs the skin and hair.
Sebaceous Glands
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The long, tubular structure of nervous tissue extending from the brainstem through the vertebral canal, serving as a pathway for nerve signals between the brain and the rest of the body.
Spinal Cord
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The lower part of the brain connecting the brain to the spinal cord, responsible for controlling basic life functions such as breathing and heart rate.
Brainstem
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The largest part of the brain, responsible for higher cognitive functions such as thinking, memory, and voluntary movements.
Cerebrum
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The main organs of the respiratory system responsible for gas exchange between the air and the blood.
Lungs
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The tube connecting the larynx to the bronchi, allowing air to pass between the throat and the lungs.
Trachea
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The muscular tube connecting the throat to the stomach, allowing food and liquids to pass from the mouth to the stomach.
Esophagus
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The organ of the digestive system responsible for breaking down food into smaller particles and mixing it with gastric juices.
Stomach
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The largest internal organ, responsible for detoxification, metabolism, and the production of bile.
Liver
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A glandular organ located behind the stomach, responsible for producing digestive enzymes and hormones such as insulin.
Pancreas
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The part of the digestive tract where most nutrient absorption occurs, consisting of the duodenum, jejunum, and ileum.
Small Intestine
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The final part of the digestive tract, responsible for absorbing water and electrolytes and forming and eliminating feces.
