Human Sensory System: Stimuli, Receptors, and Common Disorders
The Human Sensory System
A stimulus is a change in our environment or within us that we perceive and which provokes a response from our body. Coordination involves electrochemical processes and nerve impulses, producing high-speed electrochemical responses. Endocrine coordination involves glands discharging substances (hormones) into the blood when receiving nerve impulses or chemical information from the internal environment. Responses executed by muscles and glands are coordinated by the endocrine
Read MoreEssential Respiratory Therapy Techniques for Patient Care
* Respiratory Physiotherapy Concept: A set of procedures aimed at helping patients remove respiratory secretions, as an impasse could lead to respiratory failure.
In chronic respiratory processes, immobilization reduces the drainage of secretions. Postoperatively, patients have a decreased cough reflex due to analgesics, are generally less mobile, and avoid coughing due to pain. Neurological conditions can lead to a loss of muscle strength and diminish the cough reflex.
Some of the procedures include
Understanding Leading Causes of Death and Treatments
Leading Causes of Death
Cardiovascular Diseases
Chronic Diseases
Cancer
Contagious Diseases
Injuries
Treatment of Obesity
Good food, more fruits and healthy fats, good hydration, and as a last resort, liposuction.
Cholesterol
Bad cholesterol accumulates on artery walls.
Good cholesterol does not accumulate on the artery walls, but is carried to the liver.
Cardiovascular Disease (CVD)
The heart (myocardium) can suffer if blood flow is disrupted. A total blockage causes a myocardial infarction, and angina pectoris
Read MoreDental Anatomy: A Comprehensive Guide to Tooth Structure and Function
Tooth Histology
From a histological point of view, the tooth is made up of 4 tissues: 3 hard tissues (enamel, dentin, and cementum) and one soft tissue (dental pulp), which is rich in vascularization and innervation, giving it great sensitivity.
The two external hard tissues are enamel, located on the crown (top) of the tooth, and cementum, located on the root (bottom). Dentin is located inside, delimiting the dental pulp. The visible portion of the crown is involved in chewing and is a hard tissue
Read MoreUnderstanding Diabetes: Causes, Treatments, and Future
Type 1 Diabetes: The Pancreas’ Role
The pancreas is a vital organ with dual functions: it acts as an exocrine gland, producing pancreatic juice, and as an endocrine gland, producing hormones that regulate blood glucose concentration. Insulin is a crucial hormone.
If the beta cells fail to produce insulin or produce an insufficient amount, the blood may contain an excess of glucose that enters the tissues. This condition is easily detected with a blood test.
Non-Infectious Diseases and Genetics
Genetic
Read MoreOrigin of Life: Theories, Oparin’s Hypothesis, and Cellular Evolution
Theories on the Origin of Life
What are the first theories explaining the origin of life on Earth?
Creationism is the basis of religion. In the West, the story of Genesis was long accepted literally.
Spontaneous generation, which Aristotle believed allowed some living things to be generated not only by their parents, was a prevailing thought around the third century. Francesco Redi delivered the first serious blow to proponents of this dogma. He experimentally proved that the white larvae of flies
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