Category: Health

Food and nutrition

The food is the action of living organisms ingest any food, solid or liquid, to meet their biological needs. The nutrition is the collection and use of those components or nutrients in food, and which are vital for growth and / or the life of the organism. The difference between food and nutrition is that the first action refers

Major and minor circulation

The major or systemic circulation is the circuit or path that the blood makes from the heart to the body and back to the heart, while the minor or pulmonary circulation is the circuit that carries the blood from the heart to the lungs and then to the heart . In the greater circulation, the blood travels through the arteries

HDL cholesterol and LDL cholesterol

HDL and LDL cholesterol refer to the lipoproteins that carry cholesterol in the blood. HDL is high density lipoprotein (HDL stands for high density lipoprotein ), while LDL is low – density lipoprotein (LDL stands for low density lipoprotein ). This classification of lipoproteins is due to the technique used for their separation: ultracentrifugation. In this technique, the blood plasma is centrifuged at high speed

Oculist, ophthalmologist and optometrist

The difference between an oculist and an ophthalmologist has to do with the use given to both words in certain Spanish-speaking regions. However, it is the same profession. Oculist and ophthalmologist refer to a doctor who, in addition to his general studies, has a specialization in eye health, so he can diagnose and treat pathologies related to vision.

Difference between serum and plasma

The serum is the liquid part of blood after letting remove clot, while the plasma is the liquid portion of blood, which is obtained when the process is prevented from clotting. Clinical analysis laboratories can use serum and / or plasma to measure different blood compounds as a means to aid in the diagnosis of an individual’s health status. Serum

Breathing, inspiration and expiration

In humans, and other living things, respiration is the process by which oxygen is absorbed from the environment and gases, particularly carbon dioxide , are removed . The main characteristic of respiration is this gas exchange . Respiration can occur as external respiration (gas exchange between the atmosphere and the body) or as internal respiration (gas exchange within the body). The inspiration , is one of the phases

Overweight and obesity

The overweight is overweight caused by an accumulation of body fat that can harm health. A person is considered overweight if their body mass index (BMI) is equal to or greater than 25 . The obesity is also overweight caused by an accumulation of body fat that can harm health, but only a person considered obese when their BMI is equal to or greater

Vegan and vegetarian

A vegetarian is a person who primarily consumes plants and their products, such as fruits, roots and seeds, while a vegan is a vegetarian who also does not use animal products of any kind, this includes honey, skins and tissues, like wool and silk. Recently, there has been an increased interest in adhering to vegetarian diets and the vegan

Systole and diastole

Systole and diastole are two stages of the cardiac cycle. Systole is the contraction phase of the heart, where blood is pumped into the vessels, and diastole is the relaxation phase, which allows blood to enter the heart. In a normal adult, the average systolic pressure is 120 millimeters of mercury (mmHg), while the diastolic is

Types of joints

Joint types are the different ways that the bones in the body are attached to each other. Joints are the joints between bones and are part of the bone system. The most general classification of joints can be established by their function and their structure. Types of joints Characteristics Examples According to its structure Fibrous Immobile