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THE HUMAN SYSTEM

Health, love and life makeover

THE HUMAN SYSTEM

April 29, 2017 Counseling Psychology General Health Healing 0

The Human System

The Human System:

The human system is the aggregation of numerous organs in the body and they include:

  • Circulatory System –

This group consists of the heart and blood vessels which include the arteries, veins and the capillaries. The heart initiates the circulation and transportation of blood to parts of the body where they are needed as at when due effectively supplying nutrients, oxygen, waste products like carbon dioxide and urea, enzymes, hormones and other molecules from one part of the body to where needed.

The blood is made up of fluid that carries components parts like cells, hormones and others during circulation moving from cells to tissues to blood organs and back including the bone marrow, liver and spleen.

  • Digestive System –

This comprises the following component parts:

  • The Mouth
  • Esophagus
  • Salivary Glands
  • Stomach
  • Gastrointestinal Tract
  • Small Intestine
  • Large Intestine
  • Rectum
  • Liver
  • Gall bladder
  • Pancreas

This follows the human body from the mouth down to the anus. This system is directly responsible for converting food consumed into small soluble, non-toxic, nutritional parts for onward absorption and distribution to all body parts.

  • Endocrine system

This system is primarily endocrine glands like:

  • The Pituitary
  • The Thyroid
  • The Parathyroids
  • The Adrenals
  • The Pancreas
  • The Gonads

All tissues and organs produce specific endocrine hormones. They serve as units of signal from one body system to the other producing an array of body conditions resulting in variety of functional changes.

  • Immune system

The immune system is made up of:

  • White blood cells
  • The Thymus
  • The Lymphatic system comprising of the lymph nodes and channels

They provide a system of identification for the body whereby it can distinguish its own component cells and tissues from those outside of its orbit but surrounding it. They also do same for substances and objects and neutralize and/or destroy aliens or intruding cells and tissues using specialized proteins called like

  • Toll-like receptors,
  • Cytokines
  • Antibodies

 

  • Integumentary system

This group basically consists of the covering of the entire body system like

  • The skin including nails both for the hands and feet
  • The hair both on the head and facial hair for example the armpit,
  • The reproductive part, on the hands and on the legs.

There are the sebaceous glands and the sweat glands, the skin providing structure, compartment and protection for other organs as it serves as a major sensory interface between the body system and the world outside.

  • Lymphatic system

This system basically extracts, transports and metabolizes lymph which is the fluid found in the space in between cells. It is very similar to the circulatory system in structure as it is built and function as it carries body fluid from one body part to the other.

  • Musculoskeletal system

The Musculoskeletal system as the name implies comprises of the entire human body and skeleton including ligaments, tendons, cartilage and bones all attached to muscles.

The system is divided into:
  • The Muscular System
  • The Skeletal Systems

Which gives the body the basic structure it has and the ability to move from one place to another. The larger bones in the body contain bone marrow which is basically the site for the production of blood cells.

All bones are storage storage sites and compartments for phosphate and calcium which are mineral elements

  • Nervous system

This system is composed of 2 major categories:

  • The Central Nervous System comprising the brain and the spinal cord
  • The Peripheral Nervous System consisting of the nerves and ganglia outside the brain and the spinal cord.

The brain is a giant organ that functions for thought, memory, emotion and sensory acts. It serves as a major aspect of communication and control of various systems and their functions in the body.

The sensory acts include smell, taste, vision and hearing.

The organs responsible are:
  • Eyes
  • Nose
  • Ears
  • Tongue

They gather information about what’s going on around the body’s environment.

  • Reproductive system

This system consists of the following:

  • The internal sex organs
  • The external sex organs
  • The gonads

They are responsible for the production of gametes in each sex, which is a mechanism for the combination of the sex organs and in the female reproductive system a nurturing environment for the first nine months of the development of the infant embryo after fertilization.

The reproductive system allows humans to reproduce.

The male reproductive system includes:
  1. The penis
  2. The testes, which produce sperm.
The female reproductive system consists of:
  1. The vagina
  2. The uterus
  3. The ovaries, which produce eggs.

During conception, a sperm cell fuses with an egg cell, which creates a fertilized egg that implants and grows in the uterus.

  • Respiratory system

The respiratory system is composed of the following:

  • The Nose
  • The Nasopharynx also called simply pharynx
  • The Trachea
  • The lungs

The system function for bringing oxygen into the body from the air in the surrounding and for removing/excreting carbon dioxide from the body into the surrounding as it is a waste product from the body same for water.

  • Urinary system

This system consists of the following:

  • The kidneys
  • The Ureters
  • The Bladder
  • The Urethra

They function basically to remove toxic waste and materials from the blood to the uriary system and convert them into urine comprising of waste molecules, minerals, excess ions and water out of the body.

 

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