Sunday, 13 December 2015

ANATOMY and PHYSIOLOGY

Anatomy deals with the 'structure' of living things and Physiology deals with the 'functions' of living things. To understand the way the body works one must study all the systems of the body. In order to do this the body has been divided into ten systems:
1) Skin (integumentary) System, 2) Skeletal System, 3) Muscular System, 4)Nervous System, 5) Cardiovascular System, 6) Respiratory System, 7) Digestive System, 8) Endocrine System, 9) Urinary System, 10) Lymphatic System and Immune System.
Before we begin to understand how our body parts work, we must first understand that our body is made up of cells and we have nearly 100 trillion cells in our body,

1) Skin (integumentary) System
This is the largest organ of the body and is about 2 square metres in size and 3 to 6 kilos in weight. It is made up of two layers, the epidermis and the dermis. The epidermis is the outermost layer which has only the melanocytes (the cells that make the colour of the skin)

2) Skeletal System

The skeleton is the frame that holds our body up and gives us the upright shape. We have 350 bones as a child and 206 as an adult. This happens because many bones fuse together as we grow. The bone is made up of hard minerals like calcium and phosphate and 99 per cent of calcium in our body is stored in bones. Apart from supporting our body and keeping it upright, the skeletal system also protects our vital organs. For example, the skull protects the brain; the chest bones (ribs) protect the heart and lungs; the hip bones (pelvis) protect the pelvic organs rectum, urinary bladder and the uterus (in females).
The skeletal system allows for various movements that man is capable of. It is also a store house for minerals especially calcium, magnesium and phosphate. In addition to that, the skeletal system produces blood cells in the bone marrow that are present in the flat bones (skull, chest and pelvic bones) in adults and long bones (humerus, femur) in children. 
Bones are joined together to form joints e.g. shoulder joints, elbow joints and hip joints. These joints are held by strong stretchy bands called ligaments. The ends of joints have a smooth white, shiny surface called cartilage, which acts as shock a Joints are lubricated by a fluid to allow smooth movement. Joints help us to bend, swivel, stretch, pivot and point and perform more than one kind of motion.

3) Muscular System 
4)Nervous System 
5) Cardiovascular System 
6) Respiratory System 
7) Digestive System 
8) Endocrine System 
9) Urinary System
10) Lymphatic System and Immune System

Please let me know how many topic/systems do you want me share per day? Today I share 2, pls advise ? 

3 comments:

  1. Maybe share on skincare routines?

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  2. Yes will share the skincare routine

    ReplyDelete
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