The organisation of the human body
This assignment will show the main cell components and how they function and operate around the human body. Therefore I will be explaining the structure of the main tissues of the body and the gross structure of all the main body systems.
Functions of main cell components
3629025678815Cell membrane: The cell membrane surrounds the cytoplasm of a cell and the cell is composed of mix of proteins and lipids
Nucleus: The nucleus controls cell activity (brain of the cell) this is done by regulating the enzymes.
Mitochondria: The mitochondria provides energy for cell
Golgi apparatus: The job of Golgi apparatus is to store and ship certain cellular product.
Cytoplasm: cytoplasm contains molecules such as enzymes which are responsible for breaking down waste and is controlled by enzymes
Endoplasmic reticulum : The smooth (ER) is to make cellular products like hormones and lipids .
Lysosome: lysosome are involved in the digestion system and waste removal they help to digest any excess or worn out organelles, food particles and engulfed virus or bacteria
Tissues are groups cells that carry out a specific function they are also a non-living material called intercellular matrix
These are four types of tissues and these are, Epithelial, Connective, Muscle and Nervous
Epithelial tissues: They perform a variety of functions that include protection .They are composed of several layers of cells, called compound epithelia or just a single layer known as simple epithelia. The west or bottom layer of cells is attached to a basement membrane for support or connection. There are supplies to epithelia but they are supplied as they are surface tissues and exposed to friction, their capacity for growth and repair.
429577517780Simple squamous: This type of epithelium tissue is located in capillary and air sac linings and its shape is flat .Types of Epithelial tissues
Simple cuboidal: this type of epithelium tissue is found on the surface of the ovaries its shape is tall and wide
Simple columnar: Simple columnar tissue is long than they are wide this tissue is found in the cornea , inner ear and nose
Simple ciliated: ciliated epithelial is a thin tissue that has hair like structure on it this is called cilia they move back and forth to help particles out of our body. for example of the epithelial tissue is human skin
Connective tissue: There are different types of connective tissue although this type of tissue does not contain many cells as they are separated from each other.
3632200292100Blood: blood is considered as form of connective tissue. Blood transports materials around the body and protects from any diseases, blood is pumped away from the heart.
Cartilage: This type of tissue is very flexible it is found in many areas of the body which includes the joints between bones , rib cage, ear, the knee and ankle.
Areolar: This type of tissue is a loose tissue that can bind different tissues together it is also soft enough to provide flexibility and cushioning .3581400312420
3581400198120Adipose: This type of tissue is a fatty tissue it protects us from having excessive heat loss or increase in temperature it also provides insulation and protection from organs.
4943475601345Muscle tissue:. Muscle tissue is responsible for all body movements this includes body motions as in walking , This type of tissue functions most of our body systems. That keeps us alive for example respiration, digestion, blood circulation.
Striated: striated produces movement and maintains posture, contract and relax, The function of striated is to allow the body to move by repeated contraction and relaxation.
Non-striated: None striated (also called involuntary, plain or smooth) it protects, controls movement of substance along tubes.
-57150415290Cardiac The cardiac muscle (also called involuntary, has four chambers), can be found in the heart it also shares similarities to skeletal muscle, and cannot be controlled. Cardiac muscles are found in the heart.
Nervous: The central nervous system function is mainly to send interrupt messages throughout the body
4391025161925Neurones: neurones are cells that transmit information they have long extensions that extend from out of the cell and these are called dendrites and axons
Neoroglia: These cells form myelin they protect and support the nervous system neorogila are known as glial cells.
4457700-390525Cardiovascular: The cardiovascular system consists of the heart, blood vessels and blood. This type of system has three main functions this includes transport of nutrients, oxygen, and hormones to cells throughout the body and removal of metabolic waste.
48577508401050Lymphatic: The role of lymphatic is to transport lymph a fluid containing infection-fighting white blood cells throughout the body. This system consists of little vessels all over the body
49434754354195479107554057554781550315404549434756640195Nervous: The role of the nervous system is to receive information it is responsible for coordinating all of the body activities it controls not only the maintenance of normal functions but also the body’s ability to cope with emergency situations . The nervous system is divided into two parts the central nervous system consist of the brain and spinal cord.
Endocrine: The endocrine system is made up of glands that produce secrete hormones. they transfer information from one set of the cells to coordinate the functions of different parts of the body this is linked to the nervous system because both receive information.
Reproductive: The reproductive system contains organs that controls the human reproduction which includes ovaries, testes, pubic hair
438150017062454457700353695Digestive: The role of the digestive system is to break down food when it passes through the digestive tract, The tract consist of the mouth and throat ,oesophagus, stomach, the small and large intestines. The associated digestive organs include three pairs of salivary glands, the liver, pancreas ,and the gallbladder.
Respiratory: The respiratory system has 3 major parts such as the airways, the lungs, and the muscles of respiration. The respiratory system is the act of breathing which includes inhaling and exhaling air in the body. This includes the nose, the mouth and the beginning of the trachea.
Renal: The renal system consist of the kidneys, urinary bladder and urethra. The kidneys filter the blood to remove wastes and produce urine. The urethras , urinary bladder and the urethra together form the urinary tract, which acts as a plumbing system to drain the urine form the kidneys to store it and release it during urination. Besides from filtering and eliminating waste from the body.
Musculo -skeletal: Musculo-skeletal system includes bones of the skeleton and the cartilages ,ligaments ,and other connective tissue that stabilize or connect the bones. To support the weight on the body . Bones work together with muscles to maintain the body’s position and to produce controlled and precise movements.
Immune: The role of the immune system is to protect against disease or other potentially damaging foreign bodies. When functioning properly the immune system identifies a variety of threats including viruses, bacteria and parasites and distinguishes from the bods own healthy tissue.