Essay On Blood Vessels

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Blood is a liquid connective tissue made up of red blood cells, white blood cells, platelets, and liquid plasma. Within blood are nutrients, gases and waste substances which are taken around the body via blood vessels.
Blood vessels allow blood from the heart to flow quickly and efficiently around the body and back to the heart. There are three main types of blood vessels: veins, capillaries and arteries. There functions differ therefore they are structured differently.
Arteries carry oxygenated blood from the heart to the body’s tissues. They experience high levels of blood pressure due to the forceful push of fresh oxygenated blood from the heart. Therefore arteries have very thick, muscular and elastic walls to accommodate this fast flow of blood. Arterioles are slimmer arteries that branch off from arteries and carry blood to …show more content…

They are thin, less elastic and less muscular than the walls of arteries because of the lack on blood pressure. They rely on the assistances of muscle contractions to push blood back to the heart. Some veins contain valves this is to prevent back flow. Venules small vessels that pick up blood from capillaries and deposit into large veins to be transported back to the heart.

Musculoskeletal system
The skeletal system includes all of the bones and joints in the body. Each bone is made up of cells, proteins, fibres, and minerals. It provides support and protection for the soft tissues that make up the rest of the body. The skeletal system stores calcium, iron and other essential properties to aid in growth and repair of the body and also provides attachment points to allow the movement of muscle.

There are 206 bones in the human body and divide into the axial skeleton and the appendicular skeleton. The axial Skelton consist of the Skull, Hyoid, Auditory ossicles, Ribs, Sternum, Vertebral column. The appendicular skeleton consists of Upper limbs, Lower limbs, Pelvic girdle, and Pectoral

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