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THE TEN SYSTEMS OF THE HUMAN BODY
The human body functions by using its 10 major systems; all of which are integral parts to human existence. ... It determines the shape and symmetry of the body, provides an area for muscles to attach to, and protects the internal organs. The human race has an endoskeleton which means the bones are found inside the body. ... There are two types of skeleton in a human body: the axial skeleton and the appendicular skeleton. ...
The second major system of the human body is the muscular system. ... Smooth muscle is located in the organs of the digestive, respiratory, and circulatory systems. ...
The third major system of the human body is the integumentary system. ... The skin is the outer covering of the human body which protects the body from harmful microorganisms and acts as a cushion to help prevent the body from serious injury. ... It sweats, which in turn cools the body. ... Finally the skin acts as a waterproof covering around the whole body. Skin is elastic, responsive, and flexible due to the types of body tissues it contains. ... It is found all over the body except on the bottoms of the feet, the palms of the hands, and the lips. ...
The fourth major system of the human body is the digestive system. ...
The fifth major system of the human body is the circulatory system. The circulatory system transports waste, nutrients, gases, and chemicals throughout the body. ... The heart is a muscular organ that pumps blood throughout a person’s body. ... The superior vena cava brings blood from the upper part of the body. The inferior vena cava brings blood from the lower part of the body to the heart. ... On the left side, blood is pumped from the left ventricle to the aorta then through the rest of the body. ...
The sixth major system of the human body is the respiratory system. ... Respiration is the process by which the body takes in oxygen, uses it to produce energy, and then gets rid of some waste products of cellular respiration. ... Breathing begins when the diaphragm drops causing the air pressure out side the body to be greater than that inside so air flows in. ...
The seventh major body system is the excretory system. ... ”(Biology Today) The body rids itself of metabolic wastes and nitrogen compounds through the process of excretion. ... Then the urine is forced out of the body through the urethra.
The eighth major system of the human body is the nervous system. ... The central nervous system receives stimuli which tells the body how it should react. The brain controls the whole body. ... Also in the cerebrum is the thalamus, a relay center for impulses and the hypothalamus, which controls the body’s temperature. ...
The ninth system of the human body is the endocrine system. The endocrine system controls hormones which are very powerful chemicals that control the body’s growth and maturation. ... The inner part, the adrenal medulla, releases epinephrine and norepinephrine that help the body deal with stress.
Approximate Word count = 2455
Approximate Pages = 9.8
(250 words per page double spaced)
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