Body and health
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1.HUMAN BODY
The human body is the entire structure of a human being and comprises a head, neck, trunk
(which includes the thorax andabdomen), arms and hands, legs and feet. Every part of the
body is composed of various types of cell. At maturity, the estimated average number of cells
in the body is given as 37.2 trillion. This number is stated to be of partial data and to be used
as a starting point for further calculations. The number given is arrived at by totalling the cell
numbers of all the organs of the body and cell types. The composition of the human body is
made up of a number of certain elementsincluding carbon, calcium and phosphorus. The study
of the human body involves anatomy and physiology. The human body can show anatomical
non-pathological anomalies known as variations which need to be able to be recognised.
Physiology focuses on the systems and their organs of the human body and their functions.
Skeletal structure frames the overall shape of the body and does not alter much over a
lifetime. General body shape (and female body shape) is influenced by the distribution of
muscle and fat tissue and is also affected by various hormones. The average height of an adult
male human is about 1.7–1.8 m and the adult female is about 1.6–1.7 m. Height is largely
determined by genes and diet. Body type and composition are influenced by factors such as
1.1BODY PARTS
The Face:
- eye, nose, mouth, ear, cheek, chin, nostril, eyebrow, eyelid, eyelash, lips.
Mouth - you use your mouth to talk, to eat and to breathe.
Nose - You can smell things with your nose. You can also breathe through your nose.
Nostrils - these are the two holes in your nose.

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