Fostering Friendships - Enhancing Social Bonds in the Classroom
The transportation system in humans
1. TheTRANSPORTATION SYSTEMin
HUMANS
The human heart is located in the toraks cavity, behind the breast bone,
and lung between the left and right.
Heart shape cone-shaped cocoonand was leaning slightly towards the
left side of our body.
The heart has a mass of about 300g and built from muscles of thick and
strong heart.
The whole heart is protected with a durable membrane. The heart
consists of a muscular kardium can shrink without nerve stimulation.
The heart has 4 public i.e. left and right atrium at the top and ventrikal
left and right at the bottom of the heart.
The function of the heart is to pump blood to the whole body. Senior
space heart pumping blood to the lungs. Heart pumping space left to
other bodyparts. Heart pumping when shrinking and mengendur
ototnya. Both the atrium and ventricle shrink and mengendur
simultaneously. Valve separating the atrium from the ventricle below
it. Valves ensure blood only flows in one direction, from the atrium to the
ventricle and then from the ventricle into the blood vessel.
Blood vesselis blood pipeline system to the rest of the body. There
are 3 types of blood vessel, namely:-* * Artery * Blood capillaries have
Varicose
Humans have a double circulatory system.
Route 1: FROM the HEART to the LUNGS and BACK to the HEART line
2: FROM the HEART to OTHER PARTS of the BODY and BACK to the
heart.
* Transport of materials useful. (oxygen and nutrients) * get rid of waste.
(carbon dioxide and urea) * Transporting chemicals such as hormones.
* The heart is important organ. * Unhealthy Heart causes a variety of
serious diseases such as coronary heart disease,heart attack, high
blood pressure and stroke. * Steps to a healthy heart:-1) Always work
out. 2) commensurate weight. 3 a balanced intake of essential nutrients).
2. 4) reducing the oils and fats in the daily diet. 5) Avoid smoking and
liquor. 6) control the mental stress and feeling.
