Page 32 - SCERT Kerala State Syllabus 8th Standard Basic Science Textbooks English Medium Part 1_Neat

Indicators
$ What are the functions performed by each tissue in the
illustration?

$ What are the important tissues that the stomach and the intestine
are made up of?

$ What is the function of the stomach?
$ What is the function of the intestine?
$ Is the function performed by an organ the same as the function
of its constituent tissues?
$ What is the advantage of organs with the same function working
together as a system?
Tissues combine to form organs. What would happen when organs
combine? Discuss.
$
Physiological functions are smoothly carried out by the combined
action of many organs. Digestion is the process of the combined
action of organs of the digestive system such as stomach, liver and
intestine. Whether the functioning of the digestive system alone is
sufficient to transport the nutrients produced by digestion, to
different parts of the body? Discuss.

$
Complete the following table by finding out the systems to which
the organs listed in the table belong to:
For more details and
pictures of tissues
Organs Organ system http://en.wikipedia.org/
Heart, blood vessels wiki/Tissue_(biology)
Nose, trachea, lungs
Kidney, ureter, urinary bladder
Brain, nerves

Table 2.2
No organ system can function independently. A given physiological
activity can be completed only by the combined action of different
organ systems.

You have understood that cells combine to form tissues, tissues
combine to form organs and organs combine to form organ systems.
Discuss what happens when organ systems combine together.

Basic Science VIII 31