Levels of Structural Organisation of the Human Body

DIPLOMA NURSING

Assessments 3.3
1) Even though the human body is incredibly complex, it does have an underlying less
complicated organisation. Briefly describe the 6 (six) levels of structural organisation of
the human body in order from the smallest structural unit to the largest (in 130-150
words).
The human body organised into different levels and this starts with cell. Therefore, six
structural organisations that makes up the human body are outlined as-:
Chemical- In this atoms get combine and make molecule.
Organelle- organisms and all cells of human contains structure.
Cell- It can be called out as smallest units of all living things.
Tissues- This is inclusive of common smaller cells that functions commonly.
Organ- It is composed of two or more tissue types and performs a specific function for the
body.
Organ system- It is defined as group of organs that corporates to accomplish common object.
2) There are various life processes that tell us that human beings are alive. Describe
the following life processes in your own words (in 30-50 words each).
2.1) Organisation: At all the levels of organisation, there is division of labour. Each
component has their own job to perform in corporation with others.
2.2) Processes of metabolism: It is wider term that is inclusive of the all chemical reaction
that produce in the body.
2.3) Nutrition: This is termed out as substances in food in terms with maintenance, growth,
production, health and disease of organism.
2.4) Biological maturation: It can be defined as a process that characterizes the human
growth and development.
2.5) Inheritance: It can be called out as the genetic information that can be passed from
parent to child.
2.6) Ageing: It reflects all the changes takes place in the course of life such as grows,
develops and attains maturity.
3) The human body strives to adjust to conditions that are optimal for survival.
Answer the following questions on homeostasis.
3.1) Describe the concept of homeostasis in your own words (in 50-70 words).

Homeostasis can be termed out as organism that helps to maintain a stable, constant internal
environment when external environment gets changes. Additionally, human maintains
homeostasis is process that includes controlling temperature, blood pressure and respiration
etc.
3.2) Briefly describe the relationship homeostatic imbalance and disease (in 50-70
words).
This is defined as static state of the body physiological system. Thus, Homeostasis and
disease are inversely related. At time when body is fighting disease and this is usually out of
balance.
3.3) The control of body temperature in humans is a good example of homeostasis in a
biological system. Briefly explain the process of body temperature regulation (in 80-100
words).
Body temperature regulation termed out as process that aids to maintain a precise internal
temperature range that aids to keep the body work effectively. In addition to this, body is
regulated by neural feedback mechanism.
4) Briefly describe the overall structure and functions of the following components of
the human body.
4.1) Cell (in 40-60 words):
Cells are termed out as basic unit of life. It is the smallest known world that performs the all
life functions. Hence, all living organism can be termed out as the single cells and
multicellular organism that composed by varied cells working together.
4.2) Skeletal muscle tissue (in 40-60 words):
It is one of the three major muscles types, the others being cardiac muscle and smooth
muscle. Skeletal can be termed out as the muscle is found attached to bones. It is inclusive of
the long multinucleate fibres.
5) Briefly describe the structure and functions of the cardio-vascular system (in 60-80
words).
Human cardiovascular system is inclusive of the heart, blood vessels and blood. With the
help of Transport of nutrients, oxygen, and hormones to cells throughout the body and
removal of metabolic wastes. It is responsible for transporting nutrients and this also leads to
remove gaseous waste from the body.
7) Briefly describe the structure and functions of the muscular system (in 60-80
words).
Muscular system of the human body is consisting to various types of muscle that plays
crucial role in the function of body. It allows person to move, chew and speak. It controls
heartbeat, breathing and digestion. There are three functions of muscular system such as
muscles are able to contract and relax enables movement of the body, bones are not enough
to keeps in shape. So, this can be stated that muscle can be termed out as essential as this
allows to maintain posture and body position.