3. HUMAN ARE COMPLEX ORGANISMS THAT MADE UP
OF MILLION INDIVIDUAL SYSTEMS.
SOME OF THE MAJOR SYSTEMS ARE THE BLOOD
CIRCULATION, THE SKELETAL SYSTEM, THE
DIGESTIVE SYSTEM, THE NERVOUS SYSTEM AND THE
RESPIRATORY SYSTEM.
THE HUMAN BODY IS A COMPLEX SYSTEM OF CELLS,
MOST OF WHICH ARE GROUPED INTO ORGAN
SYSTEM THAT HAVE SPECIALISED FUNCTIONS. THESE
SYSTEMS CAN BEST BE UNDERSTOOD IN TERMS OF
THE ESSENTIAL FUNCTIONS THEY SERVE; DERIVING
ENERGY FROM FOOD, PROTECTION AGAINST INJURY,
INTERNAL COORDINATION AND REPRODUCTION.
4. Human are unique among earth’s life forms as they.
☺have language and thought
☺have a better developed brain than other life forms.
☺are able to create and learn from experience.
☺are endowed with intelligence which enables them to
think and reason rationally and to differentiate right
from wrong.
Cell in our body have different sizes and shapes and
carry out various functions.
The process in which each type of cell is specialized to
perform a specific functions is know as division of
labor.
5. are able to create and learn from experience.
have language and thought
6. have a better developed brain than other life forms
are endowed with intelligence which enables
them to think and reason rationally and to
differentiate right from wrong.
7. CELL ORGANISATION
CELL THE CELL IS THE SMALLEST UNIT
OF LIFE IN OUR BODIES
TISSUE A GROUP OF SPECIALISED
CELLS, WITH THE SAME
FUNCTION.
ORGAN TWO OR MORE TISSUES
CARRYING OUT THE SAME
FUNCTION.
SYSTEM TWO OR MORE ORGANS
CARRYING OUT THE SAME
FUNCTION.
9. TYPES OF STRUCTURE FUNCTIONS
SPECIALIASED
CELLS.
epithelial #small and fit well together #cover the surface of the
cells #can have hair like structures body line cavities and
called cilia growing out from protect surfaces of organs
them. #used in absorption and
excretion of substances.
nerve #very long and thread like #detect stimuli from the
cell surrounding environment
#transmit electrical signals
to all parts of the body.
sperms #look like a microscope tadpole #fertilizer an egg .Enabling
#contains genetic information information to be transfer
from the father. from one generation to the
next
egg cell #a large spherical cell #after fertilizer by a sperm
(ovum) #contains genetic information enables genetic information
from the mother. to be paused on from one
generation to the next
red blood Biconcave(a dip in the middle of #carry oxygen to all part of
cell cell each side. body.
10. TYPES OF SYSTEM IN HUMAN
BODY
ORGANS :
MOUTH, OESOPHAGUS, LIVER,
STOMACH, PANCREAS, LARGE
INTESTINE, SMALL INTESTINE
RECTUM.
FUNCTION: DIGESTIVE SYSTEM
CLASSES OF FOOD SO THAT THE
NUTRIENTS CAN BE ABSORBED
EASILY BY THE BODY.
ORGANS:
NOSE, TRACHEA, BRONCHUS AND
LUNG.
DIGESTIVE FUNCTION: INHALES OXYGEN RESPIRATORY
SYSTEM. AND EXHALE CARBON DIOXIDE. SYSTEM.
11. ORGANS:
HEART, ARTERY AND VEIN.
FUNCTION: TRNASPORT
OXYGEN AND FOOD TO
ALL PART OF THE BODY
AND TRANSPORT
EXCRETORY
PRODUCTS.
ORGANS:
BRAIN, SPINAL CORD
NERVE.
FUNCTION: COORDINATES
AND CONTROLS MOST
NERVE ACTIVITIES AND
BLOOD
RECEIVE EXTERNAL NERVOUS
CIRCULATORY
STIMULI AND SYSTEM
SYSTEM
COORDINATES RESPONSES
12. ORGANS:
ORGANS:
LUNGS , SKIN, KIDNEY
LUNGS , SKIN, KIDNEY
AND BLADDER.
AND BLADDER.
FUNCTION: REMOVES
FUNCTION: REMOVES
EXCRETORY PRODUCTS FROM
EXCRETORY PRODUCTS FROM
THE BODY
THE BODY
LUNGS: REMOVE CARBON
LUNGS: REMOVE CARBON
DIOXIDE AND WATER VAPOUR
DIOXIDE AND WATER VAPOUR
KIDNEYS: REMOVE UREA ,
KIDNEYS: REMOVE UREA
,MINERAL SALTS AND WATER.
MINERAL SALTS AND WATER.
SKIN: REMOVE UREA, MINERAL
SKIN: REMOVE UREA, MINERAL
SALTS AND WATER.
SALTS AND WATER.
ORGANS: MUSCLE.
ORGANS: MUSCLE.
EXCRETORY FUNCTION: ALLOW
FUNCTION MUSCULAR
SYSTEM BODY MOVEMENT.
SYSTEM.
13. ORGANS:
SKULL,PECTORAL
GIRDLE, RIB BONE,
BACKBONE, PELVIC
GIRDLE, FEMUR
FUNCTION:SUPPORTS
THE BODY, PROTECT
INTERNAL ORGANS
AND ENABLES BODY
MOVEMENT.
FUNCTIONS:RETURN
LYMPH TO THE BLOOD
STREAM AND PROTECT
THE BODY FROM
DISEASE, CAUSE LYMPHATIC
SKELETAL ORGANISMS. SYSTEM
SYSTEM.
14. ORGANS: PITUITARY
GLAND, THYROID
GLAND, PANCREAS, ADRENAL
GLAND, OVARY, TESTIS.
FUNCTION: PRODUCES
HORMONES AND
COORDINATES AND
CONTROLS BODY
RESPONSES TO STIMULI
AND LIFE PROCESSES
SUCH AS REPRODUCTION
AND GROWTH.
ENDOCRINE
SYSTEM.
15. Conclusion
HUMAN ARE COMPLEX ORGANISMS BECAUSE
HUMAN MADE UP BY A MILLION IDIVIDUAL
SYSYTEM. WITH OUT ALL THIS SYSTEM I THINK
HUMAN CAN BE COMPLEX ORGANISMS AND
HAVE THE SAME LEVEL WITH ANIMALS.
LOVE A OUR SELF BECAUSE WITHOUT ALL
SYSTEM IN OUR BODY WE CAN’T MOVE, WALK
AND DO THE OTHER ACTIVITY.