2. HUMAN BODY SYSTEMS
MOVEMENT SYSTEM
DIGESTIVE CIRCULATORY
SYSTEM SYSTEM
RESPIRATORY SKELETAL MUSCULAR
SYSTEM SYSTEM SYSTEM
Note:
In this chapter, we only discuss digestive, respiratory and circulatory systems
4. DIGESTIVE SYSTEM
Oesophagus = Esophagus
the tube from your mouth to your
stomach
Stomach
an organ in the body where food
is digested
Intestine
the tube that digests and absorbs
your food
Rectum
is the final straight portion of the
large intestine
5. DIGE IVE E
ST NZYM S
E
Mouth
• Amylase
Breaks down carbohydrates/
amylum into
glucose
6. Stomac • HCl ( Hydrochloride Acid )
h destroy any bacteria or virus
that remains in the food
• Renin
primarily associated with
coagulation of milk
• Pepsin
breaks down the protein in the
food into smaller particles,
such as peptide fragments and
amino acids
7. Pancrea
s
• Lipase degrades triglycerides into fatty
acids and glycerol.
• Trypsinogen, breaks down proteins at the
basic amino acids
• Amylase breaks down carbohydrates
(starches) into sugars which are more
easily absorbed by the body
8. Circulatory / Transport
system
Circulatory system consist of:
• Heart
• Blood vessels : Arteries , Veins, Capillaries
Arteries : carry the blood away from the heart
Veins : carry the blood back to the heart
Capillaries :
enable the exchange of water, oxygen,
carbon dioxide, and many other nutrient
and waste chemical substances
between blood and surrounding tissues.
11. Respiratory /breathing system
• Mouth & nose for breath in & out
the air
• trachea for sending air from nose to
the lungs
• alveoli for exchange Oxygen and
Carbon dioxide
• Diaphragm is for expanding and relaxing
the lungs ( when diaphragm contracts
the lungs expand and the air enter your
lungs when it relaxes then the lungs
relax too and the air exit your lungs )
12. For further information you can visit
my other site
http://youtu.be/HESOEB-oros
http://youtu.be/vMuH2lmv2DY
http://www.youtube.com/watch?v=52rlcyk3b94
