The document summarizes the key body systems involved in nutrition:
1) The digestive system transforms food into nutrients through the actions of the mouth, esophagus, stomach, liver, pancreas, intestines and other organs.
2) The respiratory system is responsible for breathing through the nose, pharynx, larynx, trachea, lungs and diaphragm.
3) The circulatory system transports nutrients and oxygen to cells through the heart, blood and blood vessels like arteries, veins and capillaries.
Life of every organism depends on certain basic processes. Excretion is one among them. Different organisms follow different modes of excretion. In complex organisms including humans, there is a specialized system for excretion called human excretory system.
Life of every organism depends on certain basic processes. Excretion is one among them. Different organisms follow different modes of excretion. In complex organisms including humans, there is a specialized system for excretion called human excretory system.
Powerpoint presentation about nutrient support. This has the process on how nutrients were taken, absorbed, utilized and how waste materials were eliminated in the body.
For each mammalian organ system, list the organs and their function. .pdfarhamgarmentsdelhi
For each mammalian organ system, list the organs and their function. Respiratory Circulatory:
Digestive: Immune:
Solution
1....Main Parts of the Respiratory System and their Functions:
1. The nostrils: They bring air into the nose, where air is warmed and humidified. The tiny hairs
referred to as cilia filters out dirt and other debris in the air and protects the nasal passage and
different regions of the respiration tract.
2.Trachea: The trachea is also referred to as windpipe. The trachea filters the air we inhale.
3.Bronchi: The bronchi are the two air tubes that branch off of from the trachea and deliver
atmospheric air at once into the lungs.
4.Lungs: The major organ of the respiratory machine is lungs, oxygen is taken into and carbon
dioxide is expelled out. The red blood cells un the blood picks up the oxygen inside the lungs
and deliver and distribute the oxygen to all body cells.
5.Alveolus: gaseous exchange takes place.
6.Diaphragm: Breathing starts off evolved . When we breathe in the diaphragm contracts and
flatten out and pull downward. Due to this motion the space within the lungs will increase and
pulls air into the lungs. When we breathe out, the diaphragm expands and decreases the amount
of space for the lungs and forces air out.
2...Digestive organs and their functions:
Mouth
Mixes food with salivary secretion; taste, chewing
Salivary glands
Lubricate food; produce buffers and enzymes that begin digestion
Pharynx
Passageway shared with respiratory system, leads to esophagus
Esophagus
Delivers food to stomach
Stomach
Secretes acids and digestive enzymes that break down proteins
Small intestine
Secretes enzymes and other factors for nutrient digestion; absorbs nutrients
Liver
Secretesbile (required for lipid digestion); synthesizes blood proteins; stores lipid and
carbohydrate reserves
Gallbladder
Stores biles for release into small intestine
Pancreas
Secretes digestive enzymes and buffers into small intestine; produces hormones
Large intestine
Removes water from nondigested material; stores wastes
3....Excretory system and their functions:
Kidney
organs in the excretory system where waste is filtered out of the blood
ureter
tubes that connect the nephron to the bladder
urethra
tube through which urine exits the body
bladder
where urine is stored until you \"go to the bathroom\"
nephron
small capsule in the kidneys where excess water, salts, and urea are removed from the
bloodstream and other materials are put back into the blood
4....Reproductive organs:
Male reproductive organs:
testis
produces sperm
epididymis
stores sperm
vas deferens
transports sperm to urethra
urethra
receives seminal secretions from testes and accessory glands; also drains excretory products from
urinary bladder
seminal vesicles
secrete alkaline fluids that aid in neutralizing acidity and contain nutrients to promote sperm
motility and viability and hormones to stimulate uterine contractions
bulbourethral glands
secretes alkaline fluid to neutralize aci.
circulatory system, their parts, three kinds of circulation, heart, how does it works, artery, vein, capillary, what is in blood, RBC, function summary
5. NUTRITION
The function of nutrition is essential to life. Nutrients
give our cells all the energy they need.
The digestive system, the respiratory system, the
circulatory system and the excretory system carry
out the function of nutrition.
6. THE DIGESTIVE SYSTEM
The digestive system transforms food into nutrients.
It has two parts, the digestive tract and the
digestive glands.
7. The mouth has salivary glands that
pruduce saliva, teeth that chew food and
tongue that mixes chewed food with
saliva to form a ball of food.
21. The bronchi are two branches of the trachea . They
take air to the lungs.
22. The lungs are spongy organs made up of small sacs
called alveoli.
23. When we breathe, the oxygen in the air goes to the
blood through the alveoli, and the carbon dioxide from
the blood is released outside the body.
24. The diaphragm is the muscle
that creates the movements
involved in breathing
25. THE EXCRETORY SYSTEM
The excretory system filters waste substances from
the blood. It removes them from the body through
excretion.
The excretory system is made up of:
Sweat glands in the skin. They produce sweat.
The urinary system. This is made up of the kidneys
and the urinary tract.
26.
27. THEURINARYSYSTEM
The kidneys are on both sides of
spinal column.They remove waste
substances fromthe blood and make
urine.
The ureters take urinefrom the
kidneys to the bladder.
The bladder stores the urine.
The urethra connects the bladder to
the outside.
28. THE CIRCULATORY SYSTEM
The circulatory system transports nutrients and
oxygen to our cells. It is made up of the heart ,
blood and blood vessels.
29. THE HEART IA A MUSCULAR ORGAN THAT
PUMPS BLOOD AROUND THE BODY.
30. The blood collets oxygen from
the alveoli and nutrients from
the small intestine and
transports them to the all cells.
It also collects waste
substances and takes them to
the sweat glands and the
urynary system.
31. The blood
vessels are
the tubes
through
which blood
circulates.
There are
three types
of blood
vessels:
arteries, vei
ns and
capillaries.
The arteries carry blood from the
heart to the rest of the body.
The veins carry blood from all over
the body back to heart.
The capillaries are very thin vessels
that reach all the cells of the body.
32.
33. THEBLOOD
Blood is a
red liquid
tissue
made up of
cells that
float in a
liquid
called
plasma.
There are
three types
of blood
cells, red
blood cells,
white blood
cells and
platelets.
Red blood cells carry oxygen.
White blood cells remove bacteria and
viruses from the blood.
Platelets are small fragments of cells
that form blood clots when a blood
vessel breaks.
34. THEHEART
The heart uses
rhythmic systole
and diastole
movements to
pumpthe blood
aronnd the body.
Blood enters the
atria through the
veins and
passes to the
ventricles.
Between the
atria and
ventricles, there
are valves that
prevent blood
from flowing
back to the atria.
Blood comes out
of the ventricles,
through the
arteries and
travels all over
the body.
35. HUMAN CIRCULATION.
HUMAN CIRCULATION IS CLOSED AND DOUBLE.
Human circulation is
closed.In
mammals, the heart
septum separates the
two halves of the heart.
This prevents blood
with oxygen from
mixing with the blood
carrying carbon
dioxide.
Human circulation is
double. The blood
follows two routes.
A) Pulmonary
circulation.
B) Systemic circulation.