Circulatory & Respiratory Systems
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Transcript Circulatory & Respiratory Systems
Unit 8: Physiology
Left Side
Pg
Right Side
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Unit Page
48
Table of Contents
49
Neuron/Synapse
50
C.N. – Control Systems
51
Homeostasis
52
Section 35-2
53
Flow Map: Blood Glucose
54
Flow Map: Leptin & Hunger
55
Tree Map: Body
Maintenance Systems
56
C.N. Body Maintenance
Systems
57
Word Bank: Maintenance
Systems
59
Word Bank: Control Systems 58
Body Maintenance Systems
Circulatory
Respiratory
Digestive
Body Maintenance Systems
Body maintenance systems have
complementary activities to provide
cells with oxygen and nutrients and
remove toxic waste and carbon dioxide
Together, they work to maintain
homeostasis.
I. Circulatory System
II. Respiratory System
III. Digestive System
Cellular Respiration: use glucose & O2
C6H12O6 + 6 O2 6 CO2 + 6 H2O + ATP energy
glucose + oxygen Carbon dioxide + water + energy
Happens in the MITOCHONDRIA
3 Steps of Respiration:
MITOCHONDRIA
1. Glycolysis
2. Krebs Cycle
3. Electron Transport Chain (ETC)
I. Circulatory System
FUNCTION: Transportation and
delivery system that…
1) Delivers O2 & nutrients to cells
2) Removes CO2 & wastes from cells
ORGANS: heart, blood vessels, &
blood
Heart: 4 chambered muscle that beats
constantly to pump blood through vessels
Atrium: upper chambers that receive
blood returning from body and lungs
Ventricles: lower chambers that pump
blood to body and lungs
Right side:
deoxygenated blood
Left side:
Oxygenated blood
Blood Vessels
Arteries: carry blood away from heart to
body or lungs
Veins: carry blood to the heart from the
body or lungs
Capillaries: tiny blood vessels where
nutrients and gases are exchanged between
blood and cells
Blood
Transports and exchanges oxygen,
carbon dioxide, nutrients, and waste
II. Respiratory System
FUNCTION: Respiration
Respiration: breathing O2 in and CO2
out
Occurs between the…
1. Environment & lungs (breathing)
2. Cells & the blood in capillaries (cellular
respiration)
ORGANS: nose, pharynx, larynx,
trachea, bronchi, lungs, alveoli
The Path of O2
1) Nose/Mouth - air enters
body
2) Pharynx - passageway for
food & air
3) Larynx - vocal chords
4) Trachea - windpipe (rings
prevent collapse)
5) Bronchi (2) - take air to each lung
6) Alveoli - small air sacs surrounded
by capillaries where O2 is exchanged
for CO2
III. Digestive System
FUNCTIONS:
1. Digestion: the breakdown of food into
simple molecules
2. Absorption: nutrients in the digestive
tract move into the blood
3. Elimination: getting rid of wastes
ORGANS: mouth, esophagus,
stomach, liver, pancreas, small
intestine, large intestine, rectum
The Path of Food
1. Mouth
Teeth and saliva digest food mechanically
and chemically
2. Esophagus
Food tube squeezes food by peristalsis
3. Stomach
Muscle that mixes food with acid and enzymes
4. Small Intestine
Chemical digestion
occurs and nutrients are
absorbed into blood
(circulatory system)
Pancreas: secretes
digestive enzymes into
small intestine and insulin
to control blood glucose
levels
Liver: stores sugars as
glycogen and secretes
bile, stored in gall bladder
5. Large Intestine
Water is reabsorbed
from waste
6. Rectum
Waste collects here to
be passed out of anus
Review
Cellular Respiration:
glucose + oxygen Carbon dioxide + water + ATP energy
Digestive Respiratory Respiratory
&
&
&
Circulatory Circulatory Circulatory
body cells