Transcript Respiratory System

PHASE III
TEST: Wednesday, May 18th
5-17-10
DSQ 65A
 Correct CH & Collect
 Clean out notes
OBJ
 How the respiratory system cleans the air
before it reaches the lungs
 Understand Organs=tissues=cells
 What are the parts of a cell
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Phase III Vocabulary
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Cells- The tinniest part of the body structure. They come in all
shapes & sizes
Fission- The division of a cell into two new cells
Cilia-Hair like structures that beat back and forth like the
sweeping motion of a broom
Tissues- Make up organs
Diaphragm- The powerful breathing muscle located under the
lungs
Chromosomes- ‘Blue prints’ which pass on traits
Mitochondria- Generate energy for the cells use
Cell Membrane- Forms a wall that holds a cell together
Mitosis- The division of the nucleus
Cytoplasm-The substance that surrounds the nucleus and other
parts of the cells
Phase III Vocabulary (cont)
Nucleus- Contains the chromosomes, and direct the cells
activities
Goblet Cells- These cells are responsible for producing
mucus
Cough/Sneeze- What we do when food tries to enter the
Respiratory System
Lungs
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When a baby is born their lungs are pink
Our lungs get dirtier through life
Pollutants & dust & dirt particles
How Our Air is Cleaned
Curve in the throat (pharynx)
 Traps dirt in the nasal passage (nose
hairs)
 Goblet Cells (mucus)
 Cilia (hairs in the
trachea)
 Coughing
& Sneezing
(100 mph)
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5-18-10
DSQ 65B
REVIEW
 Phase III Vocabulary
 How lungs are cleaned
OBJ
 Things needed for life
 Organs, Tissues, & cells
 Mitosis & Fission
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Needed for Life
3 Things needed for cells to stay alive
 Water (H O)
 Oxygen (O )
 Food
2
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Organs & Tissues
Organs are made of?
 Different kinds of tissue: nerve, muscle &
connective
Tissues are made of?
 Each tissue is made up of its own kind of
cells
Cells
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Are tinniest part of the body structure
All tissues are made of cells
Cells are different sizes, kinds, and
shapes
The shape of the cell has to do with its
function
Types of Cells
Cell Parts
5-19-10
DSQ 66A
REVIEW
 Vocabulary
 5 Cleaning Mechanisms
 Organs & Tissues
 Cells
OBJ
 To understand Fission & Mitosis
 To understand Cell Growth
 To recall the steps of the breathing process
 To understand life
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Mitosis & Fission
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Mitosis-is the division of the nucleus
Fission- is the division of a cell into 2 new
cells
Cell Growth & Development
The Steps in the Breathing
Process
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Nose & Mouth---Nasal Passage or Oral Cavity
Throat---Pharynx
Voice Box---Larynx
Trachea---Windpipe (cilia help clean the air)
Bronchi---2 small pipes off the trachea
Bronchial Tubes---tubes throughout the lungs
Alveoli---tiny air sacs that perform the main work of
the lungs
Blood from the lungs is oxygenated---turns red
Cells are brought oxygen---cells get oxygen from the
blood
The Breakdown of Life
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The human body contains
100 trillion cells
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Inside each cell there is a
nucleus
Nucleus
The Breakdown of Life
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Each nucleus contains 46
chromosomes, arranged
in 23 pairs
xy xy
One chromosome of
every pair is from each
parent
Mom & Dad
The Breakdown of Life
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The chromosomes are
filled w/tightly coiled
strands of DNA
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Genes are segments of
DNA that contain
instructions to make
proteins-the building
blocks of life
5-24-10
DSQ 66B-Quiz Questions
REVIEW
 Vocabulary
 5 Ways Air Cleans itself
 Cells (parts)
OBJ
 Smoking and how it effects the respiratory
System
 Trundle Wheel for measurement
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Smoking and the Respiratory
System
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Cigarette smoke paralyzes, stops, slows
down the cilia
Nicotine narrows the blood vessels and
makes the heart pump faster
Carbon monoxide acts like a ‘thief’,
because it steals the place of oxygen