Transcript Chapter 35-1 - Human Body Systems

Team Sports
• How many people play a team sport?
• How do team sports work?
• What do you have to do in order to be
successful as a team?
How is Your Body a Team?
• All of the parts of your body
must work together to keep
you alive
• If one part does not function
properly, then your body
does not work as well
• Let’s take a look at the
players…
Human Body Systems
Chapter 35.1
The Players
• The levels of organization in a multicellular
organism from smallest to largest are:
– cell→
tissue →
organ →
organ system
Now let’s take a closer look at
the players…
1.Cell
2.Tissue
3.Organ
4.Organ system
Cell
• Basic unit of structure and function in an
organism
• Specialized cells
– are uniquely suited to perform a particular function
Tissue
• A group of cells that perform a single function
• Four basic types of tissues:
– Muscle: allows body to move
– Epithelial: glands and tissues that cover interior
and exterior body surfaces
– Connective: provides support for the body
– Nervous: transmits nerve impulses
What is the purpose of each of
these items?
Plastic Wrap
Electrical Wire
Packaging Tape
What type of tissue is
represented by each item?
Plastic Wrap
epithelial
Electrical Wire
nervous
Packaging Tape
connective
Organ / Organ Systems
• Organ
-group of different types of tissues that work
together to perform a single function
• Organ systems
-group of organs that perform closely related
functions
Questions
• Can you name some organs found in the human
body?
• What are some of the functions of these organs?
• Can you name the 11 organ systems found in
the human body?
• What are the main functions of each organ
system?
The Organ Systems
• 11 different organ systems are
organized in the body
1. Nervous
2. Integumentary
3. Skeletal
4. Muscular
5. Circulatory
6. Respiratory
7. Digestive
8. Excretory
9. Endocrine
10. Reproductive
11. Immune
Figure 35-2 Human Organ Systems Part I
Section 35-1
Nervous System
Integumentary System
Skeletal System
Muscular System
Circulatory System
Figure 35-2 Human Organ Systems Part 2
Section 35-1
Respiratory System
Endocrine System
Digestive System
Reproductive System
Excretory System
Lymphatic/Immune Systems
Examples of Feedback Inhibition
Examples of
Feedback Inhibition
Thermostat senses
temperature change and
switches off heating
system
Room temperature increases
Room temperature decreases
Thermostat senses
temperature change and
switches on heating
system