Download List the eleven organ systems we will study in this unit

HOM Lesson 2-Unit3
Objective:
Aim:
Assessment:
Do Now:
Mini-Lesson:
Guided Practice:
Closing/Wrap Up:
Homeostasis and Immunity
 Feedback from the Levels of Organization
 Introduction to Body Systems
 Revisit the definition of homeostasis
How do organisms maintain homeostasis?
Notetaking, classwork, homework, verbal assessment
List the eleven organ systems we will study in this unit.
-Use notes from yesterday.
Feedback from the Levels of Organization
 Homeostasis is the ability for the body to maintain its internal
environment within normal limits (review)
 Homeostasis is maintained through an internal feedback system
controlled by the nervous and endocrine system
 These feedback loops can be negative or positive- see example
 Homeostasis is maintained at all levels
 Messages are sent mainly by hormones and neurotransmitters
(review)
Vocabulary:
Materials/Supplies: handouts
YOUR TASK: IN ONE SENTENCE WRITE THE FUNCTION OF
EACH ORGAN SYSTEM IN YOUR CHART.
Make sure each student has a correct function by putting the chart on the
board/overhead.
HW 1: Homeostasis
HOM Lesson 2-Unit3
Body System
Function/Role in Maintaining Homeostasis
Digestive
Ingest and digest food, absorb water and nutrients
into blood, excrete waste
Respiratory
Bring air into the body, gas exchange, remove waste.
Reproductive
Male- produce, maintain and transfer sperm to
female reproductive system
Female- produce and maintain eggs, receive sperm,
maintain developing fetus
Transport oxygen, nutrients, carbon dioxide, and
other wastes to and from body cells, distribute heat
throughout the body
Remove toxins and wastes from the body
Circulatory
Excretory
Skeletal
Support body, protect vital organs, produce blood
cells, store minerals, movement
Muscular
Voluntary body movement, move substances
through the body, maintain heartbeat
Nervous
Transmit and interpret messages throughout the
body, respond to internal and external stimuli,
maintain homeostasis, control voluntary and
involuntary body functions
Secrete hormones, maintain homeostasis
Endocrine
Immune
Protect body against foreign microorganisms, fight
infection and disease
Integumentary Protection, temperature regulation, vitamin
production
HOM Lesson 2-Unit3
Name ____________________________________
Date _____
Warm Up: Body Systems
1. List only the eleven body systems that we will be studying this unit in the
first column:
Body System
Function/Role in Maintaining Homeostasis
HOM Lesson 2-Unit3
Notes:
The pancreas is an endocrine gland which
produces hormones which regulate blood
glucose (sugar) levels.
1. What happens when there is an
increase in blood sugar?
2. What happens when a person has low
blood sugar?
This is one example of how the body
maintains homeostasis, an internal
environment within normal limits.
YOUR TASK: IN ONE SENTENCE WRITE THE FUNCTION OF EACH ORGAN
SYSTEM IN YOUR CHART.
HOM Lesson 2-Unit3
Name __________________________
Date _____
HW 1: Homeostasis Multiple Choice
1.During a race, the body temperature of a runner increases. The runner
responds by perspiring, which lowers body temperature. This process is an
example of:
a.
b.
c.
d.
maintenance of homeostasis
an antigen-antibody reaction
an acquired characteristic
environmental factors affecting phenotype
2.Homeostasis in living things is regulated by the action of
a.
b.
c.
d.
the nervous system, only
the endocrine system, only
both the nervous and endocrine systems
neither the nervous nor the endocrine system
3. In desert environments, organisms that cannot maintain a constant internal
body temperature, such as snakes and lizards, rarely go out during the hot,
sunny daylight hours. They stay in the shade, under rocks, or in burrows
during the day. Explain how this behavior helps maintain homeostasis in these
organisms.
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
4. When a human’s body temperature rises they often begin to sweat. This is
an example of a ____________________.
a.
b.
c.
d.
Feedback mechanism
an antigen-antibody reaction
respiration
environmental factors affecting phenotype
5. What does sweat do for the human body?
______________________________________________________________________________
____________________________________________________________________________