Download Human Body Systems

Human Body Systems
Monday, April 30
WARM-UP: Do CST Practice Problems (1-10)
DO NOT WRITE ON THE TEST! Put your
answers on the blue paper.
• Turn in your poster- “Do Your Part to be
Earth Smart”
• HW: Read 35-2 and do the review
• Notebooks due: Friday, May 4th
Human Body Systems
Section 35–1
This section describes human organ
systems and explains how the body
maintains homeostasis.
Warm-Up: What are the 11 organ
systems of the human body?
Integumentary (skin), nervous, muscular,
digestive, skeletal, reproductive,
endocrine, respiratory, circulatory
(cardiovascular), excretory/urinary,
immune/lymphatic
Immune
Tuesday, May 1st
Warm-Up: What is Physiology?
Physiology – the study of the structure
and function of the human body
HW: Read 35-2 and do the review
Notebooks due Friday May 4th
Use Ch. 35-1 to do the following in
your notebook: (paste into
notebook)
• Describe the levels of organization in the body
(cells, tissues, organs, organ systems) and give
an example of each (p. 891)
• Write down and draw each of the 11 organ
systems and their functions. (p. 892-893)
• Explain the difference between the four types of
tissues. (p. 894)
• Define homeostasis. (p. 895)
Levels of Organization
Cells
Tissues
Organs
Levels of Organization of the Body
• Specialized Cells have a particular function.
• Tissues are a group of specialized cells that
perform a single function.
• Organs are a group of tissues that work
together to perform a complex function.
• Organ Systems are a group of organs that
work together to perform closely related
functions.
Nervous
System
Function
• Recognizes and
coordinates the body’s
response to changes in its
internal and external
environments using the
brain and nerves
Integumentary
System Function
• Serves as a barrier
against infection and
injury; helps to
regulate body
temperature;
provides protection
against UV radiation
from sun.
Respiratory
System
Function
• Provides O2
needed for cellular
respiration and
removes CO2 from
body.
Digestive
System
Function
• Converts food into
simpler molecules
that can be
absorbed into
bloodstream and
then used by cells
of body; eliminates
waste.
Excretory System Function
• Eliminates waste products from body using
kidneys, bladder and urine to maintain
homeostasis.
Skeletal
System
Function
• Supports the body;
protects internal
organs; allows
movement; stores
minerals; provides site
for blood cell
formation.
Muscular System
Function
• Works with skeletal
system to produce
voluntary movement
(skeletal muscle); helps
circulate blood (cardiac
muscle) and moves food
through digestive system
(smooth muscle).
Circulatory
System Function
• Brings O2, nutrients and
hormones to cells
through the blood;
fights infection;
removes cell waste
through the blood;
helps regulate body
temperature.
Endocrine System Function
• Uses hormones to control growth, development
and metabolism; maintains homeostasis.
Reproductive
System Function
• Produces
reproductive cells;
in females,
nurtures and
protects
developing
embryo.
Immune/Lymphatic
System Function
• Protects the body from
disease; collects fluid lost
from blood vessels and
returns the fluid to the
circulatory system.
Explain the difference between
the four types of tissues.
Epithelial tissue includes glands and tissues that
cover interior and exterior body surfaces.
Explain the difference between
the four types of tissues.
Connective tissue provides support for the body,
insulates and connects its parts.

Examples: Fat, cartilage, bones, tendons, and blood.
Explain the difference between
the four types of tissues.
Nervous tissue transmits nerve impulses
throughout the body.
Explain the difference between
the four types of tissues.
Muscle tissue enables movement of body and its
structures by muscle contraction. 3 types: skeletal,
cardiac and smooth
Homeostasis: the
process by which
organisms keep
their internal
conditions relatively
stable; threatened
by changes in the
environment.
Ex: sweating,
panting, shivering,
osmosis, dilation of
pupils
Endothermy (being warm-blooded)
• Endothermy enables the body to
maintain homeostasis at all times,
regardless of the temperature outside
the body.
Nervous system
Coordinates the body’s response to changes in its
internal and external environments
Skeletal system
Stores mineral reserves and provides a site for
blood cell formation
Integumentary
system
Serves as a barrier against infection and injury
Endocrine system
Eliminates wastes and maintains homeostasis
Lymphatic/Immune
systems
Helps protect body from disease.
Muscular system
Helps produce voluntary movement, circulate
blood, and move food
Reproductive
system
Produces reproductive cells
Respiratory system
Provides oxygen and removes carbon dioxide
Excretory system
Eliminates wastes and maintains homeostasis
Circulatory system
Brings materials to cells, fights infection, and helps
to regulate body temperature
Digestive system
Converts food so it can be used by cells