Download Lymphatic_ Muscular_ Skeletal Systems PPT HW

Chapter 12 Lesson 2
STRUCTURE, MOVEMENT AND CONTROL
Essential Questions
• How does the body move?
• How does the body respond to
changes in its environment?
New Vocabulary
 Lymphocytes
 Immunity
 Compact Bone
 Spongy Bone
 Neuron
 Reflex
 Hormone
Parts of Blood (ADD TO LAST NOTES)
 Plasma – the liquid part of blood
 Contains nutrients and allows transport of other blood
cells
 Red Blood Cells – carry oxygen
 Platelets – help the body heal
 White Blood Cells – help the body defend against
toxins and diseases
 Blood Types – A, B, AB, O

Different people have different proteins on the surfaces of
their blood cells which is why there are different types.
Human Blood Types
Lymphatic System
 Parts:
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Tonsils
Spleen
Thymus
Bone Marrow
Lymphocytes
Lymph nodes
 3 Main functions:
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Remove excess fluids around organs
Produce white blood cells to fight infections
Absorb and transport fats
 Maintains fluid homeostasis
Lymphatic System
 Fluid that travels through the lymph vessels flows
into organs called lymph nodes

Protects the body from toxins, wastes, etc.
 Lymphocytes: type of white blood cell that are
made in the thymus, the spleen, and bone marrow.
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Circulatory system transports them throughout the body
Immune cells attack and destroy viruses, bacteria, and other
substances.
 Immunity: protection from infection or toxins
Immunity
 Humans make billions of different types of
antibodies (remember the movie!)

Infectious diseases – caused by pathogens
Are contagious
 Example: bacteria and viruses

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Noninfectious disease – caused by the environment or a
genetic disorder
Lines of Defense
 1st line of defense:
 The skin and mucus which prevent toxins and other
substances from entering the body
 2nd line of defense:
 The immune response in which white blood cells attack and
destroy harmful substances
 3rd line of defense:
 The immune cells which makes antibodies that destroy
harmful substances
The Skeletal System
 Functions:
 Protects internal organs
 Provides support
 Helps the body move
 Stores minerals (Like calcium)
 The skeleton also contains:
 Ligaments – connect bone to bone
 Tendons – connect muscle to bone
 Cartilage
 Bones
Bone Types
 Compact bone – hard
outer layer of the bone
 Spongy bone – interior
region that contains
many tiny holes (like a
sponge)
 Bone marrow – Makes
white blood cells (part of
the lymphatic system)
Muscular System
 3 Types of Muscle Tissues:
 Skeletal
muscle - Works with the skeletal
system and helps you move
 Cardiac muscle – Only found in the heart
Continually contracts and relaxes to move
blood throughout the body
 Smooth muscle – Only found in organs (such
as the stomach and bladder)
Blood vessels also have smooth muscle
surrounding them to control blood flow