1. The Body Systems
Health II
Chapter 15
Pg. 406

2. The Systems Cardiovascular This system moves blood through the body
Lymphatic
While this system circulates lymph throughout the body

3. Cardiovascular System
3 Main Functions:
Provides Nutrients & Oxygen
Carries Away Waste
Helps Fight Disease
3 Main Components:
Heart
Blood
Blood Vessels

4. Tricuspid, Pulmonary, Aortic, & Mitral Ventricle (p. Ventricles)-
Valves-
The heart has 4 valves which act as doors to allow blood to flow through the heart but not back.
Tricuspid, Pulmonary, Aortic, & Mitral
Heart -
The heart is a muscular organ about the size of a closed fist that functions as the body’s circulatory pump
Atrium (p. Atria)-
Left and right upper chambers act as rooms during the action of the heart
Cardiac Muscle-
Cardiac muscle is an extremely specialized form of muscle tissue that has evolved to pump blood throughout the body. Cardiac muscle is only found in the heart and makes up the majority of the heart’s mass.
The heart beats powerfully and continuously throughout an entire lifetime without any rest, so cardiac muscle has evolved to have incredibly high contractile strength and endurance.
Ventricle (p. Ventricles)-
Left and right lower chambers act as rooms during the action of the heart
Septum-
Muscular wall dividing the upper and lower chambers

6. What is the purpose of the pacemaker?
To send electrical impulses stimulate the atria to contract, forcing blood into the ventricles.
The impulses travel through the heart to an area between the ventricles. There they stimulate the muscles of the ventricles to contract, pumping blood out of the heart.
What happens if your “Natural Pacemaker” does not function normally or stops working?

7. Blood Plasma- Red Blood Cells- White Blood Cells- Platelets-
Blood Types:

8. Artery (blood vessel)- carry
OXYGENATED blood AWAY from the heart
Vein (blood vessel)- which brings DEOXYGENATED blood TOWARDS the heart
Heart (muscle)-
The heart is a muscular organ about the size of a closed fist that functions as the body’s circulatory pump
Capillaries (blood vessel)- Capillaries are the smallest of the blood vessels and serve as the connection between the arteries and veins of the cardiac system

9. Lymphatic System FIGHT
Read chapter 15 page regarding the Lymphatic System, then answer the questions below.
The lymphatic system helps ______________ infection and provides immunity to disease.
How are the cardiovascular and lymphatic systems similar? How are they different?
What moves lymph through lymph vessels?
FIGHT
Both systems are a network of vessels that carry liquid.
The lymphatic system carries lymph, does not have a pump, and helps fight infections.
While the cardiovascular system carries includes the heart as a pump, carries blood
through its vessels, and provides cells with oxygen and nutrients.
Lymph is moved by the contraction of both the smooth muscles lining the wall of lymph vessels
and the surrounding skeletal muscles.

10. Vocabulary Pulmonary Circulation- Plasma- Hemoglobin- Platelets-
Arteries-
Capillaries-
Veins-
Lymph-
Pathogen-
Is the process by which blood moves between the heart and the lungs
The fluid in which other parts of the blood are suspended
The oxygen carrying protein in blood
Types of cells in the blood that cause blood clots to form
Blood vessels that carry oxygenated blood away from the heart
Small vessels that carry blood from arterioles and to venules which empty into veins
Blood vessels that return blood to the heart
Clear fluid that fills the spaces around the body cells
A microorganism that causes disease