the circulatory system transports blood to deliver ... · blood flow in the body • the blood...
TRANSCRIPT
![Page 1: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/1.jpg)
The circulatory system transports blood to deliver important
substances, such as oxygen, to cells and to remove wastes, such
as carbon dioxide.
Section 1: Circulatory System
K
What I Know
W
What I Want to Find Out
L
What I Learned
![Page 2: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/2.jpg)
Essential Questions
• What are the main functions of the circulatory system?
• How does the blood flow through the heart and body?
• What are the similarities and differences between the major components of
the blood?
Circulatory SystemCopyright © McGraw-Hill Education
![Page 3: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/3.jpg)
Review
• muscle contraction
New
• artery
• capillary
• vein
• valve
• heart
• pacemaker
• plasma
• red blood cell
• platelet
• white blood cell
• atherosclerosis
Circulatory SystemCopyright © McGraw-Hill Education
Vocabulary
![Page 4: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/4.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
Functions of the Circulatory System
• Transports oxygen and nutrients
• Carries disease-fighting materials produced by the immune system
• Contains cell fragments and proteins for blood clotting
• Distributes heat throughout the body to help regulate body temperature
![Page 5: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/5.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
Blood Vessels
• Arteries
• Capillaries
• Veins
![Page 6: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/6.jpg)
Structure of Blood Vessels
Animation
FPO
Add link to concepts in motion animation from page 993 here.
Circulatory SystemCopyright © McGraw-Hill Education
![Page 7: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/7.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
Blood Vessels
Arteries
• Oxygen-rich blood is carried away from
the heart in large blood vessels called
arteries.
• Arteries are composed of three layers:
• Outer layer of connective tissue
• Middle layer of smooth muscle
• Inner layer of endothelial tissue
![Page 8: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/8.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
Blood Vessels
Capillaries
• Microscopic blood vessels where the exchange of important substances and
wastes occur are capillaries.
• The walls are only one cell thick.
![Page 9: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/9.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
Blood Vessels
Veins
• The largest blood vessels are veins.
• Carry oxygen-poor blood back to the heart
• Contraction of skeletal muscles helps keep the blood moving.
• Valves are flaps of tissue that prevent blood from flowing backward.
![Page 10: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/10.jpg)
Circulatory System
BrainPOP
FPO
Add link to concepts in motion animation from page 994 here.
Circulatory SystemCopyright © McGraw-Hill Education
![Page 11: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/11.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
The Heart
• A hollow, muscular organ that pumps blood throughout the body
• Pumps oxygenated blood to the body
• Pumps deoxygenated blood to the lungs
![Page 12: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/12.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
The Heart
Structure of the heart
• Divided into four compartments called chambers
• The right atrium and the left atrium receive blood returning to the heart.
• The right and left ventricles pump blood away from the heart.
• A strong muscular wall separates the left side of the heart from the right side of the heart.
• Valves separate the atria from the ventricles and keep blood flowing in one direction.
![Page 13: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/13.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
![Page 14: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/14.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
The Heart
How the heart beats
• The atria fill with blood.
• The atria contract, filling the ventricles
with blood.
• The sinoatrial (SA) node sends out
signals that cause both atria to
contract.
• The signal travels to another area in
the heart called the atrioventricular
node, causing both ventricles to
contract.
![Page 15: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/15.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
The Heart
How the heart beats
• Pulse
• The alternating expansion and relaxation of the artery wall caused by
contraction of the left ventricle
• Blood Pressure
• A measure of how much pressure is exerted against the vessel walls by
the blood
![Page 16: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/16.jpg)
Blood Pressure
Virtual Lab
FPO
Add link to concepts in motion animation from page 994 here.
Circulatory SystemCopyright © McGraw-Hill Education
![Page 17: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/17.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
The Heart
Blood flow in the body
• Deoxygenated blood flows from the
right atrium into the right ventricle
and is pumped into the pulmonary
arteries that lead to the lungs.
• Oxygenated blood flows from the
lungs to the left atrium of the heart.
![Page 18: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/18.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
The Heart
Blood flow in the body
• The blood moves from the left atrium into the left ventricle, which pumps
the blood into the largest artery in the body, the aorta.
• Oxygen is released from the blood into the body cells by diffusion, and
carbon dioxide moves from the cells to the blood by diffusion.
![Page 19: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/19.jpg)
The Circulatory System
Animation
FPO
Add link to concepts in motion animation from page 996 here.
Circulatory SystemCopyright © McGraw-Hill Education
![Page 20: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/20.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
Blood Components
Plasma
• The clear, yellowish portion of blood is the plasma.
• Carries glucose, fats, vitamins, minerals, hormones, and waste products
from the cells
![Page 21: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/21.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
Blood Components
Red Blood Cells
• Red blood cells carry oxygen to all of the body’s cells
• Consist of an iron-containing protein called hemoglobin
• Hemoglobin chemically binds with oxygen molecules and carries oxygen to
the body’s cells.
![Page 22: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/22.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
Blood Components
Platelets
• Cell fragments that are important in forming blood clots are platelets.
• Collect and stick to the vessel at the site of the wound
• Release chemicals that produce a protein called fibrin
• Fibrin is a protein that weaves a network of fibers across the cut that traps
blood platelets and red blood cells.
![Page 23: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/23.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
Blood Components
White Blood Cells
• The body’s disease fighters are the white blood cells, which are produced in
bone marrow.
• Recognize disease-causing organisms
• Produce chemicals to fight the invaders
• Surround and kill the invaders
![Page 24: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/24.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
Blood Groups
ABO blood group
• There are four types of blood—A, B, AB, and O.
Rh blood group
• Another marker found on the surface of red blood cells
Circulatory System Disorders
• Atherosclerosis is the condition of blocked arteries.
• When blood flow is reduced or blocked, the heart must work even harder to pump blood and vessels may burst.
![Page 25: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/25.jpg)
Blood Types
Interactive Table
FPO
Add link to concepts in motion interactive table from page 998 here.
Circulatory SystemCopyright © McGraw-Hill Education
![Page 26: The circulatory system transports blood to deliver ... · Blood flow in the body • The blood moves from the left atrium into the left ventricle, which pumps the blood into the largest](https://reader035.vdocument.in/reader035/viewer/2022081613/5fbccf74f9bfcf6db72c25ad/html5/thumbnails/26.jpg)
Circulatory SystemCopyright © McGraw-Hill Education
Review
Essential Questions
• What are the main functions of the circulatory system?
• How does the blood flow through the heart and body?
• What are the similarities and differences between the major components of
the blood?
Vocabulary
• artery
• capillary
• vein
• valve
• heart
• pacemaker
• plasma
• red blood cell
• platelet
• white blood cell
• atherosclerosis