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Lesson Title: Anatomy of the Vascular
System
Unit Title: Circulatory System
Lesson Purpose/Goal: Explain the components of the vascular system
Teacher Name: Jones
Time: 45min
Instructional Objectives: (Students…)
1. Explain the anatomy and make up of the vascular system.
2. Map out the path of the blood in the vascular system.
TEKS: 130.7.c (8)(B)
TAKS:
LifeKnowledge Precept: (If Applicable)
Materials/Supplies Needed:
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References:
 IMS
 Modern Livestock and Poultry
Global Contextual Set: (1. Where we have been; 2. Where we are going & why; 3. What we are doing today; 4. How learners should conduct themselves)
1. Yesterday we went over some of the primary components of the circulatory system.
2. We are going to be learning more of that anatomy because it is very important not only in reguards to
livestock, but we have it to.
3. So today we will be going forward to illustrate and gain knowledge about our vascular system.
4. Be prepared to participate, and have fun learning.
Focus/Interest Approach/Anticipatory Set: (Captures attention and focuses students’ thinking through physical/cognitive engagement. Principle – Experience before label.)
 Not too long ago, I somehow managed to shoot myself in the leg. When I finally arrived at the hospital,
and everything got taken care of, the doctor told me that the bullet was approximately a centimeter from
my artery. (Elaborate a little bit on the story.) What I am getting at here what was the point of that artery
being there? (Arteries carry blood away from the heart to other parts of the body.)
Lesson Content:
Objective 1: (Explain the anatomy and make up of the vascular system. )
Teaching Method: Illustration
(Include all content, activities, directions, scripting, etc. below. Use as much space as needed)
The vascular system is made up of three types of blood vessels:
- Arteries
- Capillaries
- Veins
 Arteries are blood vessels that carry blood, rich in oxygen, from the heart to
other parts of the body. The large arteries have thick walls of elastic like
tissue that enables them to withstand the blood pressure created by the
heart’s beating.
 As the arteries branch out away from the heart, they branch out into smaller
arteries called arterioles. The smaller arteries walls are composed of large
amounts of smooth muscle instead of the elastic tissue.
 Arterioles branch into smaller vessels called capillaries. At this junction, the
arterioles have a thick layer of smooth muscle in their walls that controls the
amount of blood each capillary receives.
 Blood pressure for the entire circulatory system is maintained by the tension
at the end of the arterioles.
Notes:Use students in the
class to represent the different
parts, ie: arteries, veins,
capillaries, etc. Have them
stand at the front of the class.
Size of student matters
Grab a student to stand in a
line.
Get a smaller student
Get another student
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Shock is a serious condition that occurs when the arterioles relax (dilate) and
allow too much blood into the capillary beds. This jeopardizes vital organs.
Capillaries are tiny, thin-walled blood vessels that connect arteries to veins
and are located in all body tissues. They are so small in diameter that blood
cells pass through in a single file.
The semi permeable membrane of capillary walls allows nutrients, oxygen,
and water to diffuse from the blood to the tissues. Waste products like carbon
dioxide, diffuse from the tissues into the blood.
Large tubular connectors, which also connect arterioles to venules, are
located within the capillary beds. These tubules allow more blood to flow
through an area, help warm tissues, and increase the return of blood pressure
to the heart.
Once blood passes through the capillary beds, it begins its return to the heart.
Veins are the blood vessels that return blood to the heart from all parts of the
body.
Get another student
Capillaries unite to form small veins called venules. The venules join
Get another student
together to form larger veins which have thin walls and are very collapsible.
For each artery, there is a much larger vein counterpart.
Veins have valves that aid the return flow of blood and prevent the blood
from reversing flow. These valves allow for muscle contractions and
movement of body parts. The valves also assist the return flow of blood to
the heart when blood pressure is low.
Checking for Understanding:
 What do arteries do? What do veins do? Are there any further questions?
Contextual Bridge:
 Since we have a basis of the anatomy of the vascular system, we will now map out the path of blood
through out the vascular system.
Objective 2: (Map out the path of blood in the vascular system.)
(Include all content, activities, directions, scripting, etc. below. Use as much space as needed)
What we are going to do is map out the path of the blood as it travels through the
vascular system. I will write it out on the board but I will not write anything until
you tell me. Beginning with the heart, where do we go next?
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Teaching Method: Teacher
led activity
Notes:
Heart
Arteries
Arterioles
Capillaries
Veins (Venules)
Larger Veins
Checking for Understanding:
 What further questions do you have.
Contextual Bridge:
 Now that we have got all of or information lined out, we will have a little bit of practice with this
information.
Guided Practice:
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(Group oriented and teacher supported. Include all activities, directions, and description below.)
Contextual Bridge:
 Well we have had a little bit of practice, but it will not hurt to have just a little more.
Independent Practice: (Individualized and independent activity occurring in the classroom. Include all activities, directions, and description below.)
 Now, you will complete this quiz and turn it in by the end of class.
Closure - Global Contextual Set: (1. Where we have been; 2. Where we are going & why; 3. What we will do next; 4. How learners should conduct themselves or what supplies are needed next.)
1. Today we have talked about the anatomy of the vascular system and we have mapped out the path of
blood within that system.
2. We are going to be learning more of that anatomy because it is very important not only in reguards to
livestock, but we have it to.
3. Tomorrow people from Lincoln Tech will be here with a presentation to show you all.
4. So be prepared for that and be respectful.
Extension Activity:

(Optional)
Assessment: (What formal method will be utilized to measure students’ knowledge/learning?)
 Students will be tested over the objectives at the conclusion of the unit.
(*Note: All supplemental materials including but not limited to handouts, visuals, worksheets, etc. required for
the lesson is to be included on the following pages. Each should be separated by a page break.)
Vascular System Quiz
1. T / F Arteries carry blood to the heart.
2. T / F Veins carry blood away from the heart.
3. T / F Arteries branch out into smaller arteries called arterioles
4. T / F Venules are small veins that carry blood to larger veins.
5. T / F Capillaries are tiny thin walled blood vessels connecting arteries to veins.
6. Circle the correct sequence as blood leaves the heart and starts to come back to the heart.
a. Heart, veins (Venules), capillaries, arterioles, arteries, larger veins
b. Heart, capillaries, arteries, arterioles, large veins, veins (venules)
c. Heart, arteries, arterioles, capillaries, veins (venules), larger veins