1. Title: Anat & Phys 4/13/07 Objectives: Class Topics . Heart Test
8/11/2019
Title: Anat & Phys 4/13/07
Objectives: .
Class Topics
Heart Test
Notes – blood vessels
“A vision is a task without a dream – a task without a vision is drudgery – but a task with vision can change the world.”
Black Elk
Sunday, August 11, :29 AM

2. Class Assignments Heart coloring W.S. 4/13/07 Heart test 4/13/07
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Class Assignments
What
By When
Heart coloring W.S. 4/13/07
Heart test 4/13/07
How does circulation vary… 4/17/07
Due this class period
Due next class period
Due in the future

3. Posttest Activities Hand in test
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Posttest Activities
Hand in test
Pick up “How does circulation vary with different activities?” on the lab stool

4. Blood vessels Artery Arteriole
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Blood vessels
Artery
thick walled, can contract, moves blood away from heart
Arteriole
smaller lumen than arteries, source of vasoconstriction and vasodilation

5. Blood vessels Capillary Venule Vein - 65% of blood at any time
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Blood vessels
Capillary
microscopic size, thin walled - for diffusion, osmosis, facilitated diffusion, and active transport
Venule
small lumen, gain size closer to heart
Vein - 65% of blood at any time
thick walled (not as thick as artery), larger lumen than artery, internal valves to avoid pooling

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From:

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Capillary beds Fig 13-14
What purpose do these serve in maintaining homeostasis?
From:

9. Circulatory Pathways Pulmonary circulation Systemic circulation
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Circulatory Pathways
Pulmonary circulation
to lungs and back to heart
Systemic circulation
supplying blood to all systems and organs except lungs
All starts with the aorta

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From:

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From:

12. Branches of the Aorta Ascending aorta Arch of the Aorta
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Branches of the Aorta
Ascending aorta
Coronary arteries
supply blood to the heart
blockage can lead to myocardial infarction
Arch of the Aorta
Brachiocephalic artery
left common carotid artery
Left subclavian artery

13. Branches of the Aorta Descending Aorta intercostal arteries
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Branches of the Aorta
Descending Aorta
intercostal arteries
celiac artery
superior mesenteric artery
suprarenal arteries
renal arteries
gonadal arteries
inferior mesenteric artery
common iliac arteries