Biology 224 Human Anatomy and Physiology II Week 2; Lecture 2; Wednesday Dr. Stuart S. Sumida

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Biology 224 Human Anatomy and Physiology II Week 2; Lecture 2; Wednesday Dr. Stuart S. Sumida Peripheral Circulation

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Biology 224 Human Anatomy and Physiology II Week 2; Lecture 2; Wednesday Dr. Stuart S. Sumida. Peripheral Circulation. UNPAIRED VESSLES OF THE BODY Serve structures of the GUT (splanchnopleure). PAIRED VESSLES OF THE BODY Serve structures associated with the body wall (somatopleure.). - PowerPoint PPT Presentation

Transcript of Biology 224 Human Anatomy and Physiology II Week 2; Lecture 2; Wednesday Dr. Stuart S. Sumida

Page 1: Biology 224 Human Anatomy and Physiology II Week 2; Lecture 2; Wednesday Dr. Stuart S. Sumida

Biology 224Human Anatomy and Physiology IIWeek 2; Lecture 2; WednesdayDr. Stuart S. Sumida

Peripheral Circulation

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UNPAIRED VESSLES OF THE BODY

Serve structures of the GUT (splanchnopleure).

PAIRED VESSLES OF THE BODY

Serve structures associated with the body wall (somatopleure.)

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UNPAIRED ARTERIES OF THE ABDOMINAL GUT

Foregut: Celiac Artery (3 main branches)Splenic, Left gastric, Hepatic

Midgut: Superior Mesenteric Artery

Hindgut: Inferior Mesenteric Artery

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Celiac Artery and its Branches

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SuperiorVena Cava

AzygousVein

HemiazygousVein

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Branches of the Internal Iliac Artery (In order)1. Iliolumbar2. Lateral sacral3. Superior gluteal4. Inferior gluteal5. Internal pudendal6. Obturator7. Middle rectal8. Inferior vesicle9. Superior vesicle

10. The old umbilical artery connects to end of internal iliac.

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PAIRED ARTERIES OF THE BODY WALL: ARMS AND THORAX

•Subclavian Arteries •12 Intercostal Arteries•Superior Phrenic Arteries (to diaphragm from above)

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BEFORE it passes the clavicle, the subclavian artery has 2 main branches:

1. Vertebral a.2. Thyrocervical

trunk

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Subclavian artery becomes the AXILLARY ARTERY.

It has 6 branches, organized relative to the pectoralis minor muscle.

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6 banches of AXILLARY ARTERY.

“1 - 2 - 3”

1 before pectoralis minor: supreme thoracic a.

2 deep to pectoralis minor: thoracoacromial a. and lateral thoracic a.

3 beyond pectoralis minor: anterior humeral circumflex a., posterior humeral circumflex a., and subscapular a.

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PAIRED ARTERIES OF THE BODY WALL: ABDOMEN

•Lumbar arteries (5)•Renal arteries•Gonadal (ovarian, testicular) arteries•Common Iliac Arteries; Branches:

•External Iliac Arteries•Internal Iliac Arteries

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Body wall veinsparallel the arteries.

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PORTAL SYSTEMS

A circulatory system (set of tubes) with a capillary bed at BOTH ends.

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Hepatic Portal System

Foregut: Splenic Vein (= Lienic Vein)

Midgut: Superior Mesenteric Vein

Hindgut: Inferior Mesenteric Vein

All dump into Hepatic Portal Vein, which goes to Liver.

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