1.General Description 2.Blood Vessels of Pulmonary Circulation 3. Arteries of Systemic Circulation Guo Ling, MD,PhD Department of Anatiomy ARTERY.

1.General Description

2.Blood Vessels of Pulmonary Circulation

3. Arteries of Systemic Circulation

Guo Ling, MD,PhD Department of Anatiomy

ARTERY

1) A main A-trunk lies in a certain part of body

2) Part: marking the start and the end of an artery

3) Branches (1st ,2nd, 3rd… in grade, from a large D

to a small D)

Parietal and visceral branches exist in the trunk.

4) Symmetrical or bilateral arrangements

5) Accompanied with V and N

The purpose is to better understand the name, main

branches and specific supply targets of an artery.

General Description 1.Organ-Extrinsic Distribution Patterns of Artery

2. Organ-Intrinsic Distribution Patterns of the Artery

Radiated distribution

Transversal distribution

Longitudinaldistribution

HilumEntry

Point entry

3. Patterns of Anastomoses of Arteries

Communicating branches

Arterial arch Network Arteriovenous anastomoses

Some parts of the body build up arterial anastomoses to ensure constant blood supply to the specific areas or organs because these regions or organs often change their shape or are pressed & their blood flow is affected.

Trunk of artery

Collateral branches

4. Collateral Circulation

Composition of Pulmonary Circulation

3) Arterial ligament ( ductus arteriosus) (position ,clinic significance,CHD)

2) Pulmonary veins (4 in number)

contain venous blood.

1) Pulmonary trunk ,left and right pulmonary arteries

contain arterial blood.

Arteries of Systemic Circulation

Division

branches of the aorta

Aorta

Aortic arch

Ascending aorta

Descending aorta

Thoracic aorta

Abdominal aorta

Left \ Right coronary arteries

1. Branches of Ascending Aorta

3) Left subclavian artery

2) Left common carotid

1) Brachiocephalic trunk

2. Branches of Aortic Arch (three branches, R→L )

R. subclavian artery

R. common

carotid

Brachocephalic trunk

( brain ,visual organ.no branches outside the skull)

External carotid

Internal carotid

⑥Superficial temporal A

⑤Maxillary A Middle meningeal A

④Occipital A

③ Facial A

②Lingual A

①Superior thyroid A

Common Carotid Branches

Carotid Sinus

situated in the proximal

part of internal carotid

pressure-receptor

chemoreceptor

Carotid Body

situated behind the ramification of common carotid

Branches of Subclavian Artery

Axillary A

②Internal thoracic A

①Vertebral A

③Thyrocervical trunk

④Costocervical trunk

Superficial and Deep palmar arches

Axillary A

Brachial A

Radial A , Ulnar A

Subclavian A is the main trunk of the upper limb.

Subclavian artery

↓

Deep palmar arch

Superficial

palmar arch

Proper palmar digital A

The use of brachial A in measuring blood pressure

● Brachiocephalic trunk gives off branches behind the right sternoclavicular joint.

● Left common carotid originates from aortic arch. Right common carotid arises from brachiocephalic trunk.

Summary

● Common carotid

gives off its branches

opposite the upper

border of

thyroid cartilage.

1. Thyroid

Superior thyroid A

Inferior thyroid A

Artery Supplies for Some Organs

2. Brain

1) Internal carotid A

2) Vertebral A

3. Branches of Thoracic Aorta

Parietal branches

① 3th -11th of posterior Intercostal As

② Subcostal A

Visceral branches

① Bronchial A

② Esophageal A

1) Parietal branches

/ Inferior phrenic A

/ Lumbar A (4 pairs in number)

/ Median sacral A

 4. Branches of Abdominal Aorta Two kinds of affiliated branches: parietal branches visceral branches

unpaired

paired

  2) Visceral branches of abdominal aorta

①Renal A

②Testicular A (ovarian A)③Middle suprarenal A

①Celiac trunk

②Superior mesenteric A

③Inferior mesenteric A

Variations of Renal Arteries

① Outline of Celiac Trunk

supplying liver, gallbladder, stomach, a part of duodenum, spleen and pancreas, etc.

Left gastric A

Common hepatic A

Splenic A

right gastric A

b. Common

hepatic A proper hepatic A right hepatic A-cystic A gastroduodenal A pancreaticoduodenal A right gastroepiploic A

pancreatic branches

c. Splenic A left gastroepiploic A short gastric A , back gastric A(60—80%)

Branches of Celiac Trunk left hepatic A a. Left gastric A

② Branches of Superior Mesenteric A

Supplying digestive tract from duodenum to the left colic flexure

ARCH

a.Jejunal A

b.Ileal A

c.Ilecolic A Appendicular A

e. Middle colic A

d. Right colic A

a.Left colic A

b.Sigmoid A

c.Superior rectal A

Supplying digestive tract from left colic flexure to the rectum.

③ Branches of Inferior Mesenteric A

Abdominal aorta L.common iliac A R. common iliac A

Common iliac artery

Internal iliac A External iliac A

5. Arteries of Pelvis

and Lower Limb

1)Parietal branches

a. Obturator A

b. Superior gluteal A

c .Inferior gluteal A

Supplying the wall of pelvis

(1) Branches of Internal Iliac Artery

1)

2)

3)

a. Umbilical A

b. Superior vesical A c. Uterine A d. Inferior rectal A e. Pudendal internal A

⑤④

③

② ①

Supplying

the viscera in pelvis.

2)Viscera branches

(2) External Iliac Artery Femoral Arteries ↓

Anterior tibial A

↓

Dorsal artery of foot

Popliteal Artery ↓ ↓

Posterior tibial A

Medial , lateral plantar arteries ↓

Plantar arch

↓

Blood vessles for some organs▲ Blood vessels of lungs: two sets

Bronchial A & V (nutrient vessels)Pulmonary A & V (functional vessel )

①Left gastric A

②Right gastric A

③Right gastroepiploic A

④Left gastroepiploic A

⑤Short gastric A

⑥Back gastric A

⑤

④

③

②①⑥

▲ Arteries of stomach

1.Ileocolic A

2.Right colic A

3.Middle colic A

4.Left colic A

5.Sigmoid colic A

▲ Arteries of colon

Marginal A(concept) along the medial margin of the colon

1.Superior rectal A

2.Inferior rectal A

3.Anal A

▲ Arteries of rectum

Clinical application: taking the pulse on the radial A

A convenient way for checking the functions of heart &artery:

As drawn in the picture,please feel the beatings of the arteries in some spots of your body .