1. Chapter 13 Cardiovascular System
The Arterial System p
Day 5

2. Paths of Circulation Pulmonary Circuit Systemic Circuit
Carries blood from the heart to the lungs and back
Systemic Circuit
Carries blood from the heart to all other parts of the body and back

3. Arterial System Aorta Principle Branches of Aorta
Largest diameter artery in body (Fig )
Principle Branches of Aorta
Ascending Aorta
Top of aorta that leads to major
branches of aorta
Arch of Aorta
Brachiocephalic Artery
Leads to Right Subclavian and
Right Common Carotid
Left Common Carotid
Left Subclavian Artery

4. Arterial System Cont. Descending Aorta Thoracic Aorta
Contains the thoracic aorta and abdominal aorta
Thoracic Aorta
Bronchial Artery
Bronchi
Pericardial Artery
Pericardium
Esophageal artery
esophagus
Mediastinal artery
Mediastinum
Posterior intercostal artery
Thoracic wall

5. Arterial System Cont. Abdominal Aorta Celiac Artery
Organs of upper digestive tract
Gastric Artery-stomach
Splenic Artery-spleen
Hepatic Arteries-liver
Superior and Inferior mesenteric
arteries-sm. and lg. intestines
Suprarenal Arteries-adrenal gland
Renal Arteries-kidneys
Gonadal arteries-ovary or testes
Phrenic Artery-diaphragm
Lumbar Artery-posterior ab. Wall
Middle Sacral Artery-sacrum and coccyx
Branches into common iliac arteries

6. Arterial System Cont. Common Iliac Right Common Iliac
Left Common Iliac
Supplies blood to lower regions of ab. Wall, pelvic organs and lower extremities

7. Arterial System Cont. Arteries to Neck, Head, and Brain
Branches of subclavian and common carotid arteries supply blood to structures within neck, head, and brain.
Vertebral Arteries
Basilar Artery-branches to pons, midbrain, and cerebellum
Posterior cerebral arteries-occipital and temporal lobes
Circle of Willis
Connects vertebral artery to internal carotid artery systems. Also equalizes blood pressure in the brain’s blood supply.

8. Arterial System Cont. Thyrocervical Arteries External Carotid Artery:
Branch to thyroid, paraythyroid, larynx, trachea, esophagus, and pharynx as well as muscles in neck, shoulder, and back.
External Carotid Artery:
Upward side of head, branching into the neck, face, jaw, scalp and base of skull
Superior Thyroid Artery-larynx and thyroid gland
Lingual Artery-tongue and salivary glands
Facial Artery-Pharynx, palate, chin, lips and nose
Occipital Artery-posterior scalp, meninges, neck muscles
Posterior Auricular Artery-ear and lateral scalp
Maxillary Artery-teeth, jaw, cheek, and eyelids
Superficial Temporal Artery-gland and surface of the face and scalp

9. Arterial System Cont. Internal Carotid Artery
Follows a deep course upward along the pharynx to the base of the skull. Also contains baroreceptors that maintain B.P.
Ophthalmic Artery-eye and eye muscles
Anterior Choroid Artery-Choroid plexus and brain
Arteries of shoulder and upper limb
Subclavian-branches into arm
Axillary Artery- supplies branches to structures in axilla and chest wall, become Brachial Artery that follows the humerus to elbow where it branches into Radial and Ulnar Arteries
Ulnar-follows ulnar side down arm
Radial-follows the radial side of arm-used for pulse

10. Arterial System Cont. Arteries of the Thoracic and Ab. Walls
Internal Thoracic Artery
Supplies intercostal muscles and mammary glands
Arteries of the Pelvis and Lower Limb
Internal Iliac Artery-pelvic muscles, visceral structures, gluteal muscles, external repro. Organs
External Iliac Artery-main supply to lower limbs-becomes femoral
Femoral Artery-anterior surface of upper thigh
Popliteal Artery-braches off femoral artery at knee, leads to anterior and posterior tibia arteries
Anterior Tibial Artery-between tibia and fibula
Posterior Tibial Artery-larger of the two popliteal, supplies calf and lower leg

12. The List to Know R and L Coronary Arteries Aorta Brachiocephalic
R and L Common carotid
R and L Subclavian
R and L Gastric
Celiac
Splenic
Hepatic
R and L Renal
Gonadal
Sup. And Inf. Mesenteric
Lumbar
Sacral
R and L. Common Iliac
Superior thyroid
Vertebral
Carotid sinus
Occipital
Internal carotid
External carotid
Maxillary
Basilar
Posterior auricular
Facial
Anterior Choroid
Axillary
Brachial
Radial
Ulnar
Anterior and Posterior Intercostal
Internal and External Iliac
Femoral
Popliteal
Anterior Tibial
Posterior Tibial