1. Lymph-vascular System
Also called lymphatic system; aids blood system; consists off lymph spaces, lymph vessels, lymph glands and lacteals. Lymph is circulated through the lymphatic vessels and filtered by the lymph nodes. Filtering helps fight infection

2. Primary functions Carry nourishment from blood to body cells
Act as a defense against invading bacteria
Remove waste material from body cells to the blood
Provide a suitable fluid environment for cells

3. Arteries of head, face & neck
Common carotid arteries
Main sources of blood supply to head, face and neck
Located on either side of neck and divide into internal and external carotid arteries
Internal carotid artery
Supplies brain, eyes, eyelids, forehead, nose and internal ear
External carotid artery
Supplies anterior(front) parts of scalp, ear, face, neck and sides of head

5. Facial Artery Branches
Also called eternal maxillary artery
Supplies blood to lower region of face, mouth and nose

6. Facial Artery Branches
Submental artery
Supplies chin and lower lip
Inferior labial artery
Supplies lower lip
Angular artery
Supplies side of nose
Superior labial artery
Supplies upper lip and region of nose

7. Superficial Temporal Artery Branches
Continuation of external carotid artery
Supplies muscles of the front, side and top of head

8. Superficial Temporal Artery Branches
Frontal artery
Supplies forehead and upper eyelids
Parietal artery
Supplies crown and side of head
Transverse facial artery
Supplies skin and masseter
Middle temporal artery
Supplies temples
Anterior auricular artery
Supplies anterior part of ear

9. Other arteries and branches
Occipital artery
Branch of external carotid artery
Supplies skin and muscles of scalp and back of head up to crown
Posterior auricular artery
Supplies scalp, area behind and above ear and skin behind ear
Supraorbital artery
Branch of internal carotid artery
Supplies forehead and upper eyelid
Infraorbital artery
Supplies muscles of the eye

10. Veins of Head and Neck Internal jugular
Most important veins of face and neck are parallel to arteries with the same name
The blood returns to the heart from the head, face and neck through these two principal veins

11. Blood supply for Arm & Hand
Ulnar arteries
Supply the little-finger side of arm and palm of hand
Radial arteries
Supply the thumb side of arm and back of hand
Most important veins are located almost parallel to arteries with the same names; veins lie nearer to surface of arms and hands than arteries