Lymph-vascular SystemLymph-vascular System

Also called lymphatic system; aids blood Also called lymphatic system; aids blood system; consists off lymph spaces, lymph system; consists off lymph spaces, lymph vessels, lymph glands and lacteals. Lymph vessels, lymph glands and lacteals. Lymph is circulated through the lymphatic vessels is circulated through the lymphatic vessels and filtered by the lymph nodes. Filtering and filtered by the lymph nodes. Filtering

helps fight infectionhelps fight infection

Primary functions Primary functions

Carry nourishment from blood to body cellsCarry nourishment from blood to body cells Act as a defense against invading bacteriaAct as a defense against invading bacteria Remove waste material from body cells to Remove waste material from body cells to

the bloodthe blood Provide a suitable fluid environment for Provide a suitable fluid environment for

cellscells

Arteries of head, face & neckArteries of head, face & neck

Common carotid arteriesCommon carotid arteries– Main sources of blood supply to head, face and neckMain sources of blood supply to head, face and neck

– Located on either side of neck and divide into internal Located on either side of neck and divide into internal and external carotid arteriesand external carotid arteries

Internal carotid arteryInternal carotid artery– Supplies brain, eyes, eyelids, forehead, nose and Supplies brain, eyes, eyelids, forehead, nose and

internal earinternal ear

External carotid arteryExternal carotid artery– Supplies anterior(front) parts of scalp, ear, face, neck Supplies anterior(front) parts of scalp, ear, face, neck

and sides of headand sides of head

Facial Artery BranchesFacial Artery Branches

Also called eternal maxillary arteryAlso called eternal maxillary artery Supplies blood to lower region of face, Supplies blood to lower region of face,

mouth and nosemouth and nose

Facial Artery BranchesFacial Artery Branches

Submental arterySubmental artery– Supplies chin and lower lipSupplies chin and lower lip

Inferior labial arteryInferior labial artery– Supplies lower lipSupplies lower lip

Angular arteryAngular artery– Supplies side of noseSupplies side of nose

Superior labial arterySuperior labial artery– Supplies upper lip and region of nose Supplies upper lip and region of nose

Superficial Temporal Artery Superficial Temporal Artery BranchesBranches

Continuation of external carotid arteryContinuation of external carotid artery Supplies muscles of the front, side and top Supplies muscles of the front, side and top

of headof head

Superficial Temporal Artery Superficial Temporal Artery BranchesBranches

Frontal arteryFrontal artery– Supplies forehead and upper eyelidsSupplies forehead and upper eyelids

Parietal arteryParietal artery– Supplies crown and side of headSupplies crown and side of head

Transverse facial arteryTransverse facial artery– Supplies skin and masseterSupplies skin and masseter

Middle temporal arteryMiddle temporal artery– Supplies templesSupplies temples

Anterior auricular arteryAnterior auricular artery– Supplies anterior part of earSupplies anterior part of ear

Other arteries and branchesOther arteries and branches Occipital arteryOccipital artery

– Branch of external carotid arteryBranch of external carotid artery» Supplies skin and muscles of scalp and back of head up to Supplies skin and muscles of scalp and back of head up to

crowncrown

– Posterior auricular arteryPosterior auricular artery» Branch of external carotid arteryBranch of external carotid artery

» Supplies scalp, area behind and above ear and skin behind earSupplies scalp, area behind and above ear and skin behind ear

– Supraorbital arterySupraorbital artery» Branch of internal carotid arteryBranch of internal carotid artery

» Supplies forehead and upper eyelidSupplies forehead and upper eyelid

– Infraorbital arteryInfraorbital artery» Branch of internal carotid arteryBranch of internal carotid artery

» Supplies muscles of the eyeSupplies muscles of the eye

Veins of Head and NeckVeins of Head and Neck

Internal jugularInternal jugular– Most important veins of face and neck are Most important veins of face and neck are

parallel to arteries with the same nameparallel to arteries with the same name– The blood returns to the heart from the head, The blood returns to the heart from the head,

face and neck through these two principal veinsface and neck through these two principal veins

Blood supply for Arm & HandBlood supply for Arm & Hand

Ulnar arteriesUlnar arteries– Supply the little-finger side of arm and palm of Supply the little-finger side of arm and palm of

handhand Radial arteriesRadial arteries

– Supply the thumb side of arm and back of handSupply the thumb side of arm and back of hand

Most important veins are located almost parallel Most important veins are located almost parallel to arteries with the same names; veins lie nearer to arteries with the same names; veins lie nearer to surface of arms and hands than arteriesto surface of arms and hands than arteries