Download Arteries to the Neck, Head, and Brain

Arteries to the Neck, Head, and Brain
• These branch off the subclavian and common
carotid arteries.
1. Vertebral arteries
– branch off the subclavian arteries
– pass through the transverse foramina of the
cervical vertebrae
– Enter the skull through the foramen magnum
– Supply blood to the vertebrae and their
ligaments and muscles
Arteries to the Neck, Head, and Brain,
continued…..
2. Thyrocervical arteries
– short vessels that branch off the subclavian
arteries
– give off branches to the thyroid gland,
parathyroid glands, larynx, trachea, esophagus,
and pharynx
Arteries to the Neck, Head, and Brain,
continued…..
3. Left and right common carotid arteries
diverge into internal and external carotid
arteries
– External carotid artery goes up the side of the
head giving off branches to structures in the
neck, face, jaw, and base of the skull
– Internal carotid artery follows a deeper course
along the pharynx to the base of the skull
• Provides the major blood supply to the brain
Arteries to the Shoulder and Upper
Limb
• After the subclavian artery pass between the
clavicle and the 1st rib, it becomes the axillary
artery, which then becomes the brachial artery.
• A deep brachial artery branches off the brachial
artery and curves around the humerus to suplly
the triceps brachii.
• At the elbow, the brachial artery branches into
radial and ulnar arteries. They rejoin at the
wrist.
• Which artery is used for taking a pulse?
Arteries to the Pelvis and Lower Limb
• Common iliac arteries divide into internal and
external arteries.
– Internal supplies pelvic muscles and organs
– External supplies lower limbs – becomes the femoral
artery
• Femoral artery supplies muscles and tissues of
the thigh area.
• As it approaches the knee, it becomes the
popliteal artery, supplying the knee joint and
muscles in the thigh and calf.
Arteries to the Pelvis and Lower Limb,
continued…..
• Popliteal artery branches into:
– Anterior tibial artery
– Posterior tibial artery
• Anterior tibial artery:
– Passes between tibia and fibula
– Supplies skin and muscles in anterior and lateral
parts of leg
– Becomes the dorsalis pedis artery (???)
• Posterior tibial artery:
– Descends beneath the calf muscle
– Supplies skin, muscles, and other tissues of the leg