1. 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

2. 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

3. 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

4. Arteries to the Shoulder and Upper Limb After the subclavian artery pass between the clavicle and the 1 st 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?

5. 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.

6. 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