Arteries to the Neck, Head, and Brain - PowerPoint PPT Presentation

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Arteries to the Neck, Head, and Brain
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Arteries to the Neck, Head, and Brain

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  1. Arteries to the Neck, Head, and Brain • These branch off the subclavian and common carotid arteries. • 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….. • 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….. • 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 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?

  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 dorsalispedis artery(???) • Posterior tibial artery: • Descends beneath the calf muscle • Supplies skin, muscles, and other tissues of the leg