NURSING 277 Lecture Notes - Lecture 10: Trapezius Muscle, Thyroid, Extracellular Fluid
Document Summary
Cranial bones: frontal, parietal, occipital, temporal sutures. Facial bones 14 cervical support c7. C7 = important landmark when processing anatomical structures. Synthesizes + secretes t3 + t4 hormones that stimulate the rate of cellular metabolism. Drains the head and neck of excess interstitial fluid via lymph nodes. Lymph nodes line the cervical spine and neck regions as well as along the face and jaw: * nodes slowly filter the lymph and engulf pathogens, preventing harmful substances from entering the circulation. Nodes are accessible to examination only in four areas: You should also be familiar with the direction of the drainage patterns of the lymph nodes. When nodes are enlarged, check the area they drain for the source of the problem. Explore the area proximal (upstream) to the enlarged node. All head and neck structures eventually drain into the deep cervical chain. Preauricular = in front of the ear. Posterior auricular (mastoid) = superficial to the mastoid process.
