Lab 7 Flashcards
What are the primary lymphatic structures?
Thymus and bone marrow
What are the secondary lymphatic structures?
Lymph nodes, lymph nodules, and spleen
Where are the pharyngeal tonsils located?
Top of nasal pharynx.
Where are the palatine tonsils located?
Where oral cavity changes to oral pharynx.
Where are the lingual tonsils located?
Posterior of tongue.
What composes the extracellular fluid?
Plasma and interstitial fluid.
When there is an excess in extracellular fluid from where to where does it flow?
From plasma to interstitial (excluding kidneys) continuously enters lymphatic capillaries to become lymph.
What is the primary driving force driving lymphatic circulation?
Smooth muscle layer surrounding lymphatic vessels (distension triggers contraction)
What is the assisting driving force driving lymphatic circulation?
Skeletal muscle and respiratory pumps (
What causes swelling?
Blockage of lymph flow can lead to build up of if (edema)
What is the path
Most lymphatic flow goes from: lymphatic capillaries – afferent lymphatic vessel – lymphatic structure – efferent lymphatic vessel – lymphatic trunk – lymphatic duct.
In this diagram: lymphatic capillaries – afferent lymphatic vessel – lymph node – efferent lymphatic vessel.
What does the jugular trunk drain?
Neck and head.
What does the subclavian trunk drain?
Arm
What does the bronchomediastinal trunk drain?
Lungs, heart, trachea, and mammary glands
What dies the lumbar trunk drain?
Legs, pelvis, and kidneys
