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Week 13 Assignment

QuestionAnswer
Which body systems assist the muscular system in maintaining posture? The digestive, endocrine, and excretory systems
What connective tissue layer surrounds a fascicle within a nerve? The perineurium
Why do neurons in the CNS have limited ability to regenerate? They lack a neurolemma and astrocytes/microglia block regrowth with scar tissue.
What is the correct pathway of a nerve impulse through a neuron? Dendrite → Cell body → Axon
Which type of cells are more numerous in the nervous system—neurons or glial cells? Glial cells
Why is the lymphatic system not a closed circuit? Lymph returns to blood circulation via veins and does not loop back to its starting point.
Which structures in the nasal cavity deflect and swirl incoming air? The nasal conchae (turbinates)
Which vessels supply oxygenated blood directly to the myocardium? The coronary arteries
Where are gustatory (taste) cells found, and what location is the exception? On fungiform and vallate papillae and in parts of the pharynx; not on the inner cheeks.
Interferon primarily inhibits the spread of what? Viruses
Why do aspirated objects often lodge in the right primary bronchus? It is wider, shorter, and more vertical than the left bronchus.
What structure attaches AV valve cusps to papillary muscles? Chordae tendineae
Which hormone is stored extracellularly in large amounts in the thyroid gland? Thyroid hormone (specifically thyroglobulin precursor stored in colloid)
Which meningeal layer lies directly on the brain and spinal cord? The pia mater
What type of immunity involves direct attack by T cells? Cell-mediated immunity
Created by: user-1991056
 

 



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