Discuss the significance of the extreme permeability of lymphatic capillaries
What will be an ideal response?
The extreme permeability of lymphatic capillaries allows large volumes of fluid to enter from the interstitial space. When pressure in the interstitial fluid decreases, the endothelial cells of the lymphatic capillaries flap shut. In this way, the lymphatic system plays the crucial role of precisely controlling the amount of fluid between our cells. Also, pathogens such as bacteria and cancer cells in the interstitial fluid have an easier time entering the lymphatic capillaries than the blood capillaries due to their extreme permeability. The spread of these pathogens throughout the body can be limited by lymph nodes, which act as filters by trapping pathogens and preventing them from traveling elsewhere.
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The iliac crest is the origin of the
A) quadratus lumborum. B) iliocostalis cervicis. C) longissimus cervicis. D) semispinalis capitis. E) splenius.
Which of the following occurs if body temperature rises above normal?
A) Sweat gland activity decreases. B) The activity of melanocytes increases. C) Blood flow to the dermis increases. D) Evaporative cooling decreases.
Opening channels that allow ____________________ ions or ____________________ ions result in depolarization of the plasma membrane
Fill in the blank(s) with correct word
What bone meets each parietal bone at the squamous suture?
A) zygomatic bone B) occipital bone C) temporal bone D) frontal bone