The epidermal ridges and dermal ________ increase the area of contact between the epidermis and dermis to help connect these layers
Fill in the blank with correct word.
papillae
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Contraction of smooth muscle requires:
A. myosin light-chain phosphorylation B. Ca++-dependent activation of calcineurin C. binding of Ca++ to troponin C D. an action potential in the smooth muscle cell E. inhibition of Rho kinase
Which of the following spinal cord tracts would be a part of the sensory pathway for the tactile corpuscles?
A) Spinothalamic tracts B) Dorsal column tracts C) Corticospinal tracts D) Ventral tracts
match the nucleic acid with its description.
deoxyribonucleic acid (DNA) - ribonucleic acid (RNA) it contains a sugar called ribose; it contains nitrogenous bases A, U, C, G; it consists of one nucleotide chain; it functions mainly in the cytoplasm; it carries out the instructions of DNA - it contains a sugar called deoxyribose; it contains nitrogenous bases A, T, C, G; it consists of two nucleotide chains (double helix); it functions in the nucleus; it codes for synthesis of RNA nd protein
The intrapulmonary pressure
a. is the pressure within the air sacs of the lung. b. always equilibrates with atmospheric pressure. c. is always less than intrapleural pressure. d. both (a) and (b) above. e. all of these answers.