Respiratory mucosa is ciliated cuboidal epithelium with goblet cells.
Answer the following statement true (T) or false (F)
False
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Articular cartilage is composed of hyaline cartilage that lacks a perichondrium.
Answer the following statement true (T) or false (F)
Choose the FALSE statement.
A. Because sodium and potassium ions cross the membrane during an action potential, their concentrations inside the cell change significantly. B. A hyperpolarized cell has a negative membrane potential compared to one at rest. C. Within a single neuron, different types of voltage-gated ion channels may have different threshold voltages. D. If a second graded potential begins before the first one ends, the voltage changes add together.
Prior to lipase digestion of triglycerides, the solution would be _______.
A) more acidic and less alkaline B) more basic C) less alkaline D) more acidic
In smooth muscle, actin and myosin filaments:
A. are organized into sarcomeres and aligned to yield a striated appearance B. overlap, with the actin filaments anchored at dense bodies C. overlap, and contain a tropomyosin-troponin complex on the actin filament D. require phosphorylation of the myosin heavy chain to initiate muscle contraction E. typically generate contractile force in the absence of cytosolic Ca++