The I band contains
A) thick and thin filaments.
B) thick filaments only.
C) thin filaments only.
D) myosin only.
C) thin filaments only.
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Which of these is not a feature of the muscosa of the gastro - intestinal tracts?
(a) lamina propria (b) goblet cells (c) myentric plexus (d) plicae circulares
Osteons are also called ________ systems.
Fill in the blank(s) with the appropriate word(s).
A patient experiencing septic shock presents with high fever and characteristic hypotension. This fast drop in blood pressure is expected, since widespread secretion of ________ from bacteria causes the innate immune system to trigger ________.
A. histamine; systemic vasodilation B. exotoxin; systemic vasodilation C. endotoxin; systemic vasodilation D. interferon; systemic vasoconstriction
What is a triad?
A. After exercise, the O2 taken in that exceeds the O2 required for resting metabolism B. A T tubule and two adjacent terminal cisternae C. The combination of myosin heads with active sites on actin molecules D. A protein found along the groove of the F-actin double helix E. The movement of myosin head while attached to actin myofilament