Fibrillation is the
a. backflow of blood throughout the heart
b. coordinated function of nodal cells
c. failure of the heart valves to function
d. flow of blood through the heart's fibrous skeleton
e. uncoordinated excitation and contraction of cardiac cells
E
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Answer the following statements true (T) or false (F)
1) The expanded portion of the axonal branch that faces a region of the sarcolemma are called synaptic terminals 2) A region of the sarcolemma that faces an expanded portion of an axonal branch is the motor end plate. 3) A space that separates the sarcolemma from the axon membrane is the synaptic vesicle. 4) The cytoplasm of the synaptic knob contains mitochondria as well as vesicles containing acetylcholine. 5) The sarcoplasmic reticulum conducts action potentials from the sarcolemma into the cell.
The ilium, ischium, and the pubis are found in the ________________________________________
Fill in the blank(s) with correct word
Unlike steroid hormones, thyroid hormones (T3 and T4) can be stored after synthesis. This is due to the fact that
a. thyroid hormones are not membrane-permeant molecules. b. thyroid hormones are protein hormones, and are stored in vesicles until an elevation in intracellular calcium stimulates their release. c. thyroid hormones are sequestered in colloid, surrounded by a wall of follicular cells, and that presents too much of a barrier for the hormones to pass through. d. thyroid hormones remain attached to a larger protein molecule until the thyroid is stimulated to secrete them, at which point they are cleaved from the protein and diffuse from the cell into the circulation. e. None of the above is correct.
Identify the structures in the photo below
What will be an ideal response?