Cells that are thick in the middle and tapered toward the ends are called ________ cells.
A. columnar
B. stellate
C. spheroid
D. squamous
E. fusiform
Answer: E
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The functional layer of the endometrium is shed when a woman has her period.
Answer the following statement true (T) or false (F)
An ectopic focus is the place where
a. an abnormally excitable area of the heart initiates a premature action potential b. all of the electrical impulses of the heart terminate normally c. an ECG lead is attached on the outside of the chest d. a heart valve is attached e. the chordae tendineae attach to a valve
Which of the following neurotransmitters binds to a receptor associated with a G protein rather than one associated with an ion gate?
A) monoamines B) acetylcholine C) glutamate D) aspartate E) GABA
What is the function of chordae tendineae?
a. Prevent the cusps of the AV valves from opening back into the atrium. b. Close the AV valves during systole. c. Generate force to push blood through the heart. d. Carry electrical signals through the ventricular myocardium