From about week 20 to 36, fine hair called ________ covers the fetus.
Fill in the blank(s) with the appropriate word(s).
lanugo
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The ________ is the tube that conveys urine outside the body.
A. nephron loop B. collecting duct C. ureter D. urethra
________ is a type of angular movement that increases the angle between articulating bones
A) Adduction B) Abduction C) Flexion D) Extension E) Rotation
What is a chronotropic factor?
A. Anything that changes the heart rate B. The cardiac inhibitory center that uses parasympathetic neurons of the vagus nerve to keep the SA node at 70?80 beats/minute C. The cardiac accelerator center that uses sympathetic neurons to stimulate the SA and AV nodes to speed up the heart rate D. All of the answers are correct.
What variables would you need to calculate the cross-sectional area of a blood vessel?
A) Field diameter B) Total magnification C) Both field diameter and total magnification D) Neither field diameter nor total magnification