Which are possible functions of skeletal muscles?
a: Maintenance of posture
b: Both highly coordinated and localized simple movements
c: Temperature regulation
d: Support of certain body organs
e: Regulation of the movement of material through certain body tracts
A. a, b, e
B. a, b, c
C. a, b, c, e
D. a, b, c, d
E. a, b, c, d, e
E
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________ muscle contraction occurs when the muscle length is relatively constant but the muscle tension changes
A) A wave summation B) An isotonic C) An isometric D) A complete tetanus
What is NOT one of the three main parts of a cell?
A) plasma membrane B) nucleus C) extracellular fluid D) cytoplasm
A bit of dust blows into and touches the cornea of the eye. Which of the following is likely to happen?
A) Stimulation of the facial nerve (VII) will be perceived as pain. B) Stimulation of the optic nerve (II) will cause tears to flow from the lacrimal gland. C) Nothing, because there is no sensory information sent from the cornea. D) Stimulation of the ophthalmic division of the trigeminal nerve (V) will cause blinking.