Explain why prolonged periods of reading tire the eye muscles and result in eye strain
What will be an ideal response
Reading or other close work requires almost continuous accommodation, pupillary constriction, and convergence, which lead to tiredness of the eye muscles.
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Cardiovascular effects of the sympathetic division include all of the following EXCEPT ________
A) weak dilation of the blood vessels of skeletal muscles during exercise B) increase of heart rate and force C) dilation of the blood vessels serving the skin and digestive viscera D) constriction of most blood vessels
What is the muscle that originates above the acetabulum and inserts on the tibia?
A) tensor fasciae latae B) rectus femoris C) adductor magnus D) sartorius E) adductor longus
___ lines body cavities, covers body surface, and forms the lining of many organs.
A) Interstitial tissue. B) Muscle tissue. C) Adipose tissue. D) Epithelial tissue. E) Nervous tissue.
Which organelle is responsible for carrying out cellular respiration?
A. Cell membrane B. Mitochondria C. Golgi complex D. Ribosomes