Answer the following statements true (T) or false (F)
1) The M line is located at the end of a sarcomere.
2) The H zone contains thick filaments only.
3) Under a light microscope the dark staining bands are the A bands.
4) The Z line is located at the center of a sarcomere.
5) Light staining areas of a muscle fiber are called I bands.
1) FALSE
2) TRUE
3) TRUE
4) FALSE
5) TRUE
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Cortisol
A. increases the permeability of lysosomal membranes. B. promotes the storage of amino acids in the form of proteins. C. increases the permeability of capillary walls. D. stimulates the production of glucose from noncarbohydrates.
Which disorder is characterized by an exaggerated response of the sympathetic division of the ANS that occurs in most individuals with spinal cord injury at or above T6?
a) Raynaud's phenomenon b) Autonomic dysreflexia c) Reflex sympathetic dystrophy d) Diabetic neuropathy e) Horner's Syndrome
Which mineral is the most abundant mineral in the body?
a) Calcium b) Sodium c) Magnesium d) Phosphorus e) Iron
What ion is released by the fertilized egg that prevents polyspermy?
A. Ca2+ B. Cl- C. Na+ D. K+