Fibroblasts and protein fibers are associated with both ________ and ________.
A. spongy bone; compact (dense) bone
B. elastic cartilage; hyaline cartilage
C. plasma; formed elements
D. adipose tissue; reticular tissue
E. dense regular; dense irregular connective tissues
Answer: E
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Between the ages of 20 and 80, we lose about ________ percent of our renal function
A) 40 B) 50 C) 30 D) 25
Troponin
a. binds with calcium to prevent sarcomere shortening. b. breaks down actin. c. breaks down myosin. d. forms the boundaries of a sarcomere. e. is an enzyme in the sarcomere.
What is a role of calcium ions in the second-messenger cascade involving phospholipase C, diacylglycerol, and inositol triphosphate?
A. It splits and activates G-protein subunits. B. It binds to the endoplasmic reticulum and causes the release of inositol trisphosphate. C. It phosphorylates cell proteins. D. It is the first messenger that binds to the integral membrane protein receptor. E. Along with diacylglycerol, it activates protein kinase C.
The appendicular region consists of the head, neck and trunk
Indicate whether the statement is true or false