____________________ is an essential component of all body tissues.?
Fill in the blank(s) with correct word
Water
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The cardiovascular system is a control center for virtually all the body's organs.
Answer the following statement true (T) or false (F)
Which of the following best describes the term sarcoplasmic reticulum?
A) protein that accounts for elasticity of resting muscle B) repeating unit of striated myofibrils C) storage and release site for calcium ions D) thin filaments are anchored here E) largely made of myosin molecules
The epithelium of the oesophagus is:
(A) stratified squamous nonkeratinized epithelium (B) stratified squamous keratinized epithelium (C) transitional epithelium of Henle (D) ciliated pseudostratified columnar epithelium
Acetylcholine triggers the synthesis of the second messenger cAMP only in neurons of the PNS
Indicate whether the statement is true or false