The enlarged coronary vessel outside the heart that empties blood into the right atrium is the ________.
Fill in the blank(s) with the appropriate word(s).
coronary sinus
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An example of a highly vascular tissue is __________ tissue. An example of a tissue that is not highly vascular is __________.
A. epithelial; cartilage B. muscular; osseous tissue C. dense regular connective; dense irregular connective tissue D. areolar; cartilage E. nervous; osseous tissue
What is the development of a girl's breasts at puberty called?
A. Menarche B. Climacteric C. Pubarche D. Thelarche E. Mammarche
Which of the following directly initiates the release of calcium ions from the endoplasmic reticulum?
A. Inositol triphosphate (IP3) B. Phospholipase C C. Calmodulin D. G-proteins
Physiological contracture
A. occurs when muscles are resting. B. is a condition in which cross-bridges cannot release. C. is caused by an abundance of ATP in muscle fibers. D. results when muscles are well exercised. E. results when the neurotransmitter remains in the receptor.