The coronary sulcus is a groove that
A) marks the border between the atria and ventricles.
B) marks the boundary line between the right and left ventricles.
C) marks the boundary line between the right and left atria.
D) separates the atrioventricular valves from the atria.
E) separates the coronary arteries from the coronary veins.
A
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Osteocytes, despite their boney confinement, influence ongoing bone formation by secreting what paracrine?
a. calcitonin b. sclerostin c. vasopressin d. osteoprotegerin e. RANK ligand
Erythrocytes
a. do not contain a nucleus. b. survive an average of 120 days. c. do not have the ability to use O2 for energy production despite the fact that they transport O2 to all the other tissues of the body. d. do not contain a nucleus and survive an average of 120 days. e. all of these answers.
Receptors for pain called ________ respond to tissue damage.
Fill in the blank(s) with the appropriate word(s).
Several pharynx muscles are innervated by Cranial Nerve X, the vagus nerve.
Answer the following statement true (T) or false (F)