The term that refers to the contraction of the ventricular mass and the pumping of blood into the systemic circulation is called:

Which of the following punctuation marks follows a salutation in a business letter?

A) Colon B) Comma C) Period D) Apostrophe

To end a session, a practitioner can apply ________ strokes for a few seconds

Fill in the blank(s) with the appropriate word(s).