Why would stroke volume increase during exercise?
I. Parasympathetic discharge increases cardiac contractility
II. Vasodilation of working muscles increases venous return to the heart
III. Vascoconstriction of peripheral venous blood reservoirs increases venous return
a. I and III only c. II and III only
b. I only d. I , II, and III
c. II and III only
You might also like to view...
You have arrived at a residence where a 4-month-old baby was found in his crib in cardiac arrest. Emergency Medical Responders have been on scene for 5 minutes prior to arrival. They began CPR immediately on reaching the patient's side. You have an AED with adult pads with you, but not pediatric pads. After rechecking and confirming that the patient is in cardiac arrest, you would:
A) continue CPR and transfer to the stretcher for transport. B) place the AED on the patient and follow all prompts. C) continue CPR for 2 more minutes before placing the AED. D) discuss with the parents if they want to proceed with use of the AED.
Which of the following statements regarding intensifying screens is correct?
a. The larger the crystal size, the more radiation required to produce an image. b. The thicker the emulsion, the faster the speed of the screen. c. Larger crystals produce an image with greater resolution than smaller crystals. d. Calcium tungstate crystals produce a latent image with less radiation exposure than rare earth screens.
Which is not a safety guideline in the workplace?
A. Wear appropriate personal protective equipment (PPE) in and outside the lab. B. Avoid hand-to-mouth contact or hands touching the eyes, nose, or ears while in the lab. C. No pens or pencils should be placed in the mouth or behind the ears. D. No food or drink should be in the lab or the lab refrigerator.
The subcutaneous layer of skin consists of ________ tissue
Fill in the blank(s) with correct word