Page 362 - Anatomy and Physiology of Farm Animals, 8th Edition

Physiology of the Heart and Circulation / 347

volume). Without adequate filling, SV falls, rate is part of this response. The reduced
cardiac output and the intense peripheral
and therefore cardiac output can be insuf­
VetBooks.ir ficient to maintain capillary perfusion vasoconstriction resulting from the reflex
response both contribute to the character­
throughout the body. A severe reduction in
cardiac output drastically lowers blood istic blanching of mucus membranes. The
pressure, eliciting a strong response by the reduced SV is the major cause of weaken­
baroreceptor reflex. An accelerated heart ing of the pulse.