Anatomy and Physiology of Domesticated animals- exam 3- purnell
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34 Terms
What is responsible for contraction of the atria
SA node
what does cardiac systole mean?
heart contraction
During _____ _____ the AV valves are shut
ventricular contraction
the thoracic limb is supplied by what?
cranial vena cava
cardiac output is a function of?
stroke volume and heart rate
does the atria carry out the bulk of cardiac contractions
no
what is the semilunar valve associated with the right side of the heart?
pulmonary
after blood leaves the heart through the pulmonary artery it travels where?
the lungs
what is the AV valve on the left side of the heart?
Mitral
what is the myocardium responsible for?
cardiac contractions
what is the mediastinum contain
heart, trachea, and esophagus
valves of the heart are
passive
arteries carry ___ blood ___ from the heart
oxygenated, away
hematopoiesis occurs where?
red bone marrow
where is the site of gas exchange in the lungs
alveolar sacs
what is the normal pH of blood?
7.35-7.45
what carries CO2/O2 for gas exchange, requires iron to function, contains4 AA's and a heme group?
hemoglobin
what cells are associated with an allergy response?
basophil and eosinophil
most lymph will re-enter systemic circulation through where?
the thoracic duct
the spleen plays a role in what systems?
vascular and lymphatic
b cells are localized to what?
lymphatic circulation
NK cells induce what?
apoptosis
what are NK cells stimulated by?
cytokines
Suppressor T cells regulate production of T and B cells through what?
negative feedback
B cells produce what?
antibodies
Helper T cells produce what?
cytokines
Killer T cells destroy what?
antigens
What is in the lower respiratory system?
larynx, trachea, lungs, bronchi
What do goblet cells produce?
mucus
what covers the opening to the trachea during swallowing?
epiglottis
what is the bohr effect?
relationship of blood pH and affinity of hemoglobin
Who has the most flexible nare structure?
the horse
what makes up the trachea
hyaline cartilage
what type of process is expiration
passive process