is:
(a) Diastolic blood pressure
(b) Osmotic pressure
(c) Systolic blood pressure
(d) Low pressure
(b) SA node, AV node, bundle of His, Purkinje fibers - ANSWER In what order does the impulse for
depolarization travel through the heart?
(a) AV node, SA node, bundle of His, Purkinje fibers
(b) SA node, AV node, bundle of His, Purkinje fibers
(c) SA node, AV node, Purkinje fibers, bundle of His
(d) AV node, SA node, Purkinje fibers, bundle of His
(a) Pylorus - ANSWER The muscular sphincter located between the stomach and the duodenum is the:
(a) Pylorus
(b) Cardia
(c) Chyme
(d) Rugae
(a) Threshold - ANSWER When a stimulus is strong enough to cause complete depolarization, it has
reached:
,(a) Threshold
(b) Repolarization
(c) Refractory period
(d) Action potential
(b) Stomach - ANSWER Smooth muscles can be found in the:
(a) Heart
(b) Stomach
(c) Pelvic limb
(d) Diaphragm
(a) Negative - ANSWER On inspiration, the pressure in the thoracic cavity, as compared with ambient air
pressure, is
(a) Negative
(b) Positive
(c) Same as the ambient air pressure
(d) Fluctuating
(c) Brainstem - ANSWER The cranial nerves originate from the
(a) Cerebellum
(b) Spinal cord
(c) Brainstem
(d) Cerebrum
(d) Oxytocin - ANSWER In dairy cattle, the teats and udder are gently washed before milking to stimulate
the release of one of the following, to stimulate milk letdown
,(a) Adrenalin
(b) Norepinephrine
(c) Dopamine
(d) Oxytocin
(c) 8% - ANSWER Typically, what percentage of an animal's body weight consists of blood?
(a) 0.1%
(b) 1%
(c) 8%
(d) 30%
(c) Systemic - ANSWER What circulatory system is under the highest pressure?
(a) Pulmonary
(b) Coronary
(c) Systemic
(d) Capillaries
(d) A common passage for fecal, urinary, and reproductive systems - ANSWER In birds, the cloaca is:
(a) An appendage suspended from the head
(b) A blind sac at the distal end of the jejunum
(c) A cleft in the hard palate
(d) A common passage for fecal, urinary, and reproductive systems
(d) Femoral vein - ANSWER All of the following major vessels contribute to blood flowing into the cranial
vena cava except for the:
, (a) Brachiocephalic vein
(b) Thoracic duct
(c) Azygos vein
(d) Femoral vein
(b) Ilium - ANSWER Which of these is not a division of teh small intestine?
(a) Duodenum
(b) Ilium
(c) Ileum
(d) Jejunum
(b) Endocrine system - ANSWER Which of the following is a ductless system?
(a) Exocrine system
(b) Endocrine system
(c) Lymphatic system
(d) All of the above systems contain ducts
(b) Lacteals - ANSWER The lymphatic structure found in the small intestines responsible for the transport
of fats and fat-soluble vitamins is:
(a) Afferent lymphatic vessels
(b) Lacteals
(c) Trabeculae
(d) Spleen
(a) Estrous - ANSWER The time period from the beginning of one heat cycle to the beginning of the next
is called: