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A&P VTNE
VTNE review
Question | Answer |
---|---|
where are striated muscles located | heart and skeletal muscles |
the pressure in the systemic arteries during ventricular contraction is | systolic blood pressure |
difference between the systolic and diastolic pressure of the expanding and contracting arterial walls is the | pulse |
input from what system causes vasoconstriction during exercise and therefore an increase in blood pressure | sympathetic nervous system |
cardiac muscle is | striated involuntary |
in what order does the impulse for depolarization travel through the heart | SA node, AV node, bundle of his, purkinje fibers |
the wave on the ecg/ekg that is associated with the atrial wall depolarization | P wave |
SA node is located in the wall of which chamber | Right Atrium |
the muscular sphincter located between the stomach and duodenum is the | pylorus |
type of cell responsible for the transmission of impulses through the nervous system | Neuron |
system anatomically composed of the brain and spinal cord | central nervous system |
functions that an animal does not have to consciously control, such as peristalsis in the intestines, are influenced by the | autonomic nervous system |
cranial nerves and spinal nerves are anatomically part of what system | peripheral nervous system |
sensory nerves are considered | afferent nerves |
an imbalance of what minerals can affect nerve function | Na and K |
when stimulus is strong enough to cause complete depolarization, it has reached | threshold |
what happens within the neuron that allows local anesthetics to be effective | sodium channels being blocked |
smooth muscles can be found in | stomach |
which muscle cells have single nuclei | smooth and cardiac |
cattle and swine display what type of estrous cycle | polyestrous |
dogs demonstrate what type of estrous cycle | diestrous |
what species is an induced ovulator | cat/feline/queen |
in what stage of estrous cycle does corpus luteum develop | metestrus |
hormone produced by a developing ovarian follicle | estrogen |
what hormone contracts the female reproductive tract to help move spermatozoa into the oviducts | oxytocin |
to achieve normal pregnancy, blastocyst attaches to what structure | endometrium |
giving birth is known as | parturition |
from the estrous cycle to parturition, in what order are following hormones released | estrogen, progesterone, oxytocin |
animal with cotyledonary placenta | sheep |
in cotyledonary placentation the mothers side of the attachment is called the | caruncle |
a pregnant mare has what kind of placentation | diffuse |
a pregnant bitch has what kind of placentation | zonary |
a pregnant rodent has what kind of placentation | discoid |
a pregnant queen has what kind of placentation | zonary |
the canine uterus is shaped like the letter | Y |
how many mammary glands are typically found on a bitch | 8-12 |
which reaction is the result of parasympathetic nervous system stimulation | decreased heart rate |
result of sympathetic nervous system stimulation | dilated pupils |
acetylcholine is released as a neurotransmitter by | postganglionic parasympathetic nerve fibers |
neurotransmitter that is most responsible for "fight or flight" reaction | epinephrine |
in a healthy heart, the heartbeat is initiated by the | SA node |
on an ecg/ekg the T Wave is most closely associated with | ventricular repolarization |
on an ecg/ekg the P Wave is most closely associated with | atrial depolarization |
which of the following conditions is most life threatening | ventricular fibrillation |
increasing a neuron's permeability to Na will cause | hyper excitability |