Day 1 (Ax, Sx, Pharm) Flashcards
(135 cards)
Where are striated muscles located?
heart and skeletal muscles
Systemic circulation is under what kind of pressure?
high pressure
A pregnant mare has what kind of placentation?
diffuse
The pressure in the systemic arteries during ventricular contraction is what?
systolic blood pressure
What hormone contracts the female reproductive tract to help move spermatozoa into the oviduct?
oxytocin
Cardiac muscle is considered a what?
striated involuntary muscle
In what order does the impulse for depolarization travel through the heart?
SA node, AV node, bundle of His, Purkinje fibers
A pregnant queen has what kind of placentation?
zonary
The control of color changes in the pigment cells of reptiles, fish, and amphibians is associated with which hormone?
MSH
The wave on an electrocardiogram that is associated with the atrial wall depolarization is the what?
P wave
The SA node is located in the wall of which chamber?
right atrium
The muscular sphincter located between the stomach and the duodenum is the what?
pylorus
The type of cell responsible for the transmission of impulses through the nervous system is the what?
neuron
Dogs demonstrate what type of estrous cycle?
diestous
What system is 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 intestine, are influenced by the what?
autonomic nervous system
The cranial nerves and the spinal nerves are anatomically part of what system?
peripheral nervous system
Sensory nerves are considered what?
afferent nerves
When a stimulus is strong enough to cause complete depolarization, it has reached what?
threshold
What happens within the neuron that allows local anesthetic to be effective?
sodium channels become blocked
Smooth muscles can be found where?
stomach
Which muscle cells have single nuclei?
smooth and cardiac
Cattle and swine display what type of serous cycle?
polyestrous
What species is an induced ovulator?
feline