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Where are striated muscles located?
A. Urinary bladder
B. Ciliary body of the eye
C. Stomah wall and Uterus
D. Heart and skeletal muscles
D. The stomach wall, uterus, urinary bladder, intestine, and ciliary body all have smooth muscle. (this multiple choice question has been scrambled)
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The pressure in the systemic arteries during ventricular contraction is
A. Systolic blood pressure
B. Low pressure
C. Osmotic Pressure
D. Diastolic Blood Pressure
A. Diastoic blood presure is present when the ventricles are relaxed and therefore is a lower pressure than systolic blood pressure (this multiple choice question has been scrambled)
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The difference between the systolic and diastolic pressures of the expanding and contracting arterial walls is the
A. Osmotic pressure
B. Pulse
C. Stroke volume
D. End-systolic volume
B. stronger palpated pulse is due to a greater pulse pressure (this multiple choice question has been scrambled)
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Input from what system causes vasoconstriction during exercise and therefore an increase in blood pressure?
A. Sympathetic nervous system
B. Peripheral nervous system
C. Parasympathetic nervouse system
D. Central nervous system
A. Exercise increases blood pressure because of vasoconstriction (this multiple choice question has been scrambled)
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Cardiac muscle is
A. Nonstriated involuntary
B. Striated Involuntary
C. Nonstriated involuntary
D. Striated voluntary
B
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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, Purkinje fibers, bundle of HIS
C. SA node, AV node, Purkinje fibers, bundle of HIS
D. AV node, SA node, Purkinje fibers, bundle of HIS
B
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The wav eon an electrocardiogram that is associated with the atrial wall depolarization is the
A. P wave
B. QRS complex
C. PR interval
D. T wave
A. PR interval is the length of time for the impulse to travel through the AV node. T wave is ventricular repolarization, and the QRS complex is ventricular depolarization. (this multiple choice question has been scrambled)
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The SA node is located in the wall of which chamber
A. left atrium
B. right atrium
C. left ventricle
D. right ventricle
B. The SA node is the heart's dominant pacemaker (this multiple choice question has been scrambled)
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The muscular sphincter located between the stomach and duodenum
A. rugae
B. chyme
C. cardia
D. pylorus
D. the cardia is the sphincter between the esophagus and stomach, chyme is the digested stomach content that moves through the pylores, rugae are long folds found in the stomach (this multiple choice question has been scrambled)
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The type of cell responsible for the transmission of impulse through the nervous system is the
A. neuroglia
B. oligodendrocyte
C. schwann
D. neuron
D. neuroglia protect and support the nervous system. schwann cells are specialized glial cells in the peripheral nerves. oligodendrocytes are specialized glial cells in the brain and spinal cord (this multiple choice question has been scrambled)
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What system is anatomicall composed of the brain and spinal cord.
a. central nervous system
b. peripheral nervous system
c. parasympathetic nervous system
d. sympathetic nervous system
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Functions that an animal does not have to consciously control, such as peristalsis in the intestine, are influenced by the
a. somatic nervous system
b. central nervous system
c. peripheral nervous system
d. autonomic nervous system
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The cranial nerves and the spinal nerves are anatomicall part of what system
a. central nervous system
b. peripheral nervous system
c. parasympathetic nervous system
d. sympathetic nervous system
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sensory nerves are considered
a. efferent motor nerves
b. motor nerves
c. efferent nerves
d. afferent nerves
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An imbalance of what minerals can affect nerve function
a. phsosphorus and magnesium
b. sodium and potassium
c. manganese and chromium
d. iron and zinc
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when a stimulus is strong enough to cause complete depolarization, it has reached
a. threshold
b. repolarization
c. refactory period
d. action potential
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what happens within the neurons that allows local anesthetics to be effective
a. potassium gates open
b. the charge within the cell becomes positive
c. the charge within the cell becomes negative
d. sodium channels become blocked
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smooth muscle can be found in the
a. heart
b. stomach
c. pelvic limb
d. diaphragm
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which muscle cells have single nuclei
a. skeletal and cardiac
b. skeletal and smooth
c. smooth and cardiac
d. skeletal only
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cattle and swine display what type of estrous cycle
a. polyestrous
b. seasonally polyestrous
c. diestrous
d. monoestrous
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dogs demonstrate what type of estrous cycle
a. polyestrous
b. seasonally polyestrous
c. diestrous
d. monoestrous
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What species is an induced ovulator
a. bovine
b. equine
c. canine
d. feline
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in what stafe of the estrous cycle does the corpus luteum develop
a. proestrus
b. estrus
c. metestrus
d. diestrus
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the hormone produced by a developing ovarian follicle is
a. estrogen
b. progesterone
c. prolactin
d. oxytocin
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What hormone contracts the female reproductive tract to help move spermatozoa into the oviducts
a. estrogen
b. progesterone
c. prolactin
d. oxytocin
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To achieve a normal pregnancy, the blastocyst attaches to what structure
a. endometrium
b.
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