D. The stomach wall, uterus, urinary bladder, intestine, and ciliary body all have smooth muscle.
The pressure in the systemic arteries during ventricular contraction is
C. Diastoic blood presure is present when the ventricles are relaxed and therefore is a lower pressure than systolic blood pressure
The difference between the systolic and diastolic pressures of the expanding and contracting arterial walls is the
D. stronger palpated pulse is due to a greater pulse pressure
Input from what system causes vasoconstriction during exercise and therefore an increase in blood pressure?
A. Exercise increases blood pressure because of vasoconstriction
Cardiac muscle is
A.
In what order does the impulse for depolarization travel through the heart?
D.
The wav eon an electrocardiogram that is associated with the atrial wall depolarization is the
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.
The SA node is located in the wall of which chamber
A. The SA node is the heart's dominant pacemaker
The muscular sphincter located between the stomach and duodenum
C. 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
The type of cell responsible for the transmission of impulse through the nervous system is the
C. 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
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
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
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
sensory nerves are considered
a. efferent motor nerves
b. motor nerves
c. efferent nerves
d. afferent nerves
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
when a stimulus is strong enough to cause complete depolarization, it has reached
a. threshold
b. repolarization
c. refactory period
d. action potential
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
smooth muscle can be found in the
a. heart
b. stomach
c. pelvic limb
d. diaphragm
which muscle cells have single nuclei
a. skeletal and cardiac
b. skeletal and smooth
c. smooth and cardiac
d. skeletal only
cattle and swine display what type of estrous cycle
a. polyestrous
b. seasonally polyestrous
c. diestrous
d. monoestrous
dogs demonstrate what type of estrous cycle
a. polyestrous
b. seasonally polyestrous
c. diestrous
d. monoestrous
What species is an induced ovulator
a. bovine
b. equine
c. canine
d. feline
in what stafe of the estrous cycle does the corpus luteum develop
a. proestrus
b. estrus
c. metestrus
d. diestrus
the hormone produced by a developing ovarian follicle is
a. estrogen
b. progesterone
c. prolactin
d. oxytocin
What hormone contracts the female reproductive tract to help move spermatozoa into the oviducts
a. estrogen
b. progesterone
c. prolactin
d. oxytocin
To achieve a normal pregnancy, the blastocyst attaches to what structure
a. endometrium
b.
