Test answers – Flashcards
Unlock all answers in this set
Unlock answersquestion
Pacinian corpuscle
answer
Which of the following is not a cell type found in the retina?
question
Adrenal medulla
answer
A patient has symptoms of high blood pressure, elevated heart rate, due to excess epinephrine via tumor. Where would this tumor be located?
question
Pain
answer
What is the stimulus for nociceptors?
question
Right frontal lobe
answer
A brain tumor patient has a problem with moving her left arm. Where might you expect this brain tumor to be located?
question
Oligodendrocyte
answer
What type of cells form a myelin sheath around axons in the CNS?
question
Chloride
answer
The opening of ________ channels decreases the likelihood of an action potentials?
question
ampulla cupula
answer
Located within the ________ of the semicircular canal, a gelatinous structure called the _________ surrounds the cell
question
-70
answer
Typical resting membrane potential for a neuron is ________ mV
question
-55
answer
Threshold for action potential in a neuron is _____ mV
question
True
answer
Coding for stimulus intensity is signaled by AP frequency
question
False
answer
Mechanoreceptor fields are largest at the most sensitive areas such as the lips and hands
question
True
answer
Lipophilic hormone may be temporarily stored in adipose tissue
question
False
answer
Synaptic delay is due to the time it takes for neurotransmitters to diffuse across the synaptic cleft
question
False
answer
Voltage-gated channels are most abundant at the dendrites of a postsynaptic cell
question
False
answer
Taste receptor cells are only located on the tongue
question
True
answer
The posterior pituitary is comprised of axon terminals from the hypothalamus
question
Commissures
answer
What is the term for the bundles of axons that connect the left and right side of the brain?
question
Astrocytes
answer
What type of glial cell is necessary for normal development of the blood-brain barrier?
question
Ventricles
answer
Chambers in the brain that contain CSF
question
Refractory
answer
The ____________ period is reduced membrane excitability after an action potential
question
Bilirubin
answer
Metabolite of hemoglobin that imparts the yellowish tinge found in plasma and the skin if a person has jaundice
question
Acetylcholine
answer
Neurotransmitter released from motor neurons
question
Vascular spasm
answer
What is the first step of hemostasis
question
Arterioles
answer
Resistance to blood flow is regulated by which blood vessels?
question
ADH
answer
What hormone does not contribute to smooth muscle vasodilation in arterioles?
question
Macrophages
answer
Foreign materials are filtered out of the lymphatic system by
question
Coronary arteries
answer
Blood supply to the heart comes from
question
fibrin
answer
What molecule forms the meshwork in a blood clot
question
bone marrow
answer
Hematopoietic stem cells are found in:
question
vasodilation
answer
Nitric oxide causes _____________
question
high
answer
Veins function as volume reservoirs due to their ________ compliance
question
blood pressure
answer
Which of the following factors do not contribute to vascular resistance?
question
von Willebrand factor
answer
Formation of a platelet plug is initiated by _____
question
Megakaryocytes
answer
What type of cell is the precursor for platelets?
question
True
answer
The lymphatic system is an open circulatory system
question
False
answer
The end plate potential does not always depolarize the muscle cell to the threshold value required to initiate an action potential
question
False
answer
TOF: The opening and closure of the atrioventricular and semilunar valves is driven by the contraction of papillary muscles
question
False
answer
TOF: CO2 causes the relaxation of metarteriole sphincters
question
True
answer
TOF: Release of ADP by platelets is part of a positive feedback loop to increase platelet stickiness and aggregation
question
False
answer
TOF: A decrease in blood pressure within an arteriole will initiate a myogenic vasoconstriction response to maintain a constant rate of blood flow
question
ganglion
answer
A ________ is a cluster of cell bodies in the peripheral nervous system
question
Medullary osmotic gradient
answer
Urea is responsible for regulation:
