Correlate blood vessel histology to vessel type and function in hemostasis
What will be an ideal response?
Answer: Tunica adventitia: thick outer layer of the blood vessels responsible for maintaining blood pressure; is thicker in veins than in arteries
Tunica media: middle layer responsible for vasoconstriction and vasodilation; is thicker in arteries than in veins
Tunica intima: has direct interaction with peripheral blood constituents; all three types of vessels (arteries, veins, and capillaries) in close tunica intima layers
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For action potentials, the term "all-or-none" means:
a. All action potentials are the same b. Either all neurons depolarize or none of them do c. Neurons can have partial action potentials d. Some neurons have stronger action potentials than others
The father of a developmentally challenged 45-year-old male summoned EMS because his son was "not acting right." The patient is awake, but is nonverbal, which is not typical according the father. Your assessment reveals no abnormalities, and vital signs are normal. When calling the chief complaint into the hospital, you would state that the patient:
A) "Has an unknown chief complaint at this time." B) "Is awake and nonverbal." C) "Is not acting normally per his father." D) "Appears to be sick and not feeling well."
An AEMT is correctly assessing a patient's radial pulse when she:
A) uses her thumb to feel for the pulse on the patient's lower arm. B) simultaneously checks for a heart rate on both sides of the neck. C) uses her fingertips to feel for a pulse at the patient's wrist. D) uses the palm of his hand to feel the pulse on the upper arm.
,245 - ________ = 2,637
Fill in the blank with the appropriate word.