Basophils of the blood help to get defensive leukocytes to the site quickly by releasing an anticoagulant called ________ and a vasodilator called ________.
A. heparin; histamine
B. bradykinin; histamine
C. selectin; prostaglandin
D. prostaglandins; selectin
E. histamine; heparin
Answer: A
Anatomy & Physiology
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The _____ sends out an electrical impulse that begins and regulates the heartbeat.?
A) ?AV node B) ?SA node C) ?Purkinje fibers D) ?AV bundle
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The principal male sex steroid hormone is ____________________
Fill in the blank(s) with correct word
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What occurs during the time between the first heart sound and the second heart sound?
A. ventricular systole
B. ventricular diastole
C. ventricular filling
D. atrial systole
E. the P wave of the ECG
Anatomy & Physiology
The simplest and most common type of sensory nerve endings are free nerve endings
Indicate whether the statement is true or false.
Anatomy & Physiology