Which of the following electrocardiogram (EKG) waves represents atrial depolarization?
a) R wave
b) T wave
c) S wave
d) P wave
e) Q wave
d
Anatomy & Physiology
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Vertebrate blood vessels have complex walls. The smooth muscle of the __________ layer of the blood vessel causes vasoconstriction
Fill in the blank with the correct word.
Anatomy & Physiology
Duodenal glands (Brunner glands) that secrete a viscous mucus into the small intestine are located in the
A. serosa. B. adventitia. C. muscularis interna. D. mucosa. E. submucosa.
Anatomy & Physiology
The most common type of neuron in the human body is:
A) unipolar. B) bipolar. C) pseudounipolar. D) multipolar.
Anatomy & Physiology
What unique feature is present only on the thoracic vertebrae?
A) transverse foramina B) dens (odontoid process) C) superior and inferior costal facets D) vertebral foramina
Anatomy & Physiology