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