What is the second heart sound associated with?

a. opening of the semilunar valves
b. closure of the semilunar valves
c. opening of the AV valves
d. closing of the AV valves
e. firing of the SA node


b

Anatomy & Physiology

You might also like to view...

A sphygmomanometer measures

A) blood pressure. B) hematocrit. C) brain function. D) clotting time.

Anatomy & Physiology

Answer the following questions true (T) or false (F)

1. In the vertebral column, there are 7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, 5 fused sacral vertebrae, and 3-5 fused coccygeal vertebra to make an average total of 33 vertebrae in an older adult. 2. Thoracic vertebrae have holes in their transverse processes known as transverse foramina for the passage of blood vessels. 3. Ribs 8-12 are considered false ribs because they do not directly attach to the sternum by their own cartilage. Instead, the costal cartilage of ribs 8-10 attach to the cartilage of the seventh rib.

Anatomy & Physiology

Why is breast milk superior to cow's milk for an infant?

A. Cow's milk provides less calcium per mL. B. Cow's milk has too much protein and minerals in it. C. Cow's milk provides fewer calories per mL. D. Cow's milk provides less phosphorous per mL. E. It is a myth; cow's milk is equal in quality to breast milk.

Anatomy & Physiology

Julisa won a lottery ticket and began to hyperventilate in her excitement. Explain how hyperventilation affects the partial pressure of carbon dioxide in her blood and her blood pH

What will be an ideal response?

Anatomy & Physiology