The microscopic modifications on the lumen surfaces of epithelial cells in the small intestine are known as ____.

a) villi
b) rugae
c) plica circularis
d) microvilli


Ans: d) microvilli

Anatomy & Physiology

You might also like to view...

The ability of a male to ejaculate is due to the action of ________.

A) parasympathetic nerves B) the dartos muscle C) luteinizing hormone D) the bulbospongiosus muscles

Anatomy & Physiology

Sensory information from the skeletal muscles enters the central nervous system by visceral efferent neurons

Indicate whether the statement is true or false

Anatomy & Physiology

What energizes the myosin head?

a) the actin filaments b) calcium ions c) potassium ions d) ATP hydrolysis reaction e) ADP synthesis

Anatomy & Physiology

The most immediate threat to the life of a patient with severe burns is ________.

A. pain B. eschar C. fluid loss D. infection E. heat loss

Anatomy & Physiology