During fasting, some capillary beds in the digestive tract are closed and therefore have no blood flow. Others are open to meet the minimal need of the tract for blood flow. During eating and as long as food is present in the tract, all capillary beds open to flow. What happens to total cross-sectional area of vessels in the digestive tract?
What will be an ideal response?
increased
Anatomy & Physiology
You might also like to view...
The first set of teeth to appear are the ________ teeth.
A) permanent B) succession C) secondary D) impacted E) deciduous
Anatomy & Physiology
Which is not a function of the integument?
A. Protection B. Water loss prevention C. Temperature regulation D. Synthesis of cholecalciferol (vitamin D precursor) E. No exceptions; all are functions of the integument
Anatomy & Physiology
The ________ is a bone that forms the inferior portion of the nasal septum and articulates with both the maxillae and palatines along the midline.
Fill in the blank(s) with the appropriate word(s).
Anatomy & Physiology
Histology is the study of
A) organ function. B) cells. C) molecules. D) tissues.
Anatomy & Physiology