The function of Langerhans cells in the dermal layer is to: A) increase blood circulation to the skin.
B) reduce heat loss of the skin.
C) reduce water loss of the skin.
D) increase the immune response of the skin.

D.) on edge

Explanation:

I just took the test

b is the correct answer

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.