Which gland secretes substances through ducts?

a. endocrine gland
b. exocrine gland
c. islets of langerhans
d. pituitary gland

the ecg findings of an acute anterior myocardial infarction wall include: st segment elevation in the anterior leads (v3 and v4) at the j point and sometimes in the septal or lateral leads, depending on the extent of the mi. this st segment elevation is concave downward and frequently overwhelms the t wave.

explanation:

mayo clinic in rochester, minnesota;