Bottom or lower edge of the heart

A) mensuration
B) calibrating
C) body mass index (BMI)
D) vital signs
E) pyrogens
F) subnormal
G) scanning
H) palpating
I) auscultating
J) apex

Auscultating

The act of listening to the internal sounds of the body, typically using a stethoscope, as part of a medical examination.

Palpating

The act of examining a part of the body by touch, especially for medical purposes, to detect conditions or characteristics.

Scanning

The act of examining something closely, often using a machine or electronic device to detect a specific feature or to gather information.