ANATOMY

Detailed explanation-1: -The brachial artery is the main vessel supplying blood to the muscles in your upper arm and elbow joint. It’s often used to measure your blood pressure. The brachial artery is near the surface of your skin, so it’s susceptible to damage from traumatic injuries like arm fractures.

Detailed explanation-2: -The brachial artery is the extension of the axillary artery starting at the lower margin of the teres major muscle and is the major artery of the upper extremity. The brachial artery courses along the ventral surface of the arm and gives rise to multiple smaller branching arteries before reaching the cubital fossa.

Detailed explanation-3: -The blood pressure cuff is placed on the subject’s right arm, allowing 1 inch between the bottom of the cuff and the crease of the elbow. The brachial pulse is palpated just above the angle of the elbow (the “antecubital fossa").

Detailed explanation-4: -Locate the brachial or radial pulse. Palpate the artery distal to the cuff with the fingertips of the nondominant hand while inflating the cuff rapidly to a pressure above the point at which the pulse disappears. Slowly deflate the cuff and observe the point when the pulse reappears. Deflate the cuff fully.

Detailed explanation-5: -Radial intra-arterial blood pressure (BP) is sometimes used as the reference standard for validation of brachial cuff BP devices. Moreover, there is an emerging wearables market seeking to measure BP at the wrist.