Possible points for measuring the heart rate are: 1  The ventral aspect of the wrist on the side of the thumb (radial artery). 2  The ulnar artery. 3  The neck (carotid artery). 4  The inside of the elbow, or under the biceps muscle (brachial artery). 5  The groin (femoral artery). 6  Behind the medial malleolus on the feet (posterior tibial artery).
HIV is a member of the genus Lentivirus, part of the family Retroviridae. Lentiviruses have many morphologies and biological properties in common. Many species are infected by lentiviruses, which are characteristically responsible for long-duration illnesses with a long incubation period.
1 Currently, HIV-1 is the predominant subtype that causes HIV/AIDS. 2  AIDS stands for the acquired immunodeficiency syndrome. 3  HIV causes AIDS and occurs when the virus has destroyed so much of the body's defenses that immune-cell counts fall to critical levels or certain life-threatening infections or cancers develop.n order to understand HIV and acquired immunodeficiency syndrome (AIDS), it is important to understand the meanings behind these terms and the difference between them: 1  HIV stands for the human immunodeficiency virus. 2  It is one of a group of viruses known as retroviruses.