Anatomical Terms – Letter A


Abduction: the action of moving a limb away from the mid line of the body.
Adduction: the action of moving a limb toward the mid line of the body.
Acute: Symptoms that are brief and severe in nature and duration.
Anterior: the frontal aspect.
Anterior Cruciate Ligament: ligament within the knee that prevent excessive frontal movement of the tibia in relation to the femur, it also limits to a lesser extent rotational movement of the knee.
Atrophy: a wasting away or shrinking of tissue within the body, usually is used when talking about skeletal muscle.
Avulsion: tearing apart of a structure.
Acromio Clavicular Joint (AC Joint): The joint between the clavical (collar bone) and the scapula (shoulder blade).
Acromion: also referred to as the acromion process of the scapula.  it comes off the top of the scapula and attaches to the clavical and makes up part of the acromio clavicular joint, and it is also an attachment point for skeletal muscles.
Amino Acids: Building blocks of all proteins, and there are 20 amino acids in total.
Anemia: insufficient amount of red blood cells or the red blood cells are malformed and cannot carry oxygen properly resulting in not enough oxygen reaching the tissues of the body.
Anaerobic: basically means without oxygen.  in sports it is used to describe activity in which the body produces energy without the use of oxygen such as with ATP.
Aerobic: basically means oxygen requiring.  So aerobic exercise or sports are ones that you use oxygen to produce energy, and these tend to be slower and lower intensity activities.
Apical Pulse: when a stethoscope is used to listen to the apex of the heart to get the pulse.  The apical pulse is taken between the 4th & 5th ribs on the mid clavicular line just below the nipple.

Anatomical Terms


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