A-band Quick reference
Part of a muscle sarcomere that comprises several thick myosin filaments held between thinner actin filaments. It appears as
ABCDE Quick reference
A mnemonic for a step-by-step assessment of an athlete who collapses on the field of play. A = Airway and
ABC of resuscitation Quick reference
A mnemonic (memory aid) for the initial management of a person who has collapsed (e.g. an athlete knocked unconscious on
abdomen Quick reference
Lower part of the trunk between the diaphragm and the pelvis containing soft body tissues, including the stomach, kidneys, liver,
abdominal Quick reference
Pertaining to the abdomen.
abdominal injury Quick reference
Physical damage to the abdomen and its contents. The abdomen is particularly vulnerable to blows during contact and collision sports.
abdominal muscles Quick reference
Four pairs of muscles (the rectus abdominis, external oblique, internal oblique, and the transversus abdominis), often referred to as the
abdominal rigidity Quick reference
An extreme tightness of the abdominal muscles detected when touching or pressing on the abdomen. A person's fear or nervousness
abduction Quick reference
Movement of a body segment (e.g. arm or leg) away from the midline of the body. The term also refers
abductor Quick reference
A muscle that moves a part of the body away from the midline, or spreads the fingers or toes apart.
abductor digiti minimi Quick reference
A muscle originating on the pisiform bone in the wrist and inserting onto the ulnar base of the proximal phalanx
abductor pollicis brevis Quick reference
A small muscle crossing the wrist. It helps to straighten the thumb and move the thumb away from the fingers.
abductor pollicis longus Quick reference
A muscle deep in the forearm. It helps to move the forearm sideways from the trunk. Its other actions include