The axilla (pl.: axillae or axillas; also known as the armpit, underarm or oxter) is the area on the human body directly under the shoulder joint. It includes the axillary space, an anatomical space within the shoulder girdle between the arm and the thoracic cage, bounded superiorly by the imaginary plane between the superior borders of the first rib, clavicle and scapula (above which are considered part of the neck), medially by the serratus anterior muscle and thoracolumbar fascia, anteriorly by the pectoral muscles and posteriorly by the subscapularis, teres major and latissimus dorsi muscle.
The soft skin covering the lateral axilla contains many hair and sweat glands. In humans, the formation of body odor happens mostly in the axilla.[1] These odorant substances have been suggested by some to serve as pheromones, which play a role related to mate selection, although this is a controversial topic within the scientific community.[2] The underarms seem more important than the pubic area for emitting body odor, which may be related to human bipedalism.[3]
^Turkington, Carol; Dover, Jeffrey S. (2007). The encyclopedia of skin and skin disorders (3rd ed.). New York: Facts on File. p. 363. ISBN 978-0-8160-6403-8.
^Drea, Christine M. (February 2015). "D'scent of man: A comparative survey of primate chemosignaling in relation to sex". Hormones and Behavior. 68: 117–133. doi:10.1016/j.yhbeh.2014.08.001. PMID 25118943. S2CID 2973690.
^The Oxford Handbook of Evolutionary Psychology, Edited by Robin Dunbar and Louise Barret, Oxford University Press, 2007, Chapter 22 Body odours and body odour preferences in humans by Claus Wedekind
of the thorax. AxillaAxillaAxillaAxillaAxillaAxillaAxilla The term "underarm" typically refers to the outer surface of the axilla. However, the terms...
of axilla, or Gerdy's ligament, is a suspensory ligament that connects the clavipectoral fascia to the axillary fascia. This union shapes the axilla (underarm)...
known as axillary hair or armpit hair, is the hair in the underarm area (axilla). Underarm or axillary hair goes through four stages of development, driven...
infraclavicular nodes, below). Central group: Lying in the center of the axilla in the axillary fat, these nodes receive lymph from the above three groups...
quadrant of the breast traveling into the axilla. The "axillary tail" has been reported to pass into the axilla through an opening in the deep fascia called...
that conveys oxygenated blood to the lateral aspect of the thorax, the axilla (armpit) and the upper limb. Its origin is at the lateral margin of the...
the brain The arteries of the upper extremity The subclavian artery The axilla The axillary artery The brachial artery The radial artery The ulnar artery...
long thoracic nerve. It provides sensory innervation to the skin of the axilla, and a variable region of the medial side of the upper arm. The lateral...
following nerve branches: Posterior cutaneous nerve of arm (originates in axilla) Inferior lateral cutaneous nerve of arm (originates in arm) Posterior cutaneous...
axillary spaces are anatomic spaces. through which axillary contents leave the axilla. They consist of the quadrangular space, triangular space, and triangular...
pectoralis major and pectoralis minor, the subclavius muscle forms the axilla or armpit. The subclavius moves the shoulder downward and forward. Serratus...
Deep muscles of the chest and front of the arm, with the boundaries of the axilla. (Brachialis visible at bottom right.) Position of brachialis (shown in...
blood vessel that conveys blood from the lateral aspect of the thorax, axilla (armpit) and upper limb toward the heart. There is one axillary vein on...
upper with the middle third of the bone. It is the lateral wall of the axilla. The bicipital groove allows for the long tendon of the biceps brachii muscle...
quite long, and the expression doctors use is "chasing a dog ear" into the axilla (or underarm). A dog ear may occur when the skin at the edge or corner of...
Gaius Servilius Axilla (or Servilius Structus; fl. c. 427–417 BC) was a Roman aristocrat and statesman during the early Republic. He held the senior executive...
muscle and triceps brachii muscle. Brachial vein The veins of the right axilla, viewed from in front. lesson4veinsofarm at The Anatomy Lesson by Wesley...
Year of the Tribunate of Tricipitinus, Lanatus, Crassus (or Cicurinus) and Axilla (or, less frequently, year 337 Ab urbe condita). The denomination 417 BC...
areas may touch or rub together. Examples of intertriginous areas are the axilla of the arm, the anogenital region, skin folds of the breasts and between...
ligaments and skeletal muscles of the shoulder girdle, as well as the axilla between them, is considered parts of the upper limb, and thus also components...
clavicle, infraclavicular block below the clavicle and axillary block in the axilla (armpit). General anesthesia may result in low blood pressure, undesirable...
root form from which English nouns are generally derived. Contracted from axilla Contracted from ad and bet- Contracted from cernimen Contracted from figibula...
Arm Shoulder Axilla Elbow Forearm Wrist Hand Finger Fingernail Thumb Index Middle Ring Little Leg Buttocks Hip Thigh Knee Calf Foot Ankle Heel Toe Toenail...
The axillary nerve is sometimes damaged during surgical procedures of the axilla, such as for breast cancer. It may also be injured by anterior dislocation...
the anterior axioappendicular muscles, also known as anterior wall of the axilla. It arises by a short, thick tendon from the first rib and its cartilage...
arise from pressure on nerves in the armpit, or axilla. Specifically, "the brachial plexus in the axilla is often damaged from the pressure of a crutch...
Global Information