| Axilla | |
|---|---|
 | |
| Underarm of a male human | |
 | |
| Deep muscles of the chest and front of the arm, with the boundaries of the axilla. | |
| Latin | axilla |
| Gray's | subject #149 585 |
| Artery | axillary artery |
| Vein | axillary vein |
| Nerve | axillary nerve, medial cord, posterior cord, lateral cord |
| Lymph | axillary lymph nodes |
| MeSH | Axilla |
| Dorlands/Elsevier | a_76/12171908 |
The axilla (or armpit, underarm, or oxter) is the area on the human body directly under the joint where the arm connects to the shoulder. Latin ( lingua Latīna, laˈtiːna is an Italic language, historically spoken in Latium and Ancient Rome. Arteries are Blood vessels that carry blood away from the Heart. In Human anatomy, the axillary artery is a large Blood vessel that conveys oxygenated Blood to the lateral aspect of the Thorax, the Axilla In the Circulatory system, a vein is a Blood vessel that carries Blood back toward the Heart (as opposed to Artery, a blood vessel In Human anatomy, the axillary vein is a large Blood vessel that conveys Blood from the lateral aspect of the Thorax, Axilla A nerve is an enclosed cable-like bundle of peripheral Axons (the long slender projections of Neurons. The axillary nerve is a Nerve of the human body that comes off the Posterior cord of the Brachial plexus at the level of the Axilla (armpit The Medial cord is a division of the Brachial plexus. The medial cord gives rise to the following nerves The Median pectoral nerve, C8 and T1 to The posterior cord is a division of the Brachial plexus. It consists of contributions from all of the roots of the brachial plexus The Lateral cord is a division of the Brachial plexus. The lateral cord gives rise to the following nerves The Lateral pectoral nerve, C5 C6 and C7 The lymphatic system in Vertebrates is a network of conduits that carry a clear fluid called Lymph. The Axillary lymph nodes are of large size vary from twenty to thirty in number and may be arranged in the following groups Brachial lymph nodes (or "lateral" Medical Subject Headings ( MeSH) is a huge Controlled vocabulary (or metadata system for the purpose of indexing journal articles and books Elsevier, the world's largest Publisher of Medical and Scientific literature, forms part of the Reed Elsevier group In Anatomy, an arm is one of the Upper limbs of an animal The term arm can also be used for analogous structures such as one of the paired upper limbs In Human anatomy, the shoulder joint comprises the part of the body where the Humerus attaches to the Scapula.
Contents |
Boundaries
Anatomically, the boundaries are as follows:
| inlet/apex: by the outer border of first rib, superior border of scapula, and posterior border of clavicle[1] | ||
| medially: serratus anterior [2] and by the ribcage | anteriorly: by the pectoralis major, minor,[3] and subclavius [2] (see also anterior axillary fold) posteriorly: by the subscapularis above, and teres major and latissimus dorsi below[2] (see also posterior axillary fold) | laterally: by the intertubercular sulcus [3] (coracobrachialis and the short head of the biceps brachii are in the axilla. The first rib is the most curved and usually the shortest of all the Ribs; it is broad and flat its surfaces looking upward and downward and its borders inward and outward In Anatomy, the scapula, omo, or shoulder blade, is the Bone that connects the Humerus (arm bone with the Clavicle (collar The serratus anterior is a muscle that originates on the surface of the upper eight ribs at the side of the chest and inserts along the entire anterior length of the medial border of the In Vertebrate Anatomy, ribs ( Latin costae) are the long curved Bones which form the ribcage. The Pectoralis major (popularly known as pecs) is a thick fan-shaped muscle situated at the upper front ( Anterior) of the Chest wall The Pectoralis minor is a thin triangular muscle situated at the upper part of the Chest, beneath the Pectoralis major. The Subclavius is a small triangular muscle placed between the Clavicle and the First rib. The lower border of Pectoralis major forms the rounded anterior axillary fold. The Subscapularis is a large triangular muscle which fills the Subscapular fossa. Teres major is a muscle of the Upper limb and one of six scapulohumeral muscles The latissimus dorsi (plural latissimi dorsi is the large flat dorso-lateral muscle on the trunk posterior to the arm and partly covered by the Trapezius on its median The posterior axillary fold is a compound structure consisting of the Latissimus dorsi and Teres major muscles The tubercles of the Humerus are separated from each other by a deep groove the intertubercular groove ( bicipital groove, sulcus intertubercular) which The Coracobrachialis is the smallest of the three muscles that attach to the Coracoid process of the Scapula. In Human anatomy, the biceps brachii is a Muscle located on the upper Arm. )[2] |
| floor/base: by the skin[1] (visible surface of armpit) |
The contents of the axilla include the axillary vein and artery, as well as the brachial plexus, lymph nodes and fat.
Medical significance
The axilla is one of the four sites (the other three being the mouth, rectum, and ear canal) in which a medical thermometer may be inserted in order to measure body temperature. Medical thermometers are used for measuring human Body temperature, with the tip of the thermometer being inserted either into the mouth ( oral temperature
Underarm hair
Underarm hair usually grows in the underarms of both females and males, beginning in adolescence. Underarm Hair (also called axillary hair or armpit hair) is the composition of Hair in the Underarm area Underarm Hair (also called axillary hair or armpit hair) is the composition of Hair in the Underarm area Female (♀ is the Sex of an Organism, or a part of an organism which produces ova (egg cells Male (♂ refers to the sex of an organism or part of an organism which produces small mobile Gametes called spermatozoa.
In modern Western culture, it is common for women to remove underarm hair for aesthetic reasons, while men tend to keep it. Western culture (sometimes equated with Western Civilization) are terms which are used to refer to Cultures of European origin Aesthetics or esthetics ( also spelled æsthetics) is commonly known as the study of sensory or sensori-emotional values sometimes called Throughout the feminist movement, previously in the hippie culture, and in some areas of the punk rock scene, some women choose to keep their underarm hair for a variety of reasons, from subversion to egalitarianism to comfort. Feminism is a discourse that involves various movements theories, and Philosophies which are concerned with the issue of Gender difference, advocate The Hippie Subculture was originally a Youth movement that began in the United States during the early 1960s and spread around the world
Body odor
Body odor develops in the underarms due in part to the waste products of microorganisms that feed on sebum, the fatty secretions produced by apocrine glands. Body odor (spelled body odour outside the United States often abbreviated as B A microorganism (also spelled micro organism or micro-organism and also called a microbe) is an Organism that is Microscopic (usually The sebaceous glands are Glands found in the Skin of Mammals Locations and morphology A branched type of Acinar gland, these
A wide variety of deodorant and antiperspirant products are sold for the purpose of mitigating this odor. Deodorants are substances applied to the body particularly the Armpits mainly to reduce Body odor caused by the bacterial breakdown of Perspiration.
Cultural significance
The underarms are among the locations in the human body which are most vulnerable to tickling. Tickling is the act of touching a part of the body so as to cause involuntary twitching movements or Laughter.
The sexual attraction to the underarms is called axillism. Non-penetrative sex (also known as outercourse and dry sex) is Sexual activity without Vaginal Anal, and Oral penetration
Terminology
The term oxter, pronounced 'ock-ster' is most often used in Scotland,[4] northern England, and Ireland. Scotland ( Gaelic: Alba) is a Country in northwest Europethat occupies the northern third of the island of Great Britain. England is a Country which is part of the United Kingdom. Its inhabitants account for more than 83% of the total UK population whilst its mainland Ireland (pronounced /ˈaɾlənd/ Éire) is the third largest island in Europe, and the twentieth-largest island in the world Northern Ireland generally replaces all other names of underarm for oxter.
The term "underarm" only refers to the outer surface of the axilla. [5] However, the terms are sometimes used interchangeably in casual contexts.
Colloquially, armpit refers to an object or place which is smelly, greasy or otherwise undesirable. [6]
Additional images
 Superficial muscles of the chest and front of the arm. |  Axillary artery and its branches - anterior view of right upper limb and thorax. |  The veins of the right axilla, viewed from in front. |  The right brachial plexus (infraclavicular portion) in the axillary fossa; viewed from below and in front. |
 The left side of the thorax. |
References
- ^ a b Anaesthesia UK :�AnaesthesiaUK: Applied anatomy for upper limb blocks. Retrieved on 2007-12-23. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 962 - Byzantine-Arab Wars: Under the future Emperor Nicephorus Phocas, Byzantine troops stormed the city
- ^ a b c d LAB #4 PECTORAL REGION & Introduction to the Axilla. Retrieved on 2007-12-23. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 962 - Byzantine-Arab Wars: Under the future Emperor Nicephorus Phocas, Byzantine troops stormed the city
- ^ a b Dissector Answers - Axilla and Arm. Retrieved on 2007-12-23. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 962 - Byzantine-Arab Wars: Under the future Emperor Nicephorus Phocas, Byzantine troops stormed the city
- ^ BBC - Voices - Multilingual Nation. Retrieved on 2007-12-23. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 962 - Byzantine-Arab Wars: Under the future Emperor Nicephorus Phocas, Byzantine troops stormed the city
- ^ a_61/12152705 at Dorland's Medical Dictionary
- ^ Definition of armpit - Merriam-Webster Online Dictionary. Dorland's is the brand name of a family of medical reference works (including dictionaries, spellers word books and spell-check software) in various media (including Retrieved on 2007-12-23. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 962 - Byzantine-Arab Wars: Under the future Emperor Nicephorus Phocas, Byzantine troops stormed the city
External links
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