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Fossa (anatomy)
In anatomy, a fossa (; plural ''fossae'' ( or ); from Latin ''fossa'', "ditch" or "trench") is a depression or hollow, usually in a bone, such as the hypophyseal fossa (the depression in the sphenoid bone).Venieratos D, Anagnostopoulou S, Garidou A., A new morphometric method for the sella turcica and the hypophyseal fossa and its clinical relevance.;Folia Morphol (Warsz). 2005 Nov;64(4):240-7. Some examples include: In the Skull: * Cranial fossa ** Anterior cranial fossa ** Middle cranial fossa *** Interpeduncular fossa ** Posterior cranial fossa * Hypophyseal fossa * Temporal bone fossa ** Mandibular fossa ** Jugular fossa * Infratemporal fossa * Pterygopalatine fossa * Pterygoid fossa * Lacrimal fossa ** Fossa for lacrimal gland ** Fossa for lacrimal sac * Mandibular fossa * Scaphoid fossa * Jugular fossa * Condyloid fossa * Rhomboid fossa In the Mandible: * Retromolar fossa In the Torso: * Fossa ovalis (heart) * Infraclavicular fossa *Pyriform fossa * Substernal fossa * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anatomy
Anatomy () is the branch of biology concerned with the study of the structure of organisms and their parts. Anatomy is a branch of natural science that deals with the structural organization of living things. It is an old science, having its beginnings in prehistoric times. Anatomy is inherently tied to developmental biology, embryology, comparative anatomy, evolutionary biology, and phylogeny, as these are the processes by which anatomy is generated, both over immediate and long-term timescales. Anatomy and physiology, which study the structure and function (biology), function of organisms and their parts respectively, make a natural pair of related disciplines, and are often studied together. Human anatomy is one of the essential basic research, basic sciences that are applied in medicine. The discipline of anatomy is divided into macroscopic scale, macroscopic and microscopic scale, microscopic. Gross anatomy, Macroscopic anatomy, or gross anatomy, is the examination of an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossa For Lacrimal Sac
A smooth, more deeply concave depression on the lacrimal bone, which forms the medial wall of the orbital cavity, in which the lacrimal sac that drains into the nasolacrimal duct is located, is referred to as the lacrimal fossa (or fossa for the lacrimal sac). See also * Fossa for lacrimal gland The lacrimal fossa (or fossa for lacrimal gland) is located on the inferior surface of each orbital plate of the frontal bone. It is smooth and concave, and presents, laterally, underneath the zygomatic process, a shallow depression for the lacrim ... References Bones of the head and neck {{musculoskeletal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paravesical Fossa
The peritoneum of the anterior pelvic wall The pelvic cavity is a body cavity that is bounded by the bones of the pelvis. Its oblique roof is the pelvic inlet (the superior opening of the pelvis). Its lower boundary is the pelvic floor. The pelvic cavity primarily contains the reproducti ... covers the superior surface of the bladder, and on either side of this viscus forms a depression, termed the paravesical fossa, which is limited laterally by the fold of peritoneum covering the ductus deferens. The size of this fossa is dependent on the state of distension of the bladder; when the bladder is empty, a variable fold of peritoneum, the ''plica vesicalis transversa'', divides the fossa into two portions. External links * - "The Female Pelvis: Distribution of the Peritoneum in the Female Pelvis" References Pelvis {{Anatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ovarian Fossa
The ovarian fossa is a shallow depression on the lateral wall of the pelvis, where in the ovary lies. This ovarian fossa has the following boundaries: * superiorly: by the external iliac artery and vein * anteriorly and inferiorly: by the broad ligament of the uterus * posteriorly: by the ureter, internal iliac artery and vein * inferiorly: by the obturator nerve, artery and vein Veins are blood vessels in humans and most other animals that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated b ... References External links Diagram at aafp.org Mammal female reproductive system {{genitourinary-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iliac Fossa
The iliac fossa is a large, smooth, concave surface on the internal surface of the Ilium (bone), ilium (part of the three fused bones making the hip bone). Structure The iliac fossa is bounded above by the iliac crest, and below by the Arcuate line (ilium), arcuate line. It is bordered in front and behind by the anterior and posterior borders of the Ilium (bone), ilium. The iliac fossa gives origin to the iliacus muscle. The obturator nerve passes around the iliac fossa. It is perforated at its inner part by a nutrient canal. Below it there is a smooth, rounded border, the arcuate line (ilium), arcuate line, which runs anterior, inferior, and medial. When the "left" or "right" adjective is used (e.g "right iliac fossa"), the iliac fossa usually means one of the groin, inguinal regions of the Quadrants and regions of abdomen, nine regions of the abdomen. Additional images File:Anterior Hip Muscles 2.PNG, The iliacus and nearby muscles File:Slide5AA.JPG, Iliac fossa File:Slid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xiphoid Process
The xiphoid process , or xiphisternum or metasternum, is a small cartilaginous process (extension) of the inferior (lower) part of the sternum, which is usually ossified in the adult human. It may also be referred to as the ensiform process. Both the Greek-derived ''xiphoid'' and its Latin equivalent ''ensiform'' mean 'swordlike' or 'sword-shaped' Structure The xiphoid process is considered to be at the level of the 9th thoracic vertebra and the T7 dermatome. Development In newborns and young (especially small) infants, the tip of the xiphoid process may be both seen and felt as a lump just below the sternal notch. At 15 to 29 years old, the xiphoid usually fuses to the body of the sternum with a fibrous joint. Unlike the synovial articulation of major joints, this is non-movable. Ossification of the xiphoid process occurs around age 40. Variation The xiphoid process can be naturally bifurcated or sometimes perforated (xiphoidal foramen). These variances in morphology are inher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyriform Fossa
On either side of the laryngeal orifice in humans is a recess, termed the pyriform sinus (also piriform recess, piriform sinus, piriform fossa, or smuggler's fossa), which is bounded medially by the aryepiglottic fold, laterally by the thyroid cartilage and thyrohyoid membrane. The fossae are involved in speech. The term "pyriform," which means "pear-shaped," is also sometimes spelled "piriform". Deep to the mucous membrane of the pyriform fossa lie the recurrent laryngeal nerve as well as the internal laryngeal nerve, a branch of the superior laryngeal nerve. The internal laryngeal nerve supplies sensation to the area, and it may become damaged if the mucous membrane is inadvertently punctured. Found in laryngopharynx easily The pyriform sinus is a subsite of the hypopharynx. This distinction is important for head and neck cancer staging and treatment.AJCC Cancer Staging Handbook: From the AJCC Cancer Staging Manual, Sixth Edition. Ed. Frederick L. Greene, M.D. page 48. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infraclavicular Fossa
The Infraclavicular fossa is an indentation, or fossa, immediately below the clavicle, above the third rib and between the deltoid muscle laterally and medioclavicular line medially. See also * Supraclavicular fossa The Supraclavicular fossa is an indentation (fossa) immediately above the clavicle. In terminologia anatomica, it is divided into ''fossa supraclavicularis major'' and ''fossa supraclavicularis minor'' Fullness in the supraclavicular fossa can be ... References Thorax (human anatomy) {{anatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossa Ovalis (heart)
The ''fossa ovalis'' is a depression in the right atrium of the heart, at the level of the interatrial septum, the wall between right and left atrium. The ''fossa ovalis'' is the remnant of a thin fibrous sheet that covered the '' foramen ovale'' during fetal development. Function During fetal development, the foramen ovale allows blood to pass from the right atrium to the left atrium, bypassing the nonfunctional fetal lungs while the fetus obtains its oxygen from the placenta. A flap of tissue called the septum primum acts as a valve over the foramen ovale during that time. After birth, the introduction of air into the lungs causes the pressure in the pulmonary circulatory system to drop. This change in pressure pushes the septum primum against the atrial septum, closing the foramen. The septum primum and atrial septum eventually fuse together to form a complete seal, leaving a depression called the fossa ovalis. By age two, about 75% of people have a completely sealed fossa ova ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torso
The torso or trunk is an anatomical term for the central part, or the core, of the body of many animals (including humans), from which the head, neck, limbs, tail and other appendages extend. The tetrapod torso — including that of a human — is usually divided into the ''thoracic'' segment (also known as the upper torso, where the forelimbs extend), the ''abdominal'' segment (also known as the "mid-section" or "midriff"), and the ''pelvic'' and '' perineal'' segments (sometimes known together with the abdomen as the lower torso, where the hindlimbs extend). Anatomy Major organs In humans, most critical organs, with the notable exception of the brain, are housed within the torso. In the upper chest, the heart and lungs are protected by the rib cage, and the abdomen contains most of the organs responsible for digestion: the stomach, which breaks down partially digested food via gastric acid; the liver, which respectively produces bile necessary for digestion; the large and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retromolar Fossa
The retromolar fossa is a fossa Fossa may refer to: Animals * Fossa (animal), the common name of a carnivoran mammal of genus ''Cryptoprocta'' endemic to Madagascar * ''Fossa'', the Latin genus name of the Malagasy civet, a related but smaller mammal endemic to Madagascar Pla ... of the mandible located posteriorly to the third molar. Part of the temporal muscle's tendon inserts into it. References Facial bones Vertebrate anatomy {{musculoskeletal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mandible
In anatomy, the mandible, lower jaw or jawbone is the largest, strongest and lowest bone in the human facial skeleton. It forms the lower jaw and holds the lower tooth, teeth in place. The mandible sits beneath the maxilla. It is the only movable bone of the skull (discounting the ossicles of the middle ear). It is connected to the temporal bones by the temporomandibular joints. The bone is formed prenatal development, in the fetus from a fusion of the left and right mandibular prominences, and the point where these sides join, the mandibular symphysis, is still visible as a faint ridge in the midline. Like other symphyses in the body, this is a midline articulation where the bones are joined by fibrocartilage, but this articulation fuses together in early childhood.Illustrated Anatomy of the Head and Neck, Fehrenbach and Herring, Elsevier, 2012, p. 59 The word "mandible" derives from the Latin word ''mandibula'', "jawbone" (literally "one used for chewing"), from ''wikt:mandere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
