"like the brain and nerve cord. The transmission of signals to higher order processing centers allows the organism to become aware of what type of particles are in and around the mouth. Buccal cirri function as a food processing organ that is used to prevent larger particles from entering the oral hood. The buccal cirri does this by working with the velar tentacles to create a comb like feeding appendage that sifts the particles that are entering via the water stream. This allows the smaller particles to continue through to the oral hood while the larger ones are brushed away."
"Buccal space The buccal space (also termed the buccinator space) is a fascial space of the head and neck (sometimes also termed fascial tissue spaces or tissue spaces). It is a potential space in the cheek, and is paired on each side. The buccal space is superficial to the buccinator muscle and deep to the platysma muscle and the skin. The buccal space is part of the subcutaneous space, which is continuous from head to toe. The boundaries of each buccal space are: In health, the space contains: A hematoma may create the buccal space, e.g. due to hemorrhage following"
"with apices at a level inferior to the attachment, and maxillary teeth with apices at a level superior to the attachment are more likely to drain into the buccal space. Buccal space The buccal space (also termed the buccinator space) is a fascial space of the head and neck (sometimes also termed fascial tissue spaces or tissue spaces). It is a potential space in the cheek, and is paired on each side. The buccal space is superficial to the buccinator muscle and deep to the platysma muscle and the skin. The buccal space is part of the subcutaneous space, which"
"mouth, also called the oral cavity , is the entranceway into the digestive system containing both primary and accessory organs of digestion. Two rows of teeth are supported by facial bones of the skull, the maxilla above and the mandible below. Adults have 32 permanent teeth, and children have 20 deciduous teeth. There are various tooth shapes for different jobs. For example, when chewing, the upper teeth work together with the lower teeth of the same shape to bite, chew, and tear food. The names of these teeth are: The white visible part of a tooth is called the ""crown""."
"a bone called the mandible, more commonly known as the jaw, at their respective alveolar processes. The surface of the oral cavity between the teeth and the inner side of the lips are called the oral vestibule. Surrounding the oral cavity, there are many different muscles that facilitate chewing, opening the mouth, and swallowing. Each muscle, group of muscles, or separate anatomical compartment is encased in a thin fibrous layer of connective tissue called fascia. Normally, the fascia of adjacent structures are in direct contact with each other. However, air or pus can occupy the space between adjacent fascia, known"
"Cheek The cheeks () constitute the area of the face below the eyes and between the nose and the left or right ear. ""Buccal"" means relating to the cheek. In humans, the region is innervated by the buccal nerve. The area between the inside of the cheek and the teeth and gums is called the vestibule or buccal pouch or buccal cavity and forms part of the mouth. In other animals the cheeks may also be referred to as jowls. Cheeks are fleshy in humans, the skin being suspended by the chin and the jaws, and forming the lateral wall"
"with it a significant risk of damage to the buccal branch of the facial nerve and the parotid ducts. Buccal fat pad The buccal fat pad (also called Bichat’s fat pad, after Marie François Xavier Bichat, and the buccal pad of fat), is one of several encapsulated fat masses in the cheek. It is a deep fat pad located on either side of the face between the buccinator muscle and several more superficial muscles (including the masseter, the zygomaticus major, and the zygomaticus minor). The inferior portion of the buccal fat pad is contained within the buccal space. It should"
"the stomach, and the upper portion of the duodenum. ""This Wikipedia entry incorporates text from the freely licensed Connexions edition of Anatomy & Physiology text-book by OpenStax College"" Body cavity A body cavity is any fluid-filled space in a multicellular organism other than those of ""vessels"" (such as blood vessels and lymph vessels). The human body cavity normally refers to the ventral body cavity, because it is by far the largest. A coelom is a cavity lined by mesothelium, an epithelium derived from mesoderm. Organs formed inside a coelom can freely move, grow, and develop independently of the body wall"
"Body cavity A body cavity is any fluid-filled space in a multicellular organism other than those of ""vessels"" (such as blood vessels and lymph vessels). The human body cavity normally refers to the ventral body cavity, because it is by far the largest. A coelom is a cavity lined by mesothelium, an epithelium derived from mesoderm. Organs formed inside a coelom can freely move, grow, and develop independently of the body wall while fluid cushions and protects them from shocks. Arthropods and most molluscs have a reduced (but still true) coelom, usually the pericardial cavity and the gonocoel. Their principal"
"of the human mouth, visibly touching the cheekbone below the eye. The inside of the cheek is lined with a mucous membrane (buccal mucosa, part of the oral mucosa). During mastication (chewing), the cheeks and tongue between them serve to keep the food between the teeth. The cheeks are covered externally by hairy skin, and internally by stratified squamous epithelium. This is mostly smooth, but may have caudally directed papillae (e.g., in ruminants). The mucosa is supplied with secretions from the Buccal glands, which are arranged in superior and inferior groups. In carnivores, the superior buccal gland is large and"
"Buccal exostosis A buccal exostosis (also termed alveolar exostosis), is an exostosis (bone prominence) on the buccal surface (cheek side) of the alveolar ridge of the maxilla or mandible. Some consider them a variation of normal anatomy rather than a disease. Formation on the lower jaw occurs much less commonly than on the upper jaw. They are painless and have no risk of turning into cancer, although they may slowly expand over years, or sometimes more rapidly. Why buccal exostoses form is unclear, but it may involve bruxism (tooth clenching and grinding), and genetic factors. Typically they first appear in"
"discrete: the Zygomatic gland. During mastication (chewing), the cheeks and tongue between them serve to keep the food between the teeth. Some animals such as squirrels and hamsters use the buccal pouch to carry food or other items. In some vertebrates, markings on the cheek area, particularly immediately beneath the eye, often serve as important distinguishing features between species or individuals. Sometimes people refer to the buttocks as the ""cheeks"", because of their semi-round appearance. The cheek is the most common location from which a DNA sample can be taken (during a cheek swab). Cheek The cheeks () constitute the"
"lined by epithelium. The protective tissues of the oral cavity are continuous with the digestive tract are called mucosa or mucous membranes. The cells of the inner oral cavity are called the buccal mucosa. The oral cavity is lined by a stratified squamous epithelium containing about three layers of cells. They line the oral, nasal, and external auditory meatus, (ear), providing lubrication and protection against pathogens. The lips are also protected by specialized sensory cells called Meissner's corpuscles. Blood circulates from the upper systemic loop originating at the aortic arch, and includes: the brachiocephalic artery, left common carotid artery and"
"body cavity is the ""hemocoel"" or ""haeomocoel"" of an open circulatory system, often derived from the blastocoel. Mammalian embryos develop two cavities: the intraembryonic coelom and the extraembryonic coelom (or chorionic cavity). The intraembryonic coelom is lined by somatic and splanchnic lateral plate mesoderm, while the extraembryonic coelom is lined by extraembryonic mesoderm. The intraembryonic coelom is the only cavity that persists in the mammal at term, which is why its name is often contracted to simply ""coelomic cavity"". Subdividing the coelomic cavity into compartments, for example, the pericardial cavity / pericardium, where the heart develops, simplifies discussion of the"
"Buccal fat pad The buccal fat pad (also called Bichat’s fat pad, after Marie François Xavier Bichat, and the buccal pad of fat), is one of several encapsulated fat masses in the cheek. It is a deep fat pad located on either side of the face between the buccinator muscle and several more superficial muscles (including the masseter, the zygomaticus major, and the zygomaticus minor). The inferior portion of the buccal fat pad is contained within the buccal space. It should not be confused with the malar fat pad, which is directly below the skin of the cheek. It should"
"and possesses buccal cirri, which assist in sifting out larger food particles before they enter the buccal cavity. Epithelial cilia lining the mouth and pharynx form a specialized ""wheel organ"" situated at the dorsal and posterior end of the cavity. The motion of the cilia resembles the motion of a turning wheel, hence the organ's name, and transports the captured food particles. Behind the wheel organ is the velum, which acts as an internal filter before food enters the pharynx. The food particles adhere to secreted mucus on the pharyngeal bars before being brought to the epibranchial groove on the"
"torus palatinus. Buccal exostosis A buccal exostosis (also termed alveolar exostosis), is an exostosis (bone prominence) on the buccal surface (cheek side) of the alveolar ridge of the maxilla or mandible. Some consider them a variation of normal anatomy rather than a disease. Formation on the lower jaw occurs much less commonly than on the upper jaw. They are painless and have no risk of turning into cancer, although they may slowly expand over years, or sometimes more rapidly. Why buccal exostoses form is unclear, but it may involve bruxism (tooth clenching and grinding), and genetic factors. Typically they first"
"parts of the body may also have specific names for these structures. For example, the serosa of the uterus is called the perimetrium. The pericardial cavity (surrounding the heart), pleural cavity (surrounding the lungs) and peritoneal cavity (surrounding most organs of the abdomen) are the three serous cavities within the human body. While serous membranes have a lubricative role to play in all three cavities, in the pleural cavity it has a greater role to play in the function of breathing. The serous cavities are formed from the intraembryonic coelom and are basically an empty space within the body surrounded"
"intestine. The mouth is the first part of the upper gastrointestinal tract and is equipped with several structures that begin the first processes of digestion. These include salivary glands, teeth and the tongue. The mouth consists of two regions; the vestibule and the oral cavity proper. The vestibule is the area between the teeth, lips and cheeks, and the rest is the oral cavity proper. Most of the oral cavity is lined with oral mucosa, a mucous membrane that produces a lubricating mucus, of which only a small amount is needed. Mucous membranes vary in structure in the different regions"
"Coelom The coelom is the main body cavity in most animals and is positioned inside the body to surround and contain the digestive tract and other organs. In developed animals, it is lined with mesothelium. In other animals, such as molluscs, it remains undifferentiated. The term ""coelom"" derives from the Ancient Greek word (), meaning ""cavity"". During the development of the embryo, coelom formation begins in the gastrulation stage. The developing digestive tube of an embryo forms as a blind pouch called the archenteron. In Protostomes, the coelom forms by a process known as schizocoely. The archenteron initially forms, and"
"the seat of the sense of taste, ""palate"" can also refer to this sense itself, as in the phrase ""a discriminating palate"". By further extension, the flavor of a food (particularly beer or wine) may be called its palate, as when a wine is said to have an oaky palate. Palate The palate is the roof of the mouth in humans and other mammals. It separates the oral cavity from the nasal cavity. A similar structure is found in crocodilians, but in most other tetrapods, the oral and nasal cavities are not truly separate. The palate is divided into two"
"the cavity. An abscess may also form as a secondary reaction to an infection. Antibiotics have become an important tool in fighting abscesses; however, external drainage is usually required also. Abdominal cavity The abdominal cavity is a large body cavity in humans and many other animals that contains many organs. It is a part of the abdominopelvic cavity. It is located below the thoracic cavity, and above the pelvic cavity. Its dome-shaped roof is the thoracic diaphragm, a thin sheet of muscle under the lungs, and its floor is the pelvic inlet, opening into the pelvis. Organs of the abdominal"
"canal is the foregut (element 27 in numbered diagram), or stomodaeum. The foregut is lined with a cuticular lining made of chitin and proteins as protection from tough food. The foregut includes the buccal cavity (mouth), pharynx, esophagus and crop and proventriculus (any part may be highly modified), which both store food and signify when to continue passing onward to the midgut. Digestion starts in buccal cavity (mouth) as partially chewed food is broken down by saliva from the salivary glands. As the salivary glands produce fluid and carbohydrate-digesting enzymes (mostly amylases), strong muscles in the pharynx pump fluid into"
"Palate The palate is the roof of the mouth in humans and other mammals. It separates the oral cavity from the nasal cavity. A similar structure is found in crocodilians, but in most other tetrapods, the oral and nasal cavities are not truly separate. The palate is divided into two parts, the anterior bony hard palate and the posterior fleshy soft palate (or velum). The maxillary nerve branch of the trigeminal nerve supplies sensory innervation to the palate. The hard palate forms before birth. If the fusion is incomplete, it is called a cleft palate. When functioning in conjunction with"
"proper. The mouth, normally moist, is lined with a mucous membrane, and contains the teeth. The lips mark the transition from mucous membrane to skin, which covers most of the body. The mouth, consists of 2 regions, the vestibule and the oral cavity proper. The vestibule is the area between the teeth, lips and cheeks. The oral cavity is bounded at the sides and in front by the alveolar process (containing the teeth) and at the back by the isthmus of the fauces. Its roof is formed by hard palate at the front, and a soft palate at the back."
"Thoracic cavity The thoracic cavity (or chest cavity) is the chamber of the body of vertebrates that is protected by the thoracic wall (rib cage and associated skin, muscle, and fascia). The central compartment of the thoracic cavity is the mediastinum. There are two openings of the thoracic cavity, a superior thoracic aperture known as the thoracic inlet and a lower inferior thoracic aperture known as the thoracic outlet. The thoracic cavity includes the tendons as well as the cardiovascular system which could be damaged from injury to the back, spine or the neck. Structures within the thoracic cavity include:"
"lungs may collapse, which requires immediate medical attention. Thoracic cavity The thoracic cavity (or chest cavity) is the chamber of the body of vertebrates that is protected by the thoracic wall (rib cage and associated skin, muscle, and fascia). The central compartment of the thoracic cavity is the mediastinum. There are two openings of the thoracic cavity, a superior thoracic aperture known as the thoracic inlet and a lower inferior thoracic aperture known as the thoracic outlet. The thoracic cavity includes the tendons as well as the cardiovascular system which could be damaged from injury to the back, spine or"
"organ, Hatschek's pit, and the tracts in the pharynx called the endostyle and epibranchial groove. Buccal cirri Buccal cirri are feeding structures found in the oral hood of primitive jawless organisms called amphioxus. The word buccal is derived from the term ""bucca"" which means ""cheek"" and cirri is derived from the Latin word ""cerrus"" meaning a tendril or a small and flexible appendage. Cirri, plural for cirrus, are small, filament-like appendages that act like tentacles. Tentacles are elongated appendages from the cephalic region of organisms that aid in sensory and locomotive abilities. Buccal cirri extend from the oral hood on"
"Body cavity search A body cavity search, also known simply as a cavity search, is either a visual search or a manual internal inspection of body cavities for prohibited materials (contraband), such as illegal drugs, money, jewelry, or weapons. Body cavities used for concealment include nostrils, ears, mouth, navel, penis (urethra and foreskin) or vagina, and rectum. It is far more invasive than the standard strip search that is typically performed on individuals taken into custody, either upon police arrest or incarceration at a jail, prison, or psychiatric hospital. Often the procedure is repeated when the person leaves the institution."
"Cranial cavity The cranial cavity, also known as intracranial space, is the space within the skull. The skull, also known as the cranium, contains the brain. Meninges are protective membranes that surround the brain to minimize damage of the brain when there is head trauma. Meningitis is the inflammation of meninges caused by bacterial or viral infections. The spaces between meninges and the brain are filled with a clear cerebrospinal fluid, increasing the protection of the brain. Facial bones of the skull are not included in the cranial cavity. There are only eight cranial bones: The occipital, two parietal, the"
"adulthood. The posterior lobe of the buccal fat pad runs from the infraorbital fissure and temporal muscle to the upper rim of the mandible and back to the mandibular ramus. Some people describe the buccal fat pad’s primary function in relation to chewing and suckling, especially in infants. This theory derives some support from the loss of volume to the intermediate lobe, which would be most directly involved in chewing and sucking, from infancy to adulthood. Another proposed function is as gliding pads that facilitate the action of the muscles of mastication. The buccal fat pad may also function as"
"inlet. The space above this inlet and under the thoracic diaphragm is termed the abdominal cavity. The boundary of the abdominal cavity is the abdominal wall in the front and the peritoneal surface at the rear. The abdomen contains most of the tubelike organs of the digestive tract, as well as several solid organs. Hollow abdominal organs include the stomach, the small intestine, and the colon with its attached appendix. Organs such as the liver, its attached gallbladder, and the pancreas function in close association with the digestive tract and communicate with it via ducts. The spleen, kidneys, and adrenal"
"Esophagus The esophagus (American English) or oesophagus (British English) (), commonly known as the food pipe or gullet (gut), is an organ in vertebrates through which food passes, aided by peristaltic contractions, from the pharynx to the stomach. The esophagus is a fibromuscular tube, about 25 centimetres long in adults, which travels behind the trachea and heart, passes through the diaphragm and empties into the uppermost region of the stomach. During swallowing, the epiglottis tilts backwards to prevent food from going down the larynx and lungs. The word ""esophagus"" is the Greek word οἰσοφάγος , meaning ""gullet"". The wall of"