"cadavers, it was found that failure of the plantar fascia averaged at loads of 1189 ± 244 newtons (121 ± 24 kgf or 267 ± 55 lbf). Failure most often occurred at the proximal attachment to the calcaneus, which is consistent with the usual location of symptoms (i.e. in plantar fasciitis). Complete rupture or surgical release of the plantar fascia leads to a decrease in arch stiffness and a significant collapse of the longitudinal arch of the foot. By modeling it was predicted such conditions would result in a 17% increase in vertical displacement and a 15% increase in horizontal"
"Plantaris muscle The plantaris is one of the superficial muscles of the superficial posterior compartment of the leg, one of the fascial compartments of the leg. It is composed of a thin muscle belly and a long thin tendon. While not as thick as the achilles tendon, the plantaris tendon (which tends to be between 30 and 45 cm in length) is the longest tendon in the human body. Not including the tendon, the plantaris muscle is approximately 5–10 cm long and is absent in 8-12% of the population. It is one of the plantar flexors in the posterior compartment"
"demonstrate the derivation of the term. Another explanation would be the notching of the sagittal suture posteriorly by the lambdoidal suture —similar to feathers on an arrow. Sagittal plane A sagittal plane (), or longitudinal plane, is an anatomical plane which divides the body into right and left parts. The plane may be in the center of the body and split it into two halves (mid-sagittal) or away from the midline and split it into unequal parts (para-sagittal). Most elements of Irish dancing occur in the sagittal plane. Examples include: The term ""sagittal"" is derived from the Latin word ""sagitta"","
"Sagittal plane A sagittal plane (), or longitudinal plane, is an anatomical plane which divides the body into right and left parts. The plane may be in the center of the body and split it into two halves (mid-sagittal) or away from the midline and split it into unequal parts (para-sagittal). Most elements of Irish dancing occur in the sagittal plane. Examples include: The term ""sagittal"" is derived from the Latin word ""sagitta"", meaning ""arrow"". An image of an arrow piercing a body and passing from front (anterior) to back (posterior) on a parabolic trajectory would be one way to"
"to describe structures include ""buccal"" () and ""palatal"" () referring to structures close to the cheek and hard palate respectively. Several anatomical terms are particular to the hands and feet. For improved clarity, the directional term palmar () is usually used to describe the front of the hand, and dorsal is the back of the hand. For example, the top of a dog's paw is its dorsal surface; the underside, either the palmar (on the forelimb) or the plantar (on the hindlimb) surface. The palmar fascia is palmar to the tendons of muscles which flex the fingers, and the dorsal"
"cases the sclerites are fused to various degrees. Thorax The thorax or chest (from the Greek θώραξ ""thorax"" ""breastplate, cuirass, corslet"" via ) is a part of the anatomy of humans and various other animals located between the neck and the abdomen. The thorax includes the thoracic cavity and the thoracic wall. It contains organs including the heart, lungs, and thymus gland, as well as muscles and various other internal structures. Many diseases may affect the chest, and one of the most common symptoms is chest pain. In humans and other hominids, the thorax is the chest region of the"
"The proximal phalanges join with the metacarpals of the hand or metatarsals of the foot at the metacarpophalangeal joint or metatarsophalangeal joint. The intermediate phalanx is not only intermediate in location, but usually also in size. The thumb and large toe do not possess a middle phalanx. The distal phalanges are the bones at the tips of the fingers or toes. The proximal, intermediate, and distal phalanges articulate with one another through interphalangeal articulations. Each phalanx consists of a central part, called the ""body"", and two extremities. In the foot, the proximal phalanges have a body that is compressed from"
"in modern clinical usage the word bulbar (as in bulbar palsy) is retained for terms that relate to the medulla oblongata, particularly in reference to medical conditions. The word bulbar can refer to the nerves and tracts connected to the medulla, and also by association to those muscles innervated, such as those of the tongue, pharynx and larynx. The medulla can be thought of as being in two parts: The anterior median fissure contains a fold of pia mater, and extends along the length of the medulla oblongata. It ends at the lower border of the pons in a small"
"body section posterior to that bearing the legs and head (the prosoma or cephalothorax). Abdomen The abdomen (less formally called the belly, stomach, tummy or midriff) constitutes the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. The region occupied by the abdomen is termed the abdominal cavity. In arthropods it is the posterior tagma of the body; it follows the thorax or cephalothorax. The abdomen stretches from the thorax at the thoracic diaphragm to the pelvis at the pelvic brim. The pelvic brim stretches from the lumbosacral joint (the intervertebral disc between"
"description of the coronal plane applies to most animals as well as humans even though humans walk upright and the various planes are usually shown in the vertical orientation. The sternal plane (""planum sternale"") is a coronal plane which transects the front of the sternum. The term is derived from Latin corona (“garland, crown”), from Ancient Greek κορώνη (korōnē, “garland, wreath”). Coronal plane A coronal plane (also known as the frontal plane) is any vertical plane that divides the body into ventral and dorsal (belly and back) sections. It is one of the three main planes of the body used"
"Thorax The thorax or chest (from the Greek θώραξ ""thorax"" ""breastplate, cuirass, corslet"" via ) is a part of the anatomy of humans and various other animals located between the neck and the abdomen. The thorax includes the thoracic cavity and the thoracic wall. It contains organs including the heart, lungs, and thymus gland, as well as muscles and various other internal structures. Many diseases may affect the chest, and one of the most common symptoms is chest pain. In humans and other hominids, the thorax is the chest region of the body between the neck and the abdomen, along"
"to: the posterior parietal cortex, which guides voluntary movements, and; the dorsolateral prefrontal cortex, which decides which voluntary movements to make according to higher-order instructions, rules, and self-generated thoughts. Cortex (anatomy) In anatomy and zoology, the cortex (Latin for bark, rind, shell or husk) is the outermost (or superficial) layer of an organ. Organs with well-defined cortical layers include kidneys, adrenal glands, ovaries, the thymus, and portions of the brain, including the cerebral cortex, the best-known of all cortices. The cerebral cortex is typically described as comprising three parts: the sensory, motor, and association areas. These sensory areas receive and"
"mouth and pharynx and the terminal part of the rectum (which are lined by involutions of the ectoderm). It also forms the lining cells of all the glands which open into the digestive tract, including those of the liver and pancreas; the epithelium of the auditory tube and tympanic cavity; the trachea, bronchi, and alveoli of the lungs; the bladder and part of the urethra; and the follicle lining of the thyroid gland and thymus. The endoderm forms: the stomach, the colon, the liver, the pancreas, the bladder, the epithelial parts of trachea, the lungs, the pharynx, the thyroid, the"
"Coronal plane A coronal plane (also known as the frontal plane) is any vertical plane that divides the body into ventral and dorsal (belly and back) sections. It is one of the three main planes of the body used to describe the location of body parts in relation to each other.axis The coronal plane is an example of a longitudinal plane, because it is perpendicular to the transverse plane. For a human, the mid-coronal plane would transect a standing body into two halves (front and back, or anterior and posterior) in an imaginary line that cuts through both shoulders. The"
"distalis (pars glandularis) that constitutes ~80% of the gland. The pars intermedia (the intermediate lobe) lies between the pars distalis and the pars tuberalis, and is rudimentary in the human, although in other species it is more developed. It develops from a depression in the dorsal wall of the pharynx (stomal part) known as Rathke's pouch. The anterior pituitary contains several different types of cells that synthesize and secrete hormones. Usually there is one type of cell for each major hormone formed in anterior pituitary. With special stains attached to high-affinity antibodies that bind with distinctive hormone, at least 5"
"Sternum The sternum or breastbone is a long flat bone located in the center of the chest. It connects to the ribs via cartilage and forms the front of the rib cage, thus helping to protect the heart, lungs, and major blood vessels from injury. Shaped roughly like a necktie, it is one of the largest and longest flat bones of the body. Its three regions are the manubrium, the body, and the xiphoid process. The word ""sternum"" originates from the Greek στέρνον, meaning ""chest"". The sternum is a long, flat bone, forming the middle portion of the front of"
"Plantar nerve The plantar nerves are a pair of nerves innervating the sole of the foot. They arise from the posterior branch of the tibial nerve. The medial plantar nerve supplies: the abductor hallucis, the flexor digitorum brevis, the flexor hallucis brevis and the first lumbrical. Cutaneous distribution of the medial plantar nerve is to the medial sole and medial three and one half toes, including the nail beds on the dorsum (like the median nerve in the hand). Mnemonic LAFF muscles (pronounced ""laugh"") L – first Lumbrical, A – Abductor Hallucis, F – Flexor digitorum brevis, F – flexor"
"Subcapitulum The subcapitulum (from Latin ""sub"", under and ""capitulum"", small head), also known as infracapitulum, hypognathum or hipognatum, refers to the ventral part of the gnathosoma (the part of the body comprising the mouth and feeding parts) or the fusion of the palpal coxae and the labrum (the upper or anterior mouthpart) complex present in the mites on which the mouth, pedipalps (the second pair of appendages), lips and pharynx are located. In its central part, the gutter hypostome (the anterior part of the subcapitulum) is formed, which in the forceps is transformed into a serrated pricking system. The anterolateral"
"Cortex (anatomy) In anatomy and zoology, the cortex (Latin for bark, rind, shell or husk) is the outermost (or superficial) layer of an organ. Organs with well-defined cortical layers include kidneys, adrenal glands, ovaries, the thymus, and portions of the brain, including the cerebral cortex, the best-known of all cortices. The cerebral cortex is typically described as comprising three parts: the sensory, motor, and association areas. These sensory areas receive and process information from the senses. The senses of vision, audition, and touch are served by the primary visual cortex, primary auditory cortex and primary somatosensory cortex. The cerebellar cortex"
"palm as the palma and palmar, the thumb as the pollex, and the fingers as the digits, phalanges, and phalangeal. The buttocks are the gluteus or gluteal region and the pubic area is the pubis. Anatomists divide the lower limb into the thigh (the part of the limb between the hip and the knee) and the leg (which refers only to the area of the limb between the knee and the ankle). The thigh is the femur and the femoral region. The kneecap is the patella and patellar while the back of the knee is the popliteus and popliteal area."
"which develops from the maternal uterine tissue. It metabolizes a number of substances and can release metabolic products into maternal or fetal circulations. The placenta is expelled from the body upon birth of the fetus. The word ""placenta"" comes from the Latin word for a type of cake, from Greek πλακόεντα/πλακοῦντα ""plakóenta/plakoúnta"", accusative of πλακόεις/πλακούς ""plakóeis/plakoús"", ""flat, slab-like"", in reference to its round, flat appearance in humans. The classical plural is ""placentae"", but the form ""placentas"" is common in modern English and probably has the wider currency at present. Placental mammals, such as humans, have a chorioallantoic placenta that forms"
"Temple (anatomy) The temple indicates the side of the head behind the eye between the forehead and the ear. The bone beneath is the temporal bone as well as part of the sphenoid bone. Cladists classify land vertebrates based on the presence of an upper hole, a lower hole, both, or neither in the cover of dermal bone that formerly covered the temporalis muscle, whose origin is the temple and whose insertion is the jaw. The brain has a lobe called the temporal lobe. The word ""templar"" as used in anatomy has a separate etymology from the word ""temple"", meaning"
"hypochondriac regions; the right and left lumbar regions which flank the umbilical region (which surrounds the umbilicus, or belly button), the right and left iliac and inguinal regions which are where the hips are, and the hypogastric/pubic region, which lies between the hips. The thoracic cavity is separated from the abdominopelvic cavity by the diaphragm. The thoracic cavity is further separated into the pleural cavity which contains the lungs and the superior mediastinum which includes the pericardial (heart) cavity. The organs within the ventral body cavity are called the viscera. Ventral body cavity The ventral body cavity is a human"
"Torso The torso or trunk is an anatomical term for the central part or core of many animal bodies (including humans) from which extend the neck and limbs. The torso includes: the chest, abdomen, and back. Most critical organs 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 small intestines, which extract nutrients from food; the"
"position, with each position having an association with a particular body area. For example, each of the paired pulse positions can represent the upper, middle and lower cavities of the torso, or are associated individually with specific organs. (For example, the small intestine is said to be reflected in the pulse at the left superficial position, and the heart at the deep position.) Various classic texts cite different arrangements to the pairings of organs, some omitting the second organ from the pulse entirely while others show organ systems reflecting the acupuncture channels (five phase pulse associations), and another the physical"
"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"
"bulb of the corpus spongiosum penis) is homologous to the vestibular bulbs beneath the labia minora, and the scrotum is homologous to the labia minora and labia majora. Upon anatomical study, the penis can be described as a clitoris that has been mostly pulled out of the body and grafted on top of a significantly smaller piece of spongiosum containing the urethra. With regard to nerve endings, the human clitoris's estimated 8,000 or more (for its glans or clitoral body as a whole) is commonly cited as being twice as many as the nerve endings found in the human penis"
"visual cortex (V1). The word ""pulvinar"" () comes to scientific English vocabulary via New Latin from classical Latin ""pulvinus"", ""cushion"". In the religion of ancient Rome, a pulvinar was an empty throne, a cushioned couch for occupation by a deity. Like the cervix uteri is usually just called the cervix (with ""which cervix"" being implicit), the pulvinar thalami (pulvinar of the thalamus) is usually just called the pulvinar; no other anatomic structure in today's Terminologia Anatomica is called a pulvinar, although in older terminology a part of the glomus body was called the pulvinar tunicae internae segmenti arterialis anastomosis arteriovenae"
"Anatomical plane An anatomical plane is a hypothetical plane used to transect the human body, in order to describe the location of structures or the direction of movements. In human and animal anatomy, three principal planes are used: There could be any number of sagittal planes; however, there is only one cardinal sagittal plane. The term ""cardinal"" refers to the one plane that divides the body into equal segments, with exactly one half of the body on either side of the cardinal plane. The term ""cardinal plane"" appears in some texts as the ""principal plane"". The terms are interchangeable. The"
"gland is located at the base of the brain, and intimately connected with the hypothalamus. It consists of two lobes: the posterior pituitary, which consists of nervous tissue branching out of the hypothalamus, and the anterior pituitary, which consists of hormone-producing epithelium. The posterior pituitary secretes antidiuretic hormone, which regulates osmolarity of the blood, and oxytocin, which causes contractions of the uterus in childbirth and participates in breastfeeding. The pituitary develops in the third week of embryogenesis from interactions between the diencephalon part of the brain and the nasal cavity. The brain cells secrete FGF-8, Wnt5a and BMP-4, and the"
"a constitutional duplication of a chromosome Xq26.3 including ""GPR101"", or mosaicism for the duplication (present in a minority of cells) in the case of isolated male patients. X-LAG causes about 10% of cases of pituitary gigantism. The pituitary gland or hypophysis is often referred to as the ""master gland"" of the human body. Part of the hypothalamic-pituitary axis, it controls most of the body's endocrine functions via the secretion of various hormones into the circulatory system. The pituitary gland is located below the brain in a depression (fossa) of the sphenoid bone known as the sella turcica. Although anatomically and"
"and food. Placenta The placenta is a temporary organ that connects the developing fetus via the umbilical cord to the uterine wall to allow nutrient uptake, thermo-regulation, waste elimination, and gas exchange via the mother's blood supply; to fight against internal infection; and to produce hormones which support pregnancy. Placentas are a defining characteristic of placental mammals, but are also found in marsupials and some non-mammals with varying levels of development. The placenta functions as a fetomaternal organ with two components: the fetal placenta (Chorion frondosum), which develops from the same blastocyst that forms the fetus, and the maternal placenta"
"organ systems. The digestive system consists of a mouth, pharynx, and a gastrovascular cavity. The mouth is located in the center of the underside of the body. Digestive enzymes are secreted from the mouth to begin external digestion. The pharynx connects the mouth to the gastrovascular cavity. This structure branches throughout the body allowing nutrients from food to reach all extremities. Planaria eat living or dead small animals that they suck up with their muscular mouths. Food passes from the mouth through the pharynx into the intestines where it is digested by the cells lining the intestines. Then its nutrients"