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Anterior in Biological Dictionary

Ventricle

... also contains two saclike recesses called the anterior ... ventricle n. A small cavity or chamber ... younger ... tumors occur uncommonly in the anterior third ventricle . ... Double inlet ventricle ... third ventricle . tricuspid valve ... The anterior horn of the lateral ventricle is the farthest ...

Posterior

... 2.1.1 anterior and posterior . 2.1.2 Dorsal and ventral ... For other uses, see anterior (disambiguation) and Posterior ... visualizes ilioischial ( posterior ) column & anterior acetabular rim; ... medial surface forms ...

Pituitary gland

... the pituitary gland is divided into a larger anterior region ... pituitary gland n. A small oval ... of the vertebrate brain and consisting of an anterior and a posterior lobe, the Description of ... functions as two separate compartments an anterior ... The pituitary is a small gland ...

Acrosome

... is an organelle that develops over the anterior half of the head in the spermatozoa (sperm cell) ... encyclopedia. ... acrosome - a process at the anterior end of a sperm cell that produces enzymes ... is an organelle that develops over the anterior half of the head in ... Fertilization, the ...

Urethra

... penis, testes (testicles). The ... ... of cancer of the urethra . anterior urethral cancer. Posterior ... How cancer of the urethra is treated. Treatment by stage. anterior ... of the urethra ? ... ...

Pectoral girdle

... ′gərdəl ) ( anatomy ) The system of bones supporting the upper or anterior limbs in vertebrates ... the pectoral girdle ? Read ... pectoral ... structure in vertebrates, attached to and supporting the forelimbs or anterior fins Pectoral girdle - Wikipedia, the free encyclopedia ... ...

Nerve chord

... end all of the strife ... notochord extends beyond nerve chord to anterior of animal and is contractile ... Similarity of the Hox genes controlling anterior nerve cord (brain in vertebrates) ... ... of touch a chord in the ...

Nasal cavity

... cavities separated by a septum and located between the nasopharynx and anterior nasal adj. Of, in, or relating to the nose. Linguistics. Articulated ... sinuses or nasal cavity are the most common malignant tumors of the anterior skull base. Nasal Cavity and Sinus Surgery. Nasopharynx Cancer. ...

Mesoderm

... ... The cardiac mesoderm precursors are in contact with presumptive anterior ... Conversely, anterior paraxial mesoderm , which lies medial to the heart-forming ... Zoology ...

Mandibles

... mandibles are a pair of appendages near the insect’s mouth, and the most anterior of the three pairs of oral appendages . Their function is typically to ... mandibles are a pair of appendages near the insect's mouth, and the most anterior of the three Mandible (arthropod) Mandibulata The mandibles of a ...

Labium

... and penis (or labium majus and clitoris) ... lower abdominal wall and anterior scrotum/ labium majus ... of anterior scrotum/ labia majora & upper medial ... ... for a grossly swollen ...

Forebrain

... thesaurus, Word of the Day, and word games. forebrain n. The most anterior of the three primary regions of the embryonic brain from which the ... forebrain in the free online English dictionary and ... forebrain - the anterior portion of the brain; the part of the brain that ... Psychology ...

Endoderm

... ... current model, the endoderm specification pathway is initiated ... anterior primitive endoderm may be responsible for patterning the anterior ... We propose that primitive endoderm is responsible for the initial ...

Cerebrum

... together with the diencephalon, constitute the forebrain. It is the most anterior or, especially in humans, most superior region of the vertebrate central ... ... pertaining to the cerebrum ... The cerebrum is located in the anterior portion ... The Cerebrum . Gray's Anatomy: Arrangement Of The Cerebrum . ...

Thyroid gland

... and treatment, clinical trials, prevention, genetics, screening and testing, and research and statistics. (Click to enlarge) thyroid gland anterior view (Carlyn Iverson) thyroid gland n. A two-lobed endocrine gland found in all vertebrates, located in The Thyroid Foundation of Canada ...

Thymus gland

... In human anatomy, the thymus is an organ located in the upper anterior portion of the chest cavity just behind the sternum. The main function of the thymus is to provide an area for T lymphocyte maturation. The thymus ...

Thalamus

... matter cells located at the top ... Thalamus . From: Neuropsychiatry, Neuropsychology, Clinical Neuroscience. by ... THALAMUS ... The DMT and anterior thalamus are able to perform these ... Brief and Straightforward Guide: What is the Thalamus ? ... The thalamus , coined from the Greek word ...

Sutures

... that connect the bones of the skull. ... Feeling the cranial sutures and fontanelles is ... The facial sutures of Asaphiscus run from the anterior of the cephalon to the ... What are facial sutures ? ... Facial sutures once played a primary role in ... Sutures , or stitches, are the most ...

Scapula

... part of the ... Dr. Rahul Nath is director of the Texas Nerve Institute in the Texas Medical Center specializing in winging scapula , serratus anterior and long thoracic nerve Scapula - Definition of Scapula at Dictionary.com a free online dictionary with ... Scapula Definition. Find ...

Premolars

... at least two cusps. Premolars can be considered as a 'transitional tooth' during chewing, or mastication. It has properties of both the anterior canines ... The maxillary first premolar is the tooth located laterally from both the maxillary canines of the mouth but mesial from both ...

Pinna

... ? ... Pinna (anatomy) Pinna (anatomy) The auricula . Lateral surface. Latin auricula Gray's subject #229 1034 Artery posterior auricular , anterior The ears are composed of external pinna (outside portion of the ear) and a skin ... The portion of the pinna that is contiguous with the ear ...

Pharynx

... pharynx is the part of the digestive system situated posterior to the nasal ... The constrictors of the pharynx have their fixed points in the anterior larynx, ... The cavity of the pharynx may be subdivided from above downward into three parts: ... The Nasal Part of the Pharynx (pars nasalis ...

Peritoneum

... (retro) the peritoneum . It has no specific delineating anatomical structures. Organs are retroperitoneal if they only have peritoneum on their anterior side. Peritoneum information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues. ... The visceral ...

Palate

... roof of the mouth in humans and vertebrate animals. It separates the oral cavity from the nasal cavity. The palate is divided into two parts, the anterior bony hard palate , and the posterior fleshy soft palate or velum. The maxillary nerve branch ... Cleft lip (cheiloschisis) and cleft ...

Ostium

... or intracardiac echo is important to identify anomalies, such as a common PV ostium (Figure 7) ... ... ostium and the commissure between the anterior and septal ... The atrioventricular node is located directly in front of the ostium of the coronary sinus. ... State-of-the-Art Technique for ...

Oral groove

... ... If you can find the oral groove and the anus (cytoproct), then the posterior end is on the anus side of the oral groove , and the anterior end is on the not-anus side ... A system of professed theological beliefs that doesn't quite qualify as a bona fide religion, yet gives one ... ...

Optic nerve

... through thelamina cribrosa. ... Optic Nerve Head Drusen. Signs and Symptoms ... Within the optic nerve , the hyaline bodies are confined anterior to the lamina ... The optic nerve transmits electrical impulses from the retina to the brain. ... The retina's sensory receptor cells of ...

Nuclear lamina

... ... infection with herpesviruses, the nuclear lamina restricts the efficiency of ... We examined the nuclear lamina in the quickly frozen anterior pituitary cells by ... The nuclear lamina was first described in invertebrates by transmission electron ... The nuclear lamina is a ...

Nodule

...... A vocal cord nodule is a mass of tissue that grows on the vocal folds (vocal cords). Typically this mass will appear on the junction of the anterior and middle two-thirds of the vocal fold, where contact is most forceful. What is a thyroid nodule ? The thyroid gland is located in the lower ...

Medulla

... and derives from ... The medulla oblongata is the lower portion of the brainstem. It deals with autonomic functions. ... The medulla has an anterior median fissure and a posterior ... with my artist friend Gabriela and she came up with the title Medúlla . ... Medúlla Biography. LAKESIDE. ...

Masseter

... muscle of the jaw. ... When irritated, masseter's muscle knots can cause and/or aggravate several problems: ... MASSETER . ORIGIN. anterior two thirds of zygomatic arch and zygomatic process of maxilla ... Elevates mandible (enables forced closure of mouth) NERVE ... What is ...

Malpighian tubule

... ... Malpighian tubule dissection and application of the Ramsay assay for measurement ... The four Malpighian tubules are arranged as an anterior and posterior pair. ... Classical physiological study of the Malpighian tubule has led to a detailed ... In Drosophila, the adult ...

Longitudinal axis

... to the longitudinal axis of the antler at the smallest place ... Ligaments are fibrous bands or sheets of connective tissue linking ... anterior Longitudinal . Axis – Sacrum. Extension & reinforces front of annulus fibrosis ... US6857147: Synchronization drive for a longitudinal ...

Limbic system

... The limbic system is a set of brain structures including the hippocampus, amygdala, anterior thalamic nuclei, and limbic cortex, which support a variety of functions including emotion, behavior, long term memory, ... The limbic ...

Ligaments

... 85 percent of all ankle injuries involve ligament sprains. ... Shop for Pelvis W/ Ligaments at mySimon. Smart Shopping at mySimon. The anterior cruciate ligament (ACL) is one of the most important of four strong ligaments connecting the bones of the knee joint. It is often injured. ...

Labrum

... A SLAP (Superior Labrum from anterior to Posterior) tear or lesion is an injury ... Radiographics search on Superior Labrum . v • d • e ... For other uses, see: Labrum ...

Interstitial cells

... " interstitial cell " ... Interstitial cell - Wikipedia, the free encyclopedia ... Acronym for Interstitial Cell Stimulating Hormone an anterior pituitary ... In humans, interstitial cells of Cajal (ICC) myenteric plexus (ICC-MP) forms ... Interstitial cells in early renal ...

Infundibulum

... near the infundibulum of the gallbladder. ... traced to its division near the infundibulum /cystic duct junction. ... ... divided into an anterior infundibulum , middle ... infundibulum (or "tuba") or the vagina of a variety ... in the posterior infundibulum although sperm may ... ...

Hypothalamus

...... achieve this task, the hypothalamus must receive inputs about ... The hypothalamus is a very small, but extremely important part of the ... anterior hypothalamus blocks the production of ADH, resulting in diabetes insipidus, ... The hypothalamus (from Greek ὑποθαλαμος, "under the thalamus") ...

Duodenum

... in most higher vertebrates, including mammals, reptiles, and birds. In fish, the divisions of the small intestine are not as clear and the terms anterior intestine or proximal intestine may be used instead ... The duodenum is the first part of the small intestine. ... stomach acid, ...
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