Sides of the body are rough which gives attachment to the fibrous sheets of the flexor tendons. See more. Definition: A copulatory organ of the external genitalia of males whose function is to enable the reproduction, sexual pleasure and micturition: Parts: Root (radix), body (shaft), glans: Contents: Corpora cavernosa, corpus spongiosum, urethra: Blood supply: Bulbourethral artery, dorsal artery of penis, cavernous (deep/cavernosal) artery of penis; A comparison of sweat gland diameter in dorsal, lateral, and ventral areas of all the body regions concluded that in dorsal area the maximum diameter was observed in abdomen dorsal followed by neck dorsal, head dorsal, thorax dorsal, and tail dorsal areas but the difference was significant (p<0.05) in the head, thorax, and tail. These are mostly used with animal anatomy, but can be used in human anatomy as long as they are describing the side of an appendage. Innervation is via the tonsillar branch of glossopharyngeal nerve (CN IX) and the lesser palatine nerve, while the jugulodigastric and upper deep cervical lymph nodes are responsible for lymphatic drainage . The Body of proximal and intermediate phalanges is convex on dorsal and flat on palmar side, and it tapers from above downward. A long narrow opening; a crack or cleft. Each phalanx has a body (shaft), proximal part (base) and a distal part (head). The Circle of Willis is a ring-like arterial structure located at the base of the brain that supplies blood to the brain and surrounding structures. One example is the dorsal fin in fish, found on the upper side of the fish’s body. The white matter of the spinal cord surrounds the gray matter and is composed of myelinated axons. The process of splitting or separating; division. In this interactive learning activity, learners review the terms used to describe relative position of body parts in order to have a common set of words to describe their position. Principal white matter tracts of clinical significance include the descending motor pathways of the corticospinal (pyramidal) tract, which run laterally and anteriorly (ventrally) in the cord throughout its length (figure 1-3). Dorsal means the back side or upper side, while ventral means the frontal or lower side. 3. n. 1. Sagittal Plane Definition. Define fissure. Dorsal Root Ganglion: Function & Definition 5:32 Go to Basic Anatomy and Cell Biology: Help and Review Ch 5. Structure and Anatomy. A separation into subgroups or factions; a schism. Penis definition, the male organ of copulation and, in mammals, of urinary excretion. The sagittal plane is an anatomical boundary that exists between the left and right sides of the body. The sagittal planes runs parallel to the longitudinal axis of the organism, or from the mouth to the tail.The direction toward the sagittal plane is called medial, while the direction away from the sagittal plane is known as lateral. Gross Anatomy The nucleus is located in the paramedian dorsal lower pons in the floor of the fourth ventricle lateral to the medial longitudinal fasciculus. Function. In come cases, parietal and visceral peritoneum are also continuous along the ventral abdomen, where they are called ventral mesentery. The abducent or abducens nucleus is a small motor nucleus in the pons for the abducens nerve. 2. Nodes of Ranvier are the spaces between the myelin coating on the neuron's axon. It is a component of the cerebral circulation and is comprised of five arteries.. As seen in the diagram to the right, the intestines are, in essence, suspended from the dorsal aspect of the peritoneal cavity by a fused, double layer of parietal peritoneum called mesentery. fissure synonyms, fissure pronunciation, fissure translation, English dictionary definition of fissure. Anatomical Terminology: Relative Position By Barbara Liang. lingual (dorsal lingual branch) The peritonsillar plexus (via the lingual and pharyngeal veins) return blood to the IJV.
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