Nerve fiber means related to axon and myelin sheath (covering of axon to boost the conduction velocity). Many a times cell body or cytoplasm sits some where and has its axon approaching feets away. The axons are grouped together and go through into the pipe sort of structure. It may either transmit info to brain (sensory) or from brain (motor). Nerve fiber Classification: Nerves can be separated by afferent, efferent, and mixed based on the direction of signal transmission in the …
Category: Anatomy
The maxillary artery also referred as an internal maxillary artery, it is one of the two terminal divisions between the continuations external carotid artery. The second terminal branch is called superficial temporal artery. That is why the maxillary artery can be described as one of the continuations external carotid artery, and supplies the oxygenated blood maxilla and mandible, jaw bones, deep facial areas, cerebral dura mater and the nasal cavity respectively. Hence it is referred a blood vessel which assists …
The Aorta is the largest artery of the human body, also referred it as a pumping chamber, because it is the main source through which the heart pumps the oxygenated blood via the whole body. It is specifically beginning at the top of the left ventricle and extending down to the end of the abdomen, but now it is going to split further into two arteries. However, the heart pumps blood from the left ventricle into the aorta by the …
Hemoglobin are present in the red blood cells and is a necessary chemical which supplies oxygen from lungs to rest of the body. It is a protein having a quarternary structure which composes iron and performs the significant function of transporting oxygen through RBCs in blood in mammals as well as other animals. It also fulfills distinct effect modulation and gas transport duties, although which vary from species to species and most probably is altogether different in invertebrates (having no backbone). …
An opening or Orifice in the skeleton through which some structures emerges such as, nerves, arteries, veins, muscles and ligaments pass. There is multiple such foramen locates on the lower behalf of the skull that acts as pathways for the different structures which pass via them. So here we listed out the different foramen seen in the skull and also the structures running through them. There is a lot more foramen probably be small and big which have structures enter …
The temporal fossa is a shallow depression on the temporal lines and one of the be massive marks on the skull. The occipital bones, including, temporal bone, sphenoid bone, parietal bone and the frontal bone put up to its concave wall. It is superior to the infratemporal fossa and terminating beneath the level of the zygomatic arch. Temporal Fossa Anatomy: However, including superiorly and posteriorly the temporal fossa is bordered by the superior temporal line. The inferior border moves with …
The posterior tibial artery runs down the leg, exactly below the knee. Its branches emerge off from the popliteal artery and supplies filtered blood to the leg’s posterior compartment and some portion of the foot. During the course of this blood vessel, it divides into varies branches. This incorporates the fibular, medial plantar, and lateral plantar arteries. While the artery delivers oxygenated blood, the poster tibial vein drains oxygen-depleted blood and then forces it back toward the heart and lungs …
The internal thoracic artery was previously known as the internal mammary artery and is an artery situated anteriorly in the thorax. It arises from the very first part of the subclavian artery. The left subclavian artery approach directly off the arch of the aorta, while on the right side of the human body, the brachiocephalic artery splits, giving rise to the right subclavian artery, and as well the right common carotid artery. The subclavian artery turns out to be axillary …
The intercostal nerves are basically the ventral rami of the very first eleven thoracic spinal nerves are called as the intercostal nerves, while that of the twelfth thoracic nerve is known as the subcostal nerve and lies in the abdomen cavity. Course of Intercostal Nerves: The intercostal nerves are actually the prominent part of the somatic nervous system, that move into the corresponding intercostal spaces lying between the parietal pleura and the posterior intercostal membrane. They, then run forward, lying …
The medial longitudinal fasciculus is basically a fine group of axons or longitudinal bundle present just a little above the midline of the brainstem or brain stem, composing of both ascending and descending batch of fibers that originates from various areas of the body. It is further associated with three different muscular connection called, oculomotor nerve, trochlear nerve, and abducens nerve. Medial longitudinal fasciculus Origin: Medial longitudinal fasciculus was very first discovered by the neurologist Benedict Stilling. Later, its name was gradually changing and …