Serratus posterior muscles Kenhub Vertebral artery O SNC consiste em dois rgos que so contnuos um com o Although there is a dual supply to the brain, each division shares a common origin. All content published on Kenhub is reviewed by medical and anatomy experts. The dorsal scapular nerve arises just above the clavicle, from the proximal part of the anterior ramus of C5 spinal nerve It pierces the scalenus medius muscle and descends between the levator scapulae on one side and serratus posterior superior and scalenus posterior muscles on the other It then runs across the medial scapular region, along the anterior border of The left counterparts to these Overview The thorax is the region of the body extending from the base of the neck and thoracic inlet (the latter being at the supraclavicular fossae) to the diaphragm (marked anteriorly by the xiphisternal joint).. The main function of the posterior communicating artery is to provide an alternative route to the brain blood supply in case there is a blockage of the internal carotid or vertebral arteries. The umbilical artery is a paired vessel that arises from the internal iliac artery.During the prenatal development of the fetus, it is a major part of the fetal circulation.. After birth, the distal part of the artery obliterates and becomes the medial umbilical ligament.The proximal part of the artery still remains functional, providing a blood supply for the superior The vertebral artery gives rise to anterior and posterior spinal arteries. The broad ligament of the uterus stabilizes the uterus by connecting it to the pelvic wall. The thoracic cage, also known as the rib cage, is the osteocartilaginous structure that encloses the thorax.It is formed by the 12 thoracic vertebrae, 12 pairs of ribs and associated costal cartilages and the sternum.. Coccygeus is a triangular musculotendinous sheet of muscle containing an apex and a base. Winged scapula and rhomboid palsy are clinical pathologies associated with the rhomboids. Kenhub Mediastinum Levator scapulae muscle (Musculus levator scapulae) Levator scapulae is a long and slender muscle that anatomically belongs to the superficial layer of extrinsic muscles of the back.Functionally, however, it is considered to be a muscle of scapular motion along with the rhomboids, serratus anterior, serratus posterior superior and inferior muscles. Kenhub Orientation of cross sections Before diving into the deep end, its important to understand the general orientation of axial anatomy. On the right-hand side of the body, the brachiocephalic trunk arises from the arch of the aorta and bifurcates at the upper border of the 2nd right sternoclavicular joint.It gives rise to the right subclavian artery as well as the right common carotid artery.. Triceps surae muscle (Musculus triceps surae) The triceps surae muscle is a three-headed muscle in the posterior compartment of the leg.It consists of two muscles, gastrocnemius and soleus.Along with the plantaris muscle, the triceps surae composes the superficial flexor group of the leg, which forms the bulk on the back of the calf.. Latissimus dorsi Abdominal wall Rhomboids The vertebral line of pleural reflection is a more rounded turn where the costal pleura becomes the mediastinal pleura posteriorly. Subclavian artery The main Thoracic cage The vertebral artery is the first branch of the subclavian artery. The vertebral artery supplies the upper spinal cord, brainstem, cerebellum and posterior part of the brain. Hip joint (Articulatio coxae) The hip joint is a ball and socket type of synovial joint that connects the pelvic girdle to the lower limb. Within the thoracic cavity is the mediastinum.The mediastinum is the region of the thorax between the lungs.It extends from the level of the first rib, superiorly, The vertebral artery usually enters the transverse foramen at C6. Kenhub does not provide medical advice. The basilar artery is a relatively large, robust blood vessel located in the posterior cranial fossa. Trapezius muscle This is one of two arterial circuits (the other being the anterior circulation) that delivers up to 15% of the total cardiac output to the brain tissue.This high demand for oxygenated blood is based on the diverse Kenhub The vertebral column is divided into five regions and consists of 33 vertebrae interlaced Hip joint Review of major arteries of the thigh Once the abdominal aorta has descended through the diaphragm at vertebral level T12, the vessel gives branches to the viscera of the abdomen, namely the intestines and other organs.. At vertebral level L4, the aorta bifurcates, into the two common iliac arteries.These then pass obliquely laterally, and give off a branch to supply The urinary system consists of 4 major organs; the kidneys, ureters, urinary bladder and the urethra.Together these organs act to filter blood, remove waste products, create urine and transport urine out from the body. Segmental arteries, such as the deep cervical, ascending cervical, and posterior intercostal give rise to 31 pairs of radicular arterial branches which supply the roots of spinal nerves. Latissimus dorsi muscle (Musculus latissimus dorsi) The latissimus dorsi muscle (AKA: 'the lats muscle' or 'the lats') is the widest muscle in the human body. Kenhub The efferent fibres of the red nucleus leave from the structures dorsomedial region. They include: The serratus posterior superior muscle; The serratus posterior inferior muscle; Together, these muscles comprise the intermediate layer of the extrinsic musculature of the back. Levator Scapulae Kenhub does not provide medical advice. Rotatores breves and longi muscles (Musculi rotatores breves et longi) Rotatores muscles are a set of short muscles located laterally along the vertebral column, attaching between the transverse and spinous processes of thoracic vertebrae.As a result, the rotatores function as stabilizers, extensors and rotators of the spine. The apex originates from the pelvic surface of the ischial spine, including the tip.Most of the muscle fibers insert via its base into the lateral margins of the coccyx and the inferior end of sacrum, at the level of the fifth segment (S5).. Internal thoracic artery (Arteria thoracica interna) The internal thoracic artery (internal mammary artery) is a long, paired vessel that originates from the proximal part of the subclavian artery.It runs inferomedially and enters the thoracic cage deep to the clavicle and the first rib.Terminating at the level of the sixth rib, it divides into two terminal branches: superior Cross sectional anatomy The trunk is composed of several regions called the thorax, abdomen, pelvis, and back. It begins from the aortic orifice found at the base of the left ventricle.It is separated from the ventricle by the aortic valve, that consists of three semilunar cusps; the right, left and posterior cusp.The aorta is approximately 30 cm long, spanning almost the entire length of the trunk. Longissimus muscle (musculus longissimus) The longissimus muscle is a long intrinsic muscle of the back.Along with spinalis and iliocostalis, these three muscles comprise the erector spinae group.The erector spinae is a large musculotendinous complex that runs along the entire length of the vertebral column and comprises the intermediate layer of the intrinsic, or Vertebral Artery Pleural cavity The arterial supply to trapezius varies depending on the level. Both rhomboids receive innervation from the dorsal scapular nerve and supplied by the dorsal scapular artery. Aorta The levator The deep layers of the anterolateral abdominal wall are supplied by the following: Superior epigastric artery, a terminal branch of the internal thoracic artery. These tracts are derived from the magnocellular and parvocellular regions.The magnocellular component gives rise to fibers of the rubrospinal tract.In humans, the magnocellular part of the red nucleus is smaller than in other mammals; the size of the rubrospinal tract is The urinary system is also called the excretory system, because held within the urine are the various excreted products, including by-products Basilar artery It courses superiorly along each side of the neck region and ultimately merges with its counterpart at the pontomedullary junction to form the basilar artery. The vertebral column (spine or backbone) is a curved structure composed of bony vertebrae that are interconnected by cartilaginous intervertebral discs.It is part of the axial skeleton and extends from the base of the skull to the tip of the coccyx.The spinal cord runs through its center. Spinal cord The ophthalmic artery, which supplies blood to the retina of the eye, and the second cranial nerve (CNII), the optic nerve with its dural sheath, which sends visual information from the eye to the brain to be interpreted. The lumbosacral joint is a set of two articulations; an anterior intervertebral joint and two zygapophyseal (facet) joints:. Kenhub The serratus posterior muscles are two paired muscles located in the upper and lower back. They are branches of the femoral artery and supply the inferior part of the wall. Cervical Anatomy O sistema nervoso central (SNC) a diviso do sistema nervoso cuja funo analisar e integrar vrias informaes intra e extrapessoais, assim como gerar uma resposta coordenada a esses estmulos. axis Kenhub The descending (upper) part of the muscle is supplied by transverse muscular branches arising from the occipital artery (branch of the external carotid), which passes along the deep surface of the muscle. In this joint, the head of the femur articulates with the acetabulum of the pelvic (hip) bone.. Umbilical artery Kenhub Urinary system The vertebral arteries work their way along both sides of the neck, connecting the subclavian arteries in the shoulder up to the cranium. Internal thoracic artery The function of the splenius cervicis is to coordinate the position Anatomically, lordosis is the normal inward (anterior) curvature of cervical and lumbar regions of the vertebral column. It is the main blood vessel that forms the posterior circulation of the brain.. These structures include the pulmonary artery and vein, the bronchi, nerves and lymphatics. Human anatomy The thoracic cage takes the form of a domed bird cage with the horizontal bars formed by ribs and costal cartilages. Variants in rhomboid musculature have been found but are very rare. Neuroanatomy through clinical cases. 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