It forms part of the azygos venous system. Gross anatomy. Os acromiale is relatively common, seen in ~8% (range 1-15%) of the population 1,2 and can be bilateral in 60% of individuals 5.. Clinical presentation. Aortic ductus diverticulum is a developmental outpouching of the thoracic aorta which may be mistaken for an acute aortic injury.. There is a significant association between negative ulnar variance and Kienbck disease, although the majority of people with negative ulnar variance do not have this condition. The base of the skull (or skull base) forms the floor of the cranial cavity and separates the brain from the structures of the neck and face. The axillary lymph nodes, also known commonly as axillary nodes, are a group of lymph nodes in the axilla and receive lymph from vessels that drain the arm, the walls of the thorax, the breast and the upper walls of the abdomen.. The horizontal fissure arises from the right oblique fissure and follows the 4 th intercostal space from the sternum until it meets the oblique fissure as it crosses right 5 th rib 1.. origin: branches of the 1 st part of the subclavian artery course: ascends posterior to the internal carotid artery in the transverse foramina of the cervical vertebrae branches. Supraclavicular zone Station 1 (left/right): low cervical, supraclavicular, and sternal notch nodes. Gross anatomy Relations and/or boundaries. They are usually asymptomatic. The parotid gland is wrapped around the mandibular ramus and extends to a position anterior and inferior to the ear. Elbow ossification occurs at the six elbow ossification centers in a reproducible order. Arteries of the shoulder The main artery of the shoulder is the axillary artery.It originates from the subclavian artery at the lateral margin of the first rib and enters the shoulder region. Gross anatomy. The second part of the axillary artery gives rise to two vessels. The order of appearances of the elbow ossification centers is highly reliable and in most individuals, is scaphoid; lunate; triquetrum; pisiform distal row. The vein is superior to the artery, and the intercostal nerve is inferior to it. The carpal bones, also known as the carpus (plural: carpi), are the eight bones of the wrist that form the articulation of the forearm with the hand.They are usually divided into two rows: proximal row. The temporal bone is situated on the sides and the base of the cranium and lateral to the temporal lobe of the cerebrum. 1st-4th cervical nerves).These are the roots (limbs) of the cervical plexus. The jugular foramen is commonly described in The temporal bone is situated on the sides and the base of the cranium and lateral to the temporal lobe of the cerebrum. Mnemonics for elbow ossification include CRITOE and CRITOL. The axillary artery supplies the content of the shoulder and the arm via its six branches that each originate from the trunk of the artery in the following order: origin: branches of the 1 st part of the subclavian artery course: ascends posterior to the internal carotid artery in the transverse foramina of the cervical vertebrae branches. Gross anatomy Origin. squamous part (temporal squama); petrous part (petrous pyramid); Gross anatomy Origin. location: between the orbit and the nasal cavity, within the ethmoid labyrinth of the ethmoid bone; blood supply: supraorbital, anterior and posterior ethmoidal and sphenopalatine arteries; innervation: anterior and posterior ethmoidal and supraorbital nerves Gross anatomy. There are five axillary lymph node groups, namely the lateral (humeral), anterior (pectoral), posterior (subscapular), It lies in the midline of the chest between the pleura of each lung and extends from the sternum to the vertebral column.. 1st-4th cervical nerves).These are the roots (limbs) of the cervical plexus. Here it curves vertically and superiorly to exit the sinus through its roof and become the cerebral part of the internal carotid artery. This initial division is into secondary or lobar bronchi, but subsequent divisions give rise to smaller and smaller bronchi and bronchioles until the smallest bronchioles connect to the innumerable alveoli.. Each segment has its own posterior inferior cerebellar artery (PICA). The thoracoacromial (acromiothoracic) artery is a primary trunk that gives rise to four other arteries. Gross anatomy. Course. Although there is a dual supply to the brain, each division shares a common origin. The mediastinum is a space in the thorax that contains a group of organs, vessels, nerves, lymphatics and their surrounding connective tissue. Gross anatomy. The left counterparts to these The lungs are the functional units of respiration and are key to survival.They contain 1500 miles of airways, 300-500 million alveoli and have a combined surface area of 70 square meters (half a tennis court). The 5th cervical nerve (i.e. The clavicular branch courses The superior vena cava receives blood from the upper half of the body via the left and right brachiocephalic veins , and the inferior vena cava from the lower half, through the common iliac veins. It is usually seen at the anteromedial aspect of the aorta at site of the aortic isthmus, where the ligamentum arteriosum attaches. They are affected by a wide range of pathology that results in a diverse range of illnesses. The horizontal fissure is highly variable and can be found to be incomplete or absent in some patients. The facial nerve and its branches pass through the parotid gland, as does the external carotid artery and retromandibular vein.The external carotid artery forms its two The mediastinum contains all the thoracic viscera except the lungs: heart and great Classification. The horizontal fissure is highly variable and can be found to be incomplete or absent in some patients. Here the artery is also referred to as the cavernous part. The parotid gland is wrapped around the mandibular ramus and extends to a position anterior and inferior to the ear. Summary. location: between the orbit and the nasal cavity, within the ethmoid labyrinth of the ethmoid bone; blood supply: supraorbital, anterior and posterior ethmoidal and sphenopalatine arteries; innervation: anterior and posterior ethmoidal and supraorbital nerves Gross anatomy. The acromioclavicular joint is between the small facet of the convex distal clavicle and flat anteromedial acromion.The articular surfaces are lined with fibrocartilage (like the sternoclavicular joint, it is an atypical synovial joint). Supraclavicular zone Station 1 (left/right): low cervical, supraclavicular, and sternal notch nodes. modified barium swallow is used to evaluate pharyngeal motility during swallowing; the procedure utilizes barium of varying consistencies given by mouth with video recording of swallowing They are usually asymptomatic. The thoracoacromial (acromiothoracic) artery is a primary trunk that gives rise to four other arteries. A useful mnemonic to remember the order of development is CRITOL or CRITOE (see video A collection of air cells (3-18 in number) separated by bony septa within each modified barium swallow is used to evaluate pharyngeal motility during swallowing; the procedure utilizes barium of varying consistencies given by mouth with video recording of swallowing The facial nerve and its branches pass through the parotid gland, as does the external carotid artery and retromandibular vein.The external carotid artery forms its two The left counterparts to these The second part of the axillary artery gives rise to two vessels. Gross anatomy. It is thought to increase the risk of shoulder impingement presumably due to increased mobility of the unfused secondary center. Within the sinus, the internal carotid artery travels anteriorly, in a horizontal manner until it reaches the anterior limit of the sinus. Although there is a dual supply to the brain, each division shares a common origin. location: paired sinuses within the body of the maxilla; blood supply: small arteries from the facial, maxillary, infraorbital and greater palatine arteries; innervation: superior alveolar, greater palatine and infraorbital nerves; Gross anatomy. The jugular foramen is the cranial foramen between the petrous temporal bone and occipital bone where the sigmoid sinus and inferior petrosal sinus drain into the internal jugular vein and where cranial nerves IXXI (glossopharyngeal, vagus, and accessory) exit.. superior border: lower margin of the cricoid cartilage; inferior border: strictly the IASLC defines this as the clavicles, which leads to ambiguity, particularly as the clavicle is mobile - a more definitive anatomical boundary is the thoracic inlet, i.e. The azygos vein is a unilateral vessel that ascends in the thorax to the right of the vertebral column, carrying deoxygenated blood from the posterior chest and abdominal walls. Gross anatomy. location: paired sinuses within the body of the maxilla; blood supply: small arteries from the facial, maxillary, infraorbital and greater palatine arteries; innervation: superior alveolar, greater palatine and infraorbital nerves; Gross 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.. The anterior intercostal branches of internal thoracic artery supply the upper five or six a branch of the costocervical trunk of the subclavian artery. Summary. Ulnar variance (also known as Hulten variance) refers to the relative lengths of the distal articular surfaces of the radius and ulna and is primarily a plain radiographic determination.. Ulnar variance may be: neutral (both the ulnar and radial articular surfaces at the same level) positive (ulna projects more distally); negative (ulna projects more proximally) The temporal bone is divided into several main parts/portions 1-3:. Ulnar variance (also known as Hulten variance) refers to the relative lengths of the distal articular surfaces of the radius and ulna and is primarily a plain radiographic determination.. Ulnar variance may be: neutral (both the ulnar and radial articular surfaces at the same level) positive (ulna projects more distally); negative (ulna projects more proximally) These are essentially the same, apart from the terminal letter which represents the External or Lateral epicondyle. The temporal bone is one of the most important calvarial and skull base bones. In the shoulder and arm, the brachial plexus gives rise to two nerves: the suprascapular nerve; the axillary nerve; When the brachial plexus is injured, these nerves are affected and some interesting clinical syndromes can be observed.. Arteries and veins. Epidemiology. The trachea divides at the carina forming the left and right main stem bronchi which enter the lung substance to divide further. Gross anatomy Origin. Gross anatomy Divisions: 2-part classification. Here it curves vertically and superiorly to exit the sinus through its roof and become the cerebral part of the internal carotid artery. There are five axillary lymph node groups, namely the lateral (humeral), anterior (pectoral), posterior (subscapular), Gross anatomy. Course. termination: combines with the contralateral vertebral artery to form the basilar Variant anatomy. It has superficial and deep lobes, separated by the facial nerve. There are five axillary lymph node groups, namely the lateral (humeral), anterior (pectoral), posterior (subscapular), of the given space. The axillary artery supplies the content of the shoulder and the arm via its six branches that each originate from the trunk of the artery in the following order: The trachea divides at the carina forming the left and right main stem bronchi which enter the lung substance to divide further. Gross anatomy Relations and/or boundaries. Major branches of the aorta include the brachiocephalic trunk, the left common carotid artery and the left subclavian artery. A useful mnemonic to remember the order of development is CRITOL or CRITOE (see video squamous part (temporal squama); petrous part (petrous pyramid); The facial nerve and its branches pass through the parotid gland, as does the external carotid artery and retromandibular vein.The external carotid artery forms its two The subclavian artery is a paired arterial vessel of the thorax.The right and left arteries have different origins; the left subclavian artery originates directly from the aortic arch, while the right subclavian artery originates from the brachiocephalic trunk.. They are affected by a wide range of pathology that results in a diverse range of illnesses. The azygos vein is a unilateral vessel that ascends in the thorax to the right of the vertebral column, carrying deoxygenated blood from the posterior chest and abdominal walls. The right coronary artery arises from its ostium in the right sinus of Valsalva, found between the aortic valve annulus and the sinotubular junction.. The temporal bone is one of the most important calvarial and skull base bones. Epidemiology. The superior vena cava receives blood from the upper half of the body via the left and right brachiocephalic veins , and the inferior vena cava from the lower half, through the common iliac veins. It is also the site of the majority (~90%) of post-traumatic aortic injuries as the Appearance Order. A useful mnemonic to remember the order of development is CRITOL or CRITOE (see video Gross anatomy. In relation to the anterior scalene muscles, the subclavian artery can be divided into three segments that After a sharply horizontal egress from the aorta, the proximal segment of the right coronary artery courses superiorly and rightward, posterior to the pulmonary trunk and underneath the right A collection of air cells (3-18 in number) separated by bony septa within each Summary. The jugular foramen is the cranial foramen between the petrous temporal bone and occipital bone where the sigmoid sinus and inferior petrosal sinus drain into the internal jugular vein and where cranial nerves IXXI (glossopharyngeal, vagus, and accessory) exit.. The carpal bones, also known as the carpus (plural: carpi), are the eight bones of the wrist that form the articulation of the forearm with the hand.They are usually divided into two rows: proximal row. Here it curves vertically and superiorly to exit the sinus through its roof and become the cerebral part of the internal carotid artery. radicular/spinal branches. The axillary artery supplies the content of the shoulder and the arm via its six branches that each originate from the trunk of the artery in the following order: trapezium; trapezoid; capitate; hamate; The names and order of these bones can be remembered through various It is thought to increase the risk of shoulder impingement presumably due to increased mobility of the unfused secondary center. Summary. medially by the aryepiglottic fold and arytenoid and cricoid cartilages; laterally by the thyroid cartilage and thyrohyoid membrane; superiorly by the level of the hyoid bone; inferiorly by the level of the inferior border of the cricoid cartilage 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.. 1 st rib 2 The shape of the acromion had been initially divided into three types (which was known as the Bigliani classification) 3, to which a fourth has been added 2.They are used as a standardized way of describing the acromion, as well as predicting to a degree the incidence of impingement.. The lungs are the functional units of respiration and are key to survival.They contain 1500 miles of airways, 300-500 million alveoli and have a combined surface area of 70 square meters (half a tennis court).