welcome friends today's topic in the viper house of anatomy is a humorous one the another name of the humorous is a funny one now it is a example of the typical long and as it is a typical long bond it is having an upper and lower and intervening sound first we will see the side determination of the universe its upper end is globular and contain the rounded head whereas the lower end is flattened and zero positively so it is expanded from the side to side the second point the head rounded head is facing immediately the third point the upper end contain the laser tubercle and the greater river in which this laser tubercle is facing anteriorly from its upper end so the given bond in my hand is off of left next part is the feature and the attachment of the universe now the humerus is divided into three part operand soft and lower end we will see one by one first we will talking about the opponent the upper end the parts of the upper the first part the hair the head is rounded and it will form the one third of the sphere the head will articulate with the glenoid cavity of the scapula to form the glenohumeral joint or the shoulder joint which is a ball and socket type of the synonym now this anatomical knee provides attachment of a capsular ligament of the shoulder joint except superiorly and immediately the third part the surgical name surgical need is the junction between the upper end and the sound the most important point of the surgical aid is that it is related to the posterior circumflex femoral vessels and axillary number the third part fourth part in the parent morphologically now the morphological neck lies 0.5 mm centimeter above the surgical neck and it will marks the junction between the upper epiphysis and the diaphysis of a humerus the next part in the upper end is a laser tubercle laser tubercle is a small prominent area facing anteriorly from the upper end of the humerus it will provides attachment of a subscapularis muscle next part is a greater giver greater tubercle will form the literal part of the operand now the posterior electrical part of a greater tubercle it will mark by the three impression upper middle and the lower now these three impressions provide the insertion of the three muscles that is from above downward supraspinatus infraspinatus and tedious minor you can remember the mnemonic c s i g the next part is a sulcus that is inter tubercular sulfur that is also known as a bicycle group now the bicipital group below it is marked by on the other side the medial lip and the lateral lip which are the nothing but the downward continuation of a laser tubercle and the greater tubercle respectively this intertubercular surface is breached by the transverse humerus regard and it lodges the long head of biceps brachii muscle along with its synovial seat and the ascending branch of anterior circumflex numeral artery now the attachment related to the bicipital group its flow receives insertion of a lattice inverse towards the muscles the medial border receives the insertion of a series major muscle and the literal water receives the insulin or insertion of pectoralis major versus so you can remember the pneumonia the lady between two major ladies means the lattice must dorsi in the middle part in the floor and two major the previous major being medially and pectoralis major being literally the second part of the humerus is such now the shaft is cylindrical in the upper part and the triangular in the lower part roughly overall we will assume it is triangular in the cell so it is having three border and three surface first we will talk about the border the three border are first anterior water second medial water and third lateral water we will say one by one the anterior border extending from the lateral lip of the bicipital groove above in the middle it will form the anterior margin of a deltoid tuberosity and in the lower part it is rounded and ends just above the radial fossa the second medial order medial water is prominent in the lower part where it forms the medial supracondylar ridge in the middle part it is marked by the rough strip and in the upper part it will form the medial leave of a bicycle group now this rough strip in the middle of a medial border receives the insertion of a corico brake carrier the third border is a little water again it is very well demarcated in the lower part where it forms the lateral supracondylar bridge in the middle part it is interrupted by the spinal group or the radial group and in the upper part it will transfer up to the posterior part of the greater tubercle so these are the three water now we will see the three surfaces three surfaces the first one is an anteromedial surface the surface that lies between the medial water and the anterior water the second surface is an anterior lateral surface the surface lies between the anterior border and little water now the this two surface enteromedial as well as anterolateral in the lower part here it will give the origin of a brachialis muscle now in the anterolateral surface in its own middle part it is marked by the rough v-shaped tuberosity which is known as a deltoid tuberosity now this deltoid tuberosity receives the insertion of a deltoid muscle just behind the deltoid tubercity this surface is traversed by the deltoid uh sort of radial group or the spiral group which lodges the profunda brachii vessels and the radial knob the large surface is a posterior surface that is lies between the medial water and the lateral water now the posterior surface in its upper part is marked by the oblique reach which gives the origin to the lateral head of the triceps required muscle and the lower part of the posterior surface gives the origin of a medial head of the tricep brachii muscle the last part in the humerus is its lower the lower end is expanded from the side to side it is having two parts the articular part and the known articulation non articular part first we will talk about the articular part the in the articular part first it is having the small rounded part which is which is known as a capitulum or the little head now this particular part will articulate with the head surface surface of the head of the radius the second particular part is a pulley same trochlea which lies just medium to the capillary now this policy propeller will articulate with the trochlear nodes of a lung now this uh in the trochlea its medial and is six millimeter downwards then its literal end and this uh formation is responsible for the formation of a carrying angle which is 163 degree now we will talking about the non-articular part the first radial force radial fossa is a small depression that lies above the capitulum anteriorly now this radial fossa will accommodate the head of the radius in the full flexion of the elbow joint the second is a coronoid forcer that lies just above the trochlea anteriorly now this coronoid force are will articulate with the coronoid process of the allah in the full flexion of the ankle joint the third non-articular part is a polycronal forcer that lies posteriorly and it will articulate with the tip of the oled polygonal process of the ulnar during the full extension of ambo joint the fourth part medial epicondyle the medial epicondyle is a promenade area in the medial part of a lower end same literally there is a literal epicondyle but it is less prominent the six median supracondylar trace it is a sharp reach that lies just above the medial epicondyle of the humerus same way literally there is a literal supracondylar breast now we will see the attachment related with the lower end the capsular ligament of the elbow joint is attached above the margin of a radial fossa coronoid fossa anteriorly polychronic posteriorly and it will leaves the medial and the little epicondyle outside means it will attach along the margin of the capitula as well as properly now the attachment on the medial epicondyle the medial epicondyle gives origin to the superficial flexure muscle of the forearm that point is known as a common fracture origin the lateral epicondyle gives origin to the superficial extensor muscle of the forearm that is known as a common extensor origin additionally the lateral epicondyle give origin to the angoneous muscle from its posterior part now next medial supracondyle will reach in its lower part just above the medial epicondyle it will use the regime of humeral head of chromated serious muscle now next last little supracondylar breach from its upper two third part it will give origin to the brachioradialis and from its lower one third it will give origin to the extensor carpi radialis longus muscle this is about now the applied anatomy of the humerus the first one the common side of the fracture in the ingress are the surgical neck the sharp and the supracondylar region now when the structure in the supracondylar region occurs it may compress the brachial artery which passes in front of the elbow so the compression of the brachial artery will demonize the arterial supply of the muscle of a forearm and it will lead to the walkman's ischemic contracture now when the fracture occur what will happen first we will see the normal anatomy in the full flexion of the elbow joint is two epicondyle medial and the lateral and the teeth of the olecranon process will form the triangular area in the flexion of the help when the elbow is extended this three line three point allies into one line so when the fracture of the supra contains the region of the humerus circle this uh this arrangement will be disrupted the third part the humerus is commonly dislocated inferiorly now at the end we will see the credit question of this bond the first current question which are the three nodes which is directly related to the humerus the first is a axillary noun around the surgical need of the humerus second the radial now that is in the spiral group or the radial fossa the third is a median or ulna now that is behind the medial epicondyle of the humerus the second kind of question the contained of the bicipital glue these are the long head of the biceps brachii muscle along with its synovial seat ascending branch of the anterior circumflex in the artery the third question why the carrying angle is formed the carrying angle is formed because the trochlea of the humerus its medial flinch or the medial age is six millimeter downwards than its lateral edge and this will uh responsible for the formation of the carrying angle so when the elbow is flat the humerus and the ulna comes to lies in the same plane when the elbow is being extended because of this medial flange which is six meter mm downwards the forearm will get deviated and it will form an angle outside which is 163 degree the important of the carrying angle is that it will prevent the rubbing of your forearm against the trunk while we are walking it's all about the humerus now the more videos related to the anatomy you can 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