Skeletal Muscle Anatomy
... words “origin” and “insertion” indicate where muscles are attached to bones in relation to the most common movement at a joint. The origin of a muscle is on the bone that is usually relatively stationary, and the insertion of the is on the bone that is most often moved. For example, in flexion of th ...
... words “origin” and “insertion” indicate where muscles are attached to bones in relation to the most common movement at a joint. The origin of a muscle is on the bone that is usually relatively stationary, and the insertion of the is on the bone that is most often moved. For example, in flexion of th ...
20 the humerus - Rush Pin, LLC
... the wound to guide the reduction and the pin driven home. The pin should be of sufficient length to extend well into the distal fragment. The head of the pin should be stress relieved and left slightly prominent to simplify later removal. Too long a pin will cause distraction or extend high enough a ...
... the wound to guide the reduction and the pin driven home. The pin should be of sufficient length to extend well into the distal fragment. The head of the pin should be stress relieved and left slightly prominent to simplify later removal. Too long a pin will cause distraction or extend high enough a ...
Four-headed biceps brachii muscle with variant course
... into the short head. In most of the studies, supernumerary heads joined with common bicipital tendon [11–13]. If extra heads are large enough, they may give additional strength to biceps [15]. In the present case third head constituted 15.69%, and the fourth head 2.94% of total circumference of all ...
... into the short head. In most of the studies, supernumerary heads joined with common bicipital tendon [11–13]. If extra heads are large enough, they may give additional strength to biceps [15]. In the present case third head constituted 15.69%, and the fourth head 2.94% of total circumference of all ...
AACE/ACE Principles of Endocrine Neck Sonography Course
... Thyroid Echogenicity Normal thyroid: High intensity homogeneous echo pattern with little ...
... Thyroid Echogenicity Normal thyroid: High intensity homogeneous echo pattern with little ...
Muscular System - Atypically Relevant
... A histological description of each of the three muscle types was presented in chapter 4 and should be reviewed at this time. Cardiac muscle is involuntary and is discussed further in chapter 13 in the autonomic nervous system and in chapter 16, in connection with the heart. Smooth muscle is widespre ...
... A histological description of each of the three muscle types was presented in chapter 4 and should be reviewed at this time. Cardiac muscle is involuntary and is discussed further in chapter 13 in the autonomic nervous system and in chapter 16, in connection with the heart. Smooth muscle is widespre ...
TITLE: Rhytidectomy Anatomy:
... while imbrication involves excising a block of SMAS and approximating the cut edges to tighten this layer. Imbrication does not provide any additional benefit according to cadaver studies by Webster, and involves an additional step. Proponents of imbrication feel that plication results in SMAS redun ...
... while imbrication involves excising a block of SMAS and approximating the cut edges to tighten this layer. Imbrication does not provide any additional benefit according to cadaver studies by Webster, and involves an additional step. Proponents of imbrication feel that plication results in SMAS redun ...
Anatomy of Oesophagus
... At 40 cms where it pierces the diaphragm where a physiological sphincter is sited (LES) These areas are where most oesophageal foreign bodies become entrapped. The most common site of esophageal impaction is at the thoracic inlet. Defined as the area between the clavicles on chest radiograph, this ...
... At 40 cms where it pierces the diaphragm where a physiological sphincter is sited (LES) These areas are where most oesophageal foreign bodies become entrapped. The most common site of esophageal impaction is at the thoracic inlet. Defined as the area between the clavicles on chest radiograph, this ...
Vocal Fold Hypomobility - Philadelphia Voice Center
... a full range of motion of the arytenoids. If this cartilaginous joint becomes immobile, the arytenoid cartilage can not move well. Limited mobility of the arytenoid cartilage impairs the mobility of the vocal folds. The muscles of the larynx attach to the cartilages in different locations. The main ...
... a full range of motion of the arytenoids. If this cartilaginous joint becomes immobile, the arytenoid cartilage can not move well. Limited mobility of the arytenoid cartilage impairs the mobility of the vocal folds. The muscles of the larynx attach to the cartilages in different locations. The main ...
Variation of Nerve to Flexor Hallucis Brevis
... in 40 of 45 patients with complete division of the median or ulnar nerves. Falconer and Spinner2 performed high magnification dissections of ten specimens and found the RicheCannieu anastomosis in three. While the purpose of this study was to determine the presence of Hallopeau’s nerve, we can not c ...
... in 40 of 45 patients with complete division of the median or ulnar nerves. Falconer and Spinner2 performed high magnification dissections of ten specimens and found the RicheCannieu anastomosis in three. While the purpose of this study was to determine the presence of Hallopeau’s nerve, we can not c ...
Anatomy of the temporomandibular joint
... fibers elevate the mandible vertically. Contraction of the middle fibers elevates and retrudes the mandible. The posterior fibers retract the mandible after it has been protruded. Since the angulations of its muscle fibers vary, the temporal muscle is capable of coordinating closing movements. Thus, ...
... fibers elevate the mandible vertically. Contraction of the middle fibers elevates and retrudes the mandible. The posterior fibers retract the mandible after it has been protruded. Since the angulations of its muscle fibers vary, the temporal muscle is capable of coordinating closing movements. Thus, ...
inguinal ligament, rings, and canal - veterinaryanatomy
... between the two rings is the inguinal canal. In the dog, the two openings lie one directly internal to the other and the inguinal canal hardly exists. • The inguinal rings and canal allow intraabdominal structures to pass through the abdominal wall, from the abdominal cavity to a subcutaneous positi ...
... between the two rings is the inguinal canal. In the dog, the two openings lie one directly internal to the other and the inguinal canal hardly exists. • The inguinal rings and canal allow intraabdominal structures to pass through the abdominal wall, from the abdominal cavity to a subcutaneous positi ...
Match the action described with the muscle given below
... Three weeks after a shoulder (glenohumeral) joint dislocation the following Of the muscles that act on the shoulder joint, the one that is usually considered to symptoms were observed: weakness in abduction of the arm and loss of the normal initiate abduction of the arm is the: rounded contour of th ...
... Three weeks after a shoulder (glenohumeral) joint dislocation the following Of the muscles that act on the shoulder joint, the one that is usually considered to symptoms were observed: weakness in abduction of the arm and loss of the normal initiate abduction of the arm is the: rounded contour of th ...
Embryology Lec5 Dr.Ban The branchial apparatus =The branchial
... The 1st pharyngeal arch appears at about the beginning of the 4th week and others are added more caudally later such that there are ultimately 5 arches by the end of the 4th week; the 5tharch fails to form, so the arches are numbered 1, 2, 3, 4, and 6. The entire apparatus consists of paired pharyng ...
... The 1st pharyngeal arch appears at about the beginning of the 4th week and others are added more caudally later such that there are ultimately 5 arches by the end of the 4th week; the 5tharch fails to form, so the arches are numbered 1, 2, 3, 4, and 6. The entire apparatus consists of paired pharyng ...
Dissection of the Anterior Compartment of the Forearm
... The ulnar nerve enters the forearm from behin the medial epicondyle of the humerus. Note that it crosses the medial ligament of the elbow joint and passes between the two heads of the flexor carpi ulnaris. Trace the nerve downward between the flexor carpi ulnaris and the flexor digitorum profundus m ...
... The ulnar nerve enters the forearm from behin the medial epicondyle of the humerus. Note that it crosses the medial ligament of the elbow joint and passes between the two heads of the flexor carpi ulnaris. Trace the nerve downward between the flexor carpi ulnaris and the flexor digitorum profundus m ...
UNILATERAL VARIATION IN THE TERMINATION OF
... chemorepulsant in highly coordinated site-specific fission. Tropic substances such as brain-derived neurotropic growth factor, c-kit ligand, neutrin-1, neutrin-2, etc. attract the correct growth cones or support the viability of the growth cones that happen to take the right path. The significant va ...
... chemorepulsant in highly coordinated site-specific fission. Tropic substances such as brain-derived neurotropic growth factor, c-kit ligand, neutrin-1, neutrin-2, etc. attract the correct growth cones or support the viability of the growth cones that happen to take the right path. The significant va ...
Skeletal muscle
Skeletal muscle is a form of striated muscle tissue which is under the voluntary control of the somatic nervous system. It is one of three major muscle types, the others being cardiac muscle and smooth muscle. Most skeletal muscles are attached to bones by bundles of collagen fibers known as tendons.Skeletal muscle is made up of individual muscle cells or myocytes, known as muscle fibers. They are formed from the fusion of developmental myoblasts (a type of embryonic progenitor cell that gives rise to a muscle cell) in a process known as myogenesis. Muscle fibres are cylindrical, and multinucleated.Muscle fibers are in turn composed of myofibrils. The myofibrils are composed of actin and myosin filaments, repeated in units called sarcomeres, the basic functional units of the muscle fiber. The sarcomere is responsible for the striated appearance of skeletal muscle, and forms the basic machinery necessary for muscle contraction. The term muscle refers to multiple bundles of muscle fibers called fascicles. All muscles also contain connective tissue arranged in layers of fasciae. Each muscle is enclosed in a layer of fascia; each fascicle is enclosed by a layer of fascia and each individual muscle fiber is also enclosed in a layer of fascia.