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Separate muscle bundles of the flexor digitorum superficialis
Separate muscle bundles of the flexor digitorum superficialis

... Background: The aim of this study was to elucidate the morphological characteristics of the muscle bundles of the flexor digitorum superficialis (FDS) attached to the intermuscular aponeurosis (IMA) and any related structure that could potentially compress the ulnar nerve. Materials and methods: Fif ...
Muscle Injuries
Muscle Injuries

... tendons of long extensors of toes and peronei muscles. Severe ..................................................................................................................20 Moderately Severe ...............................................................................................10 Moder ...
unilateral variation in biceps brachii muscle with four heads
unilateral variation in biceps brachii muscle with four heads

Anterior and Medial Thigh
Anterior and Medial Thigh

... 1. pectineus muscle a. arises from the upper surface of the superior ramus of the pubic bone b. inserts on the pectineal line below the lesser trochanter of the femur c. flexes the hip joint and medially rotates and adducts the thigh d. innervation - mostly by a branch of the femoral nerve or if pre ...
muscles of facial expression
muscles of facial expression

... supplies the buccinator muscle and the muscles of the upper lip and nostril . 4. The mandibular branch emerges from the anterior border of the glang and supplies the muscles of the lower lip. 5. The cervical branch emerges from the lower of the gland and passes forward in the neck below the mandible ...
Page 1 of 2 The Larynx, Basic Anatomy The larynx, or voicebox, is
Page 1 of 2 The Larynx, Basic Anatomy The larynx, or voicebox, is

... In the center of the larynx lie the vocal folds (also known as the vocal cords). The vocal folds are one of the most important parts of the larynx, as they play a key role in all three functions mentioned above. The vocal folds are made of muscles covered by a thin layer called mucosa. There is a ri ...
Article in PDF
Article in PDF

... and Pavin [8] and Le Minor [9]. There was no sesamoid bone found in medial head of gastrocnemius. Local mechanical forces associated with skeletal geometry, posture and muscular activity are related with development of fabella. It may be linked to intrinsic genetic factors. Presence of a fabella (Se ...
201 Practical 2 worksheet BLANK
201 Practical 2 worksheet BLANK

Hox11 genes are required for regional patterning
Hox11 genes are required for regional patterning

... have been the focus of significant research; however, much less is known about how these tissues are integrated into a functional unit appropriate for each body position and role. Previous reports have demonstrated crucial roles for Hox genes in patterning the axial and limb skeleton. Loss of Hox11 ...
Lower extremity-I
Lower extremity-I

Document
Document

... Today we will continue talking about the muscles of the lower limb and start with the joints, so let’s start… Muscles of the leg: They are less complex than the muscles of the gluteal and thigh regions, they are straight forward, also, they are classified into three groups; lateral, posterior and an ...
Pectoralis major inverse plasty for functional reconstruction in
Pectoralis major inverse plasty for functional reconstruction in

... pectoralis major are exposed, the latter to its insertion into the sternum. As much of the origin of the muscle as is required for the reconstruction is exposed. This includes the whole of the clavicular portion and approximately 5 cm of the superior part of the sternal portion (Fig. 1). The incisio ...
Chapter 9 Gross Anatomy and Functions of Skeletal Muscles
Chapter 9 Gross Anatomy and Functions of Skeletal Muscles

... Skeletal Muscle Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
muscles of the pectoral girdle
muscles of the pectoral girdle

... • Know the role of muscles of pectoral region in stabilizing the pectoral girdle. • Enumerate the muscle of pectoral girdle . • Describe the attachments of muscle of pectoral girdle, nerve supply and actions ( Pectoralis Major and minor, • Subclavius,Trapezius,Latissimus Dorsi,Rhomboid major and min ...
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... – Extraocular eye movements – Lateral gaze palsy raises the suspicion of increased intracranial pressure (e.g. ...
neuroanatomy of respiratory muscles
neuroanatomy of respiratory muscles

... • Fast-twitch (FT or Type II) fibers are identified by a quick contraction time and a low resistance to fatigue. Fast-twitch fibers are further divided into fast-twitch A (FT-A or Type IIA) and fast- twitch B (FT-B or Type IIB) fibers. • FT-A fibers have a moderate resistance to fatigue and represen ...
General Anatomy - Biblioteca RegieLive
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... Brachial plexus: It comes from the ventral rami of the spinal nerves C5-T1. The spinal nerves come out from the vertebral canal through the intervertebral foramen. When they come out, they divide into anterior (ventral) and posterior (dorsal) rami. Above the clavicle, the brachial plexus forms three ...
CHAPTER 8
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Vascular Anatomy of the upper limb
Vascular Anatomy of the upper limb

... • The Axillary Artery -­‐ Origin:  Begins  at  the  lateral  border  of  the  1st  rib  as  continuation  of  the   subclavian  artery.   -­‐ Continues  as  brachial  artery  at  lower  border  of  teres  major  muscle.   -­‐ Relation:  Is  c ...
Chapter 2 - Shoulder and Arm
Chapter 2 - Shoulder and Arm

... •Initially most commonly due to significant trauma (although it can occur in some people without significant trauma) •In time it becomes easier and easier for the joint to dislocate. •Most shoulder dislocations are anterior. ...
the flank incision and exposure of the kidney
the flank incision and exposure of the kidney

... iliac spine when the operating table is adequately flexed to ensure that this tension has been maintained. The lower leg is flexed to 90 degrees at the knee to prevent the body from rolling from side to side, but the upper leg is kept straight to maintain the tension of the incision site; pillows ar ...
Superior Head of the Lateral Pterygoid Muscle Inserting in
Superior Head of the Lateral Pterygoid Muscle Inserting in

... were excluded. The patients were informed of the nature of the study, and they agreed to the subsequent use of their images for these purposes. Images. The MRI study of the TMJ were obtained with the patient in maximum aperture without pain, with sagittal standard corrected, and with the T1 protocol ...
Slide 1
Slide 1

... This approach sometimes does not involve the nerves of the superficial cervical plexus and the skin around the shoulder area will therefore not be anesthetized. Although not yet evaluated by formal research, the experience of this author is that loss of resistance to air as well as nerve stimulation ...
213: HUMAN FUNCTIONAL ANATOMY: PRACTICAL CLASS 10
213: HUMAN FUNCTIONAL ANATOMY: PRACTICAL CLASS 10

Dissection Instructions of the Superficial Nerves of the Neck, Arm
Dissection Instructions of the Superficial Nerves of the Neck, Arm

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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.
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