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Superficial Facial Musculature March 2012
Superficial Facial Musculature March 2012

... across the endosomal membrane. This light chain then cleaves the synaptosome associated protein (SNAP-25), preventing exocytosis mediated acetylcholine release. Botulinum toxin injection into facial musculature is one of the most common procedures in the US as it decreases the appearance of hyperfun ...
Document
Document

... Arterial supply to: deltoid muscle, arm muscles near neck of humerus Runs horizontally from lateral side of axillary artery, beneath the coracobrachialis and short head of the biceps brachii, in front of the neck of the humerus  Upon reaching the intertubercular sulcus, it gives off a branch to sup ...
ONE1_02_Postural_Assessment
ONE1_02_Postural_Assessment

... regulate growth and function.  Muscles and their nerves…  A) provide stability to the trunk.  B) produce movement during physiologic activity. ...
Head_and_Neck_Review_Cranial_Nerves_part1_2012
Head_and_Neck_Review_Cranial_Nerves_part1_2012

... LEVATOR PALPEBRAE SUPERIORIS MUSCLE - ORIGIN FROM TENDINOUS RING - COMPOSED OF SKELETAL (CN III) & SMOOTH (SYMPATHETICS) MUSCLE PARTS DAMAGE INNERVATION PTOSIS = DROOPING EYELID ...
Powerpoint - Zill Anatomy Web Pages
Powerpoint - Zill Anatomy Web Pages

... LEVATOR PALPEBRAE SUPERIORIS MUSCLE - ORIGIN FROM TENDINOUS RING - COMPOSED OF SKELETAL (CN III) & SMOOTH (SYMPATHETICS) MUSCLE PARTS DAMAGE INNERVATION PTOSIS = DROOPING EYELID ...
Hyoid bone
Hyoid bone

... parts of the basihyoid. They are compressed laterally and the caudal end has a short cartilaginous prolongation which is connected with the rostral cornu of the thyroid cartilage of the larynx. 4-The ceratohyoids (small cornu): are short rods which are directed dorsally and rostrally from either end ...
Hyoid bone
Hyoid bone

... parts of the basihyoid. They are compressed laterally and the caudal end has a short cartilaginous prolongation which is connected with the rostral cornu of the thyroid cartilage of the larynx. 4-The ceratohyoids (small cornu): are short rods which are directed dorsally and rostrally from either end ...
View PDF - OMICS International
View PDF - OMICS International

... The posterior pharyngeal wall has chagrined the interventionists for long. Various workers have worked upon the area. Tsumori et al, in a study on 37 cadavers described various aspects of the superior constrictor muscle and suggested that it enables a smooth transition from the lingual stage to the ...
Unit 17: Temporal and Infratemporal Fossa
Unit 17: Temporal and Infratemporal Fossa

MONITORING OPERATIONS IN THE SKULL BASE
MONITORING OPERATIONS IN THE SKULL BASE

... How to record the response? • Recording of electromyographic (EMG) potentials • Mechanical recordings of muscle contractions • Recording of motor nerve CAP ...
REBOUND RESILIENCE OF TENDONS IN THE FEET OF SHEEP
REBOUND RESILIENCE OF TENDONS IN THE FEET OF SHEEP

... Another rough calculation supports this view. The area of tendon in any crosssection of the muscle is about 20 mm2 and the length of the muscle is about 10 cm. Hence if only the tendons stretch and if Young's modulus for tendon is io9 N m~a (Matthews & Ellis, 1968), the tensile stiffness of the musc ...
pelvic bones
pelvic bones

... origin: from a tendinous arch between the pubis and ischial spine on the internal surface of the pelvis ...
Gluteal Region, Posterior Thigh, and Popliteal Fossa
Gluteal Region, Posterior Thigh, and Popliteal Fossa

... The popliteal fossa contains the terminal branches of the sciatic nerve, the popliteal vessels and their branches, a few lymph nodes, and fat. It is diamond shaped. A. boundaries of the popliteal fossa 1. superiorly & medial - the semimembranous and semitendinous muscles 2. superiorly & lateral - th ...
Document
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... abnormality in patients with GO. This is due to sympathetic overaction of Muller’s muscle, increased sensitivity to circulating catecholamines, and fibrosis and functional shortening of the lid retractor muscles. In some patients, the upper eyelid can peak more laterally (temporal flare sign). This ...
anatomy_lec20_26_4_2011 - Post-it
anatomy_lec20_26_4_2011 - Post-it

... - They overlap each other like a telescope, thus the sup. one is the innermost and the lower one is the outermost. - Each one is fan-shaped, and has a narrow ant. end and a wide post. end that’s inserted (with it’s fellow on the other side) in the pharyngeal raphe. ( a raphe extending from base of s ...
Four headed triceps brachii muscle
Four headed triceps brachii muscle

... mesoderm invades the upper limb bud to further condense into ventral and dorsal muscle masses [8]. The triceps muscle is derived from dorsal muscle mass of upper limb bud and it could be during this period that accessory muscles may have formed. Clinically, close proximity of the tendon of fourth he ...
Chapter 18: Face - Anatomy
Chapter 18: Face - Anatomy

... eventually the occipital belly of the occipitofrontal muscle. In relation to the auricle, some sensory fibers may supply the skin of the external auditory meatus. The evidence for this is the clinical presentation of vesicles in herpes zoster oticus (Ramsay Hunt syndrome). Also arising from the majo ...
Flexor
Flexor

... It is my opinion that you are most likely to save these veins if you begin the removal of skin and superficial fascia from the most distal site, i.e., the dorsal hand or carpus. The veins in this region drain into the basilic and cephalic veins. So, once these veins are found in this region, it is m ...
articulators
articulators

... • Vowels have to form the vocal tract into a tube with one ([],[a, ]) or two (most other vowels) main cavities. For this the tongue dorsum (which comprises the mass of the tongue) is moved up and down, backwards & forwards, • Consonants have to form an obstruction to the airflow. For this any cons ...
Duplicated anterior belly of the digastric muscle
Duplicated anterior belly of the digastric muscle

... bilateral anterior belly of the digastric muscle in the neck may be due to a deficiency in the differentiation of the mesoderm of the first pharyngeal arch of both sides or the abnormal migration of neural crest cells.(3) The complexity of sequential development naturally gives rise to countless p ...
Course of the Median Nerve
Course of the Median Nerve

... This document was created by Alex Yartsev (dr.alex.yartsev@gmail.com); if I have used your data or images and forgot to reference you, please email me. ...
Clinical anatomy of the human female pelvic overview Objectives
Clinical anatomy of the human female pelvic overview Objectives

... 12. Posterior two ligaments called uterosacral ligament and arise from the level of internal os and inserted into the sacrum. 13. This arrangement leaves a potential cavity behind the uterine wall called the pouch of Douglas. 14. The rectum is usually fixed to the sacrum by pelvic peritoneum and sep ...
The Humeral Head in Detail
The Humeral Head in Detail

Abdominal Walls and Inguinal Region
Abdominal Walls and Inguinal Region

... of  tension run  in  a  basically  horizontal  direction.    Thus,  horizontal  surgical  incisions  through the abdominal skin lie parallel to the tension lines and tend to provide a better  cosmetic result when healed than vertical incisions.  ...
the neurovascular compression due to the third head of biceps
the neurovascular compression due to the third head of biceps

... stage of development, the muscle primordia within the different layers of the arm fuse to form a single muscle mass [23]. Langman stated, however, that some muscle primodia disappear through cell death despite the fact that cells within them have differentiated to the point of containing myofilament ...
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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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