Presentation on the topic - Great sephanous vein
in this presentaion all the topis like course , tributaries ,clinical aspects etc. of vein are covered.
content source - MBBS BOOKS OF 1ST YEAR
Presentation on the topic - Great sephanous vein
in this presentaion all the topis like course , tributaries ,clinical aspects etc. of vein are covered.
content source - MBBS BOOKS OF 1ST YEAR
Vertebral Column is a complex structure of the Human body. It does not only provides protection for spinal cord but also provide mobility and stability of the trunk and the extremities. To learn structure of Vertebral Column and more Online Medical Resource, Visit at http://gisurgery.info
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Here is the full curriculum of Anatomy of Spinal Cord Injury. This presentation was made by me at my student life where I have done a lot of researchs, findings and notes.
Please correct me if you find anything wrong by a responsive comment !
I wish you all the very best!
Skeleton system- bones and their number with detailed description.bhartisharma175
this ppt consist of skeleton system and its types. it consist of every individual bone and their number in adult human being. easy to understand for students as well as for teachers.
The cervical spine functions to provide mobility and stability to the head while connecting it to the relatively immobile thoracic spine. The movement of nodding the head takes place predominantly through flexion and extension at the joint between the atlas and the occipital bone, the atlanto-occipital joint.
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this lecture describes the anatomy of bach and details of anatomical variations of vertebrae with related disorders.
the vertebral column consists of seven cervical vertebrae, tweleve thoracic vertebrae, five lumbar vertebrae, sacral vertebrae, and five fused coccygeal vertebrae.
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The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Safalta Digital marketing institute in Noida, provide complete applications that encompass a huge range of virtual advertising and marketing additives, which includes search engine optimization, virtual communication advertising, pay-per-click on marketing, content material advertising, internet analytics, and greater. These university courses are designed for students who possess a comprehensive understanding of virtual marketing strategies and attributes.Safalta Digital Marketing Institute in Noida is a first choice for young individuals or students who are looking to start their careers in the field of digital advertising. The institute gives specialized courses designed and certification.
for beginners, providing thorough training in areas such as SEO, digital communication marketing, and PPC training in Noida. After finishing the program, students receive the certifications recognised by top different universitie, setting a strong foundation for a successful career in digital marketing.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
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Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
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http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
TESDA TM1 REVIEWER FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...
Vertebral Canal Lecture Notes
1. Dr Adel Bondok 1 VERTEBRAL CANAL
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VERTEBRAL COLUMN
INDIVIDUAL VERTEBRAE
It is formed of 33 vertebrae which are named according to region and position:
Cervical: 7 vertebrae (C1-C7)
Identified by the presence of foramen in the transverse process.
C1 is known as "atlas" and supports the head.
C2 is known as "axis"
Typical vertebrae (C3-C6) possess small bifid spinous processes
Small bodies
Thoracic: 12 vertebrae (T1-T12)
Identified by the presence of costal facets for articulation with the heads of ribs
Body is intermediate in size between the cervical and lumbar vertebrae.
Lumbar: 5 vertebrae (L1-L5)
Have a large body
Don't have costal facets nor transverse process foramina
Sacral: 5 fused vertebrae (S1-S5) forming the sacrum
Coccygeal: 4 fused vertebrae forming the coccyx.
It is called the Tailbone.
Identification of the Individual Spine:
C7 is the lowest most prominent cervical spine.
T3 is at level of medial part of spine of scapula.
T7 is at inferior angle of the scapula.
L4 is at highest point of iliac crest.
S2 is at the level of posterior superior iliac spine.
CURVES OF THE VERTEBRAL COLUMN:
2 main curves
1. Primary Curves:
They are present during fetal life and at birth.
They persist as the thoracic and pelvic curves.
Are convex posteriorly
2. Secondary Curves:
they are compensatory curves and are
developed after birth.
They form the cervical and lumbar curves.
Are convex anteriorly
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2. Dr Adel Bondok 2 VERTEBRAL CANAL
Therefore, there are 4 curves: 2 primary and 2 secondary. From above downward:
1. The Cervical Curve:
Is a secondary curve that appears after birth.
Is convex forward and is the least marked of all the curves.
It appears at the 3rd month when the child raises his head.
2. The Thoracic Curve:
Is a primary curve (kyphotic curve) that appears at birth.
Is concave forward.
3. The Lumbar Curve:
Is a secondary curve (lordotic curve ) that appears after birth.
Is convex forward and is more marked in the female than in the male.
It appears at the 9th-18th month when the child sits upright and begins to walk.
4. The Pelvic (Sacral) Curve:
Is a primary curve that appears at birth.
Is concave forward (follows the concavity of the sacrum).
VERTEBRAL (SPINAL) CANAL
Definition:
Is the space between the bodies and the
vertebral arches of the vertebrae.
It contains the spinal cord and the
meninges (and cauda equina below L2).
Protection: the canal is protected by the:
1. Ligamentum flavum posteriorly
2. Posterior longitudinal ligament anteriorly.
Meningeal Spaces in the Canal:
The meninges (dura, arachnoid & pia mater)
divide the spinal canal into 3 spaces:
1. The epidural space: outside the dura. It contains:
a. loose fatty tissue
b. The internal vertebral venous plexus formed by the anterior vertebral
venous plexus and the posterior vertebral venous plexus
2. The subdural space: potential space between the dura and arachnoid.
3. The subarachnoid space: between the arachnoid and pia mater. It contains:
a. Cerebrospinal fluid.
b. spinal arteries, namely the anterior spinal artery and the 2 posterior
spinal arteries.
c. Corresponding spinal veins.
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3. Dr Adel Bondok 3 VERTEBRAL CANAL
ABNORMALITIES OF THE VERTEBRAL CANAL
1. Spina bifida:
Is cleft in the arches of the vertebrae (absent spine).
A protrusion of the spinal membranes through the defect forms meningocele
Protrusion of the spinal cord and the menibese forms meningomyelocele.
Spina bifida is most common in the lumbosacral region, but it may occur in the
thoracic or cervical region.
2. Vertebral canal stenosis (narrowing): causing spinal cord compression.
3. Abnormal curvatures:
a. Kyphosis:
Is an exaggerated kyphotic (posterior) curvature in the thoracic region.
It is commonly observed in osteoporosis.
b. Lordosis:
Is an exaggerated lordotic (anterior) curvature of the lumbar region.
Temporary lordosis is common in pregnant women.
c. Scoliosis:
Is lateral curvature of the vertebral column.
Is the most common abnormal curvature (in 0.5% of the population).
It is more common among females
May result from unequal growth of the two sides of 1 or more vertebrae.
BLOOD SUPPLY OF THE VERTEBRAL COLUMN & SPINAL CORD
Arteries Supplying the Vertebral Column and Spinal Cord:
1. One anterior spinal artery: by union of 2 branches from the vertebral arteries.
2. 2 Posterior spinal arteries: each arises from the vertebral artery or the PICA.
3. Radicular arteries:
a. In the neck: from the
1. Vertebral artery: arises from the 1st part of the subclavian artery.
2. Ascending cervical artery: arises from the inferior thyroid artery.
b. In the thorax: from the posterior intercostal arteries (thoracic aorta).
c. Lumbar region: from the lumbar arteries (abdominal aorta).
d. Sacrum and Coccyx:
1. Median sacral artery: arises from the abdominal aorta.
2. Lateral sacral arteries: from the internal iliac artery.
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4. Dr Adel Bondok 4 VERTEBRAL CANAL
Veins Draining the Vertebral Column and Spinal Cord:
Into the internal and external vertebral venous plexus which drain into the:
1. Cervical Region: into the vertebral vein
2. Thoracic Region: into the posterior intercostal veins then to azygos and
hemiazygos veins then to the superior vena cava.
3. Lumbar vertebrae, Sacrum and Coccyx: into the
a. Lumbar veins: which drain into the inferior vena cava.
b. Lateral sacral veins: which drain into the internal iliac veins
INTERVERTEBRAL DISC
Position: The discs lie between the vertebral bodies and are fused with them.
Structure:The intervertebral discs consist of 2 parts:
1. An outer fibrous ring: annulus fibrosus formed of crisscrossed, tight
collagen fibers connecting the adjacent vertebrae
2. Spongy center: nucleus pulposus in the middle of the intervertebral disc. It
is comprised of 80% water
.
Function: the intervertebral discs function like a shock absorber. The spongy center
absorbs pressures exerted upon the vertebre.
Changes in the water content:
Compression forces develop in the spinal column during movements are
absorbed and distributed by the intervertebral discs. These compression
forces force the water to go out of the intervertebral disc, making it thinner.
When the pressure is relieved, for example during sleep, the disc takes up
water again and becomes thicker.
This mechanism explains why a person’s height may vary by 1-2 cm in the
course of a day depending on load and strain on the spine.
Aging:
Due to the natural aging process, intervertebral discs lose their capacity to
take up water, resulting in a drop in the swelling capacity of the spongy center.
As the intervertebral disc becomes less elastic and thinner, the adjacent
vertebrae move closer together.
This results in bone-on-bone reactions involving formation of osteophytes
(new bony substance) at the epiphyses of the vertebral bodies – a sign of the
degeneration (wearing down) of the intervertebral disc (osteochondrosis,
spondylosis).
Blood Supply:
The intervertebral disc doesn't contain blood vessels after the fourth year of
life, and is supplied with nutrients via diffusion.
Metabolic exchange takes place through the porous bony structures of the
vertebral bodies by way of diffusion from the marrow spaces of the vertebrae.
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5. Dr Adel Bondok 5 VERTEBRAL CANAL
LABEL THE FIGURES
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