Theory of phylembryogenesis

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CONTENTS Embryogenessis Theory of phylembryogenesis ontogenesis Disease agents, their pathways of

CONTENTS

Embryogenessis
Theory of phylembryogenesis
ontogenesis
Disease agents, their pathways of penetration and impact

on the human body.
Classification of infectious diseases. of disease.
Works E.N. Pavlovsky.
Geographical regularities of spreading of natural-focal diseases. Landscape science as a basis.
landscape endemiology. Dynamics of natural foci of infectious and viral diseases.
of invasive diseases as a result of anthropogenic landscape changes.
Poisons and allergens of plant and animal origin, their effect on the human body.
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EMBRYOGENESIS

EMBRYOGENESIS

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Embryonic development also embryogenesis is the process by which the embryo

Embryonic development also embryogenesis is the process by which the embryo forms and

develops. In mammals, the term refers chiefly to early stages of prenatal development, whereas the terms fetus and fetal development describe later stages
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THEORY OF PHYLEMBRYOGENSIS A theory put forth by Russian palaeontologist Severtsov,

THEORY OF PHYLEMBRYOGENSIS

A theory put forth by Russian palaeontologist Severtsov, postulating that phylogenetic

changes in organisms are conditioned by ontogenetic alterations, in that certain events are added, modified or deleted in the development of an embryo based on the events of ancestral development.
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ONTOGENESIS Ontogeny is the development of a single individual, or a

ONTOGENESIS

Ontogeny is the development of a single individual, or a system within

the individual, from the fertilized egg to maturation and death
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The human body has three large epithelial surfaces namely skin,respiratory mucosa,and


The human body has three
large epithelial surfaces
namely skin,respiratory
mucosa,and ailmentary tract.
They

have two lesser surfaces
namely genital tract and conjuctiva

PENETRATION PATHWAYS


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CLASSIFICATION OF INFECTIOS DISEASE

CLASSIFICATION OF INFECTIOS DISEASE

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WORKS OF E.N. PAVLOVSKY The founder of school of thought Evgenni


WORKS OF E.N. PAVLOVSKY
The founder of school of thought Evgenni

Nikanorovich Pavlovsky ( 1884 – 1965)
worked at the zoological institue of the USSR academy of sciences from 1930 –
1965 and was the director of the institur from 1942 to 1962
E.N. Pavlovsky was twice a prize winner of state price ( 1941, 1950) and lenin prize
(1965). President of the all- union entamological socoietyu of the USSR sciences
(1931 -1965)
Major publications of E.N. pavlovsky
Handbook on parasitology of man and theory on vectors of transmissive diseases
Natural focality of transmisssive disease
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The basis of landscape science it is the theory that the

The basis of landscape science
it is the theory that the geographic landscape is the primary element in

the physicogeo-graphical differentiation of the earth. ...
Elementary geographic complexes are studied as parts of related, regularly structured territorial systems (landscapes).
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TASKS OF LANDSCAPE SCIENCE ITS TASKS IS TO STUDY THE PARTS

TASKS OF LANDSCAPE SCIENCE
ITS TASKS IS TO STUDY THE PARTS OF

THE LANDSCAPE (the lowest level geosystems)
Localities‘
Natural boundaries
Their relative arrangement and interactions
The types of spatial structures formed by lanscapes,
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DYNAMICS OF INVASIVE DISEASES The dynamics of any infections disease are



DYNAMICS OF INVASIVE DISEASES
The dynamics of any infections disease

are heavily dependant on the rate of transmission from infectious to susceptible hosts
In many disease models, this rate is captured in a single compound parameter,the probability of transmission B
Concepts underlying the different approaches to modeling disease
transmission and by laying out why a more detailed understanding of the variables involved is usually desirable
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DYNAMICS OF NATURAL FOCI OF INFECTIOUS DISEASE

DYNAMICS OF NATURAL FOCI OF INFECTIOUS DISEASE

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ANTHROPOGENIC LANDSCAPE DAMAGE

ANTHROPOGENIC LANDSCAPE DAMAGE

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Poisons and allergens of plant origin The study of plant poisons

Poisons and allergens of plant origin
The study of plant poisons is

known as phytotoxicology.
Most of the poisonous higher plants are angiosperms, or flowering plants
Poisonous plants may be classified according to the chemical nature of their
toxic constituents
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Toxic effects on humans Plants contain substances that may exert toxic


Toxic effects on humans
Plants contain substances that may exert toxic

effects on skin, lung,
cardiovascular system, liver, kidney, bladder, blood, nervous system,bone, and
the endocrine and reproductive systems
Contact dermatitis and photosensitivity are common skin reactions with many
Plants
Gastrointestinal effects range from local irritation to emesis and/or diarrheaToxic effects on humans
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Poisons of animal origin(zootoxin) ■ Venomous animals produce poison in a



Poisons of animal origin(zootoxin)
■ Venomous animals produce poison in

a highly developed secretory gland or group of cells and can deliver their toxin during biting or stinging
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DEVELOPMENT DISORDERS OF HUMAN RESPIRATORY SYSTEM 1)ASTHMA. 2)CHRONIC OBSTRUCTIVE PULMONARY DISEASE

DEVELOPMENT DISORDERS OF HUMAN RESPIRATORY SYSTEM 1)ASTHMA. 2)CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD)

.3)CHRONIC BRONCHITIS. 4)EMPHYSEMA. 5)LUNG CANCER. 6)CYSTIC FIBROSIS/BRONCHIECTASIS. 7)PNEUMONIA. 8)PLEURAL EFFUSION.
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Developmental disorder of human vascular system Coronary artery disease Atherosclerosis arteriosclerosis

Developmental disorder of human vascular system
Coronary artery disease
Atherosclerosis
arteriosclerosis
Stroke
Hypertension
Heart failure
Aortic dissection
aneurysm.
Myocarditis
Pericarditis
Cardiomyopathy.

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DEVELOPMENTAL DISORDERS OF NERVOUS SYSTEM IN HUMANS The neurodevelopmental disorders are:

DEVELOPMENTAL DISORDERS OF NERVOUS SYSTEM IN HUMANS
The neurodevelopmental disorders are:
Intellectual disability

(ID) or intellectual and developmental disability (IDD), previously called mental retardation
Specific learning disorders, like dyslexia or dyscalculia.
3. Autism spectrum disorders, such as Asperger's syndrome or Autistic Disorder2 / 2
4. Motor disorders including developmental coordination disorder and stereotypic movement disorder
5. Tic disorders including Tourette's syndrome
6. Traumatic brain injury (including congenital injuries such as those that cause cerebral palsy)
7. Communication, speech and language disorders8. Genetic disorders, such as schizophrenia
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DEVELOPMENT DISORDER OF HUMAN REPRODUCTIVE SYSTEM Reproductive disorders are diseases involving

DEVELOPMENT DISORDER OF HUMAN REPRODUCTIVE SYSTEM
Reproductive disorders are diseases involving

the reproductive system,
including
reproductive tract infections,
congenital abnormalities,
cancers of the reproductive system and
sexual dysfunction.
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Developmental disorders of skin human Acne (Fifty-million Americans are affected by

Developmental disorders of skin human
Acne (Fifty-million Americans are affected by acne

annually, making it the most common skin condition in the U.S. Acne often appears on the face, neck, shoulders, chest and upper back. )
Cold Sores
Hives
Rosacea
Eczema
Psoriasis
Keratosis Pilaris
Melanoma.
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Developmental disorders of the excretory system in human:- 1) Renal failure

Developmental disorders of the excretory system in human:-
1) Renal failure

uremia is a syndrome of renal failure characterized by elevated levels of urea and creatinine in the blood
2)The type of renal failure is determined by the trend in the serum creatinine.
3)In renal failure, there may be problems with increased fluid in the body
4) Increased acid levels, raised levels of potassium, decreased levels of calcium, increased levels of phosphate, and in later stages, anemia.
5) Renal failure can be divided into two categories: acute kidney injury or chronic kidney disease.
6) Renal failure is mainly determined by a decrease in the glomerular filtration rate, which is the rate at which blood is filtered in the glomeruli of the kidney.