lesson for grade 9 science
the topics includes: (a)respiratory system, (b) circulatory system, (c) other organs working together with the respiratory and circulatory system
lesson for grade 9 science
the topics includes: (a)respiratory system, (b) circulatory system, (c) other organs working together with the respiratory and circulatory system
Nervous system PPT for grade 10 (basic concepts regarding human nervous system)AzkaSamreen
Human nervous system is highly complex, while reading in higher classes, we often mix up concepts. In this SlideShare I've tried to simplify the material for grade 10 students to better understand the concept.
Nervous system PPT for grade 10 (basic concepts regarding human nervous system)AzkaSamreen
Human nervous system is highly complex, while reading in higher classes, we often mix up concepts. In this SlideShare I've tried to simplify the material for grade 10 students to better understand the concept.
describes the structure of hb, its variants in detail. Oxygen dissociation curve is explained with graph. Hemoglobinopathy is explained with diagram. myoglobin is also explained.
Powerpoint presentation about nutrient support. This has the process on how nutrients were taken, absorbed, utilized and how waste materials were eliminated in the body.
Human cardiovascular system, organ system that conveys blood through vessels to and from all parts of the body, carrying nutrients and oxygen to tissues and removing carbon dioxide and other wastes. It is a closed tubular system in which the blood is propelled by a muscular heart. Two circuits, the pulmonary and the systemic, consist of arterial, capillary, and venous components.
The primary function of the heart is to serve as a muscular pump propelling blood into and through vessels to and from all parts of the body. The arteries, which receive this blood at high pressure and velocity and conduct it throughout the body, have thick walls that are composed of elastic fibrous tissue and muscle cells. The arterial tree—the branching system of arteries—terminates in short, narrow, muscular vessels called arterioles, from which blood enters simple endothelial tubes (i.e., tubes formed of endothelial, or lining, cells) known as capillaries. These thin, microscopic capillaries are permeable to vital cellular nutrients and waste products that they receive and distribute. From the capillaries, the blood, now depleted of oxygen and burdened with waste products, moving more slowly and under low pressure, enters small vessels called venules that converge to form veins, ultimately guiding the blood on its way back to the heart.
The Cardiovascular System Essay
The Circulatory System
The Circulatory System Essay
Circulatory System Essay
The Circulatory System Essays
Circulatory System
The Circulatory System
The Circulatory System
The Cardiovascular System Essay
The circulatory system, also called the cardiovascular system or the vascular system, is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
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.
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.
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.
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!
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
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.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
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.
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
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
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
1.4 modern child centered education - mahatma gandhi-2.pptx
Respiratory & Circulatory System
1.
2. The human body needs oxygen to
sustain itself. The human respiratory
system is a series of organs responsible
for taking in oxygen and expelling
carbon dioxide. The respiratory center in
the medulla oblongata and the pons of
the brainstem
3. Air passes through the
nostrils; organ of smell
and entrance to the
respiratory tract right to
the nasal cavity, the
pharynx, and the larynx
above the vocal cords.
Nasal cavity
Pharynx
Larynx
4. Air passes the epiglottis, that is a cartilaginous
structure that closes the opening to the trachea
when swallowing, to prevents food and drink
from entering the larynx and trachea.
The trachea, also called the windpipe, filters the air that
is inhaled. The trachea has a membrane lining that
produces a layer of mucus that helps filter waste that an
organism breathes in through the air. There is also a
small lining of tiny hairs in our lungs called cilia. These
tiny hairs act as a filter in our lungs and control the
amount of mucus that enters our lungs.
The reason why we cough, sneeze, and spit is because
the cilia push up the mucus, so not too much enters our
lungs, for either expectoration or swallowing to the
stomach where the acidic pH helps to neutralize foreign
material and micro-organisms.
5. When air passes the trachea, gets to the bronchi
located inside the lungs. The bronchi form the
bronchial tree and at the end of the bronchial tree
lie the alveolar ducts, the alveolar sacs, and the
alveoli.
A typical pair of human lungs contain about
700 million alveoli The alveoli contain
some collagen and elastic fibres. The elastic
fibers allow the alveoli to stretch as they are
filled with air during inhalation. They then
spring back during exhalation in order to expel
the carbon dioxide-rich air.
Pulmonary gas exchange takes place by
passive diffusion. During this exchange of
oxygen, energy is not required to be burned by
the cells. Gases move due to a concentration
6. Molecules of oxygen and carbon dioxide
are passively exchanged, by diffusion,
between the gaseous external
environment and the blood.
Blood passes through the capillaries. The
pulmonary artery carries blood containing
carbon dioxide to the air sacs, where the gas
moves from the blood to the air. Oxygenated
blood goes to the heart through the pulmonary
vein, and the heart pumps it throughout the body.
7. The diaphragm is a sheet of internal skeletal
muscle that extends across the bottom of
the thoracic cavity. The diaphragm separates
the thoracic cavity, containing
the heart and lungs, from the abdominal
cavity.
It performs an important function in respiration:
as the diaphragm contracts, the volume of the
thoracic cavity increases and air is drawn into
the lungs.
The diaphragm has openings through which
structures pass between the thorax and abdomen.
There are three large openings—the aortic hiatus,
the esophageal hiatus, and the caval opening—plus a
series of smaller ones.
8.
9. The circulatory system, also known as the
cardiovascular system is a vast network of
organs and vessels that is responsible for
the flow of blood (simply a highway for
blood) nutrients, hormones, oxygen and
other gases to and from cells.
10. It is made up of three independent systems
that work together: the heart
(cardiovascular); lungs (pulmonary); and
arteries, veins, coronary and portal vessels
11. As we breathe, oxygen enters the lungs and is absorbed
into the blood stream. The body's oxygen transport
system takes oxygen to the working muscles, through
the circulatory and respiratory systems working
together. The main workers are
the heart, blood and lungs. The whole oxygen transport
system works in a cycle.
12.
13. In the average
human, about 2,000
gallons (7,572 liters)
of blood travel daily
through about 60,000
miles (96,560
kilometers) of blood
vessels.
14. The essential components of
the human cardiovascular
system are the heart, blood and
blood vessels. The
cardiovascular systems of
humans are closed, meaning
that the blood never leaves the
network of blood vessels.
15. The blood moves at a speed of about 30cm / sec, where a
drop of blood takes about 20 seconds to travel the entire
human body and return to the point where it left (full
16. The heart pumps oxygenated blood
to the body and deoxygenated blood
to the lungs. In the human there are
four chambers in total: left
atrium, left ventricle, right
atrium and right ventricle. The right
atrium is the upper chamber, that
receives deoxygenated (poor in
oxygen) and passed into the right
ventricle to be pumped through the
pulmonary artery to the lungs for re-
oxygenation and removal of carbon
dioxide.
17. The left atrium receives newly
oxygenated blood from the lungs
which is passed into the strong left
ventricle to be pumped through the
aorta to the different organs of the
body.
The ventricles are separated from each other by
the interventricular septum. The heart has
four valves, the valves between the atria and
ventricles are called the atrioventricular
valves. Between the right atrium and the right
ventricle is the tricuspid valve. The mitral
valve lies between the left atrium and left
ventricle.
18. The heart wall is made up of three layers:
the inner endocardium,
middle myocardium and
outer epicardium. These are surrounded
by a double-membraned sac called the
pericardium.
Two additional semilunar valves sit at the
exit of each of the ventricles.
The pulmonary valve is located at the
base of the pulmonary artery. The
semilunar aortic valve is at the base of
the aorta.
19.
20. The blood from the heart is carried through the body by
a complex network of blood vessels . Arteries take blood
away from the heart. The main artery is the aorta that
branches into other major arteries, which take blood to
different limbs and organs.
These major arteries include the carotid artery, which
takes blood to the brain; the brachial arteries, which take
blood to the arms; and the thoracic artery, which takes
blood to the thorax and then into the hepatic, renal, and
gastric arteries for the liver, kidneys, and stomach,
respectively. The iliac artery takes blood to the lower
limbs. The major arteries diverge into minor arteries, and
then into smaller vessels called arterioles, to reach more
deeply into the muscles and organs of the body.
21. Veins are blood vessels that carry blood toward the heart. The
largest veins in the human body are the venae cavae. These are
two large veins which enter the right atrium of the heart from
above and below. The superior vena cava carries blood from the
arms and head , while the inferior vena cava carries blood from
the legs and abdomen to the heart. The major arteries diverge into
minor arteries, and then into smaller vessels called arterioles, to
reach more deeply into the muscles and organs of the body.
22. Capillaries are the smallest of a body's blood vessels (and lymph
vessels) that make up the microcirculation. These microvessels,
connect arterioles and venules, and they help to enable the exchange
of water, oxygen, carbon dioxide, and many other nutrients and
waste substances between the blood and the tissues surrounding
them. Lymph capillaries connect with larger lymph vessels to
drain lymph collected in the microcirculation. Blood flows from the
heart through arteries, which branch and narrow into arterioles, and
then branch further into capillaries. The capillaries then join and
widen to become venules, which in turn widen and converge to
become veins.
23. As mentioned earlier the
cardiovascular system is
closed, the other component
of the circulatory system,
the lymphatic system is open,
and is a vital part of
the immune system,
comprising a network
of lymphatic vessels that
carry a clear fluid
called lymph.
24. The lymphatic system works in
close cooperation with other
body systems to
destroy pathogens and filter
waste. Often called the body’s
two "circulatory systems”, but
the
lymph flows to the heart, and
thanks to a valve system that
prevents recoil moves.
25. Organs of the lymphatic system include the tonsils,
thymus gland and spleen. The thymus gland produces
T cells or T-lymphocytes and the spleen and tonsils help
in fighting infections. The spleen’s main function is to
filter the blood, removing unwanted red blood cells, also
detects viruses and bacteria and triggers the release of
pathogen fighting cells.