Human body organs and their functions pdf

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human body organs and their functions pdf

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List of systems of the human body

A number of complex processes and systems together form the human body. Zillions of cells and many organs work in coordination in the body to enable us to perform everyday functions. The human body and its anatomy can be complicated topics to study and revise.

Therefore, we have come up with this list containing all the facts related to the human body. This list will help you memorize all the important body parts and their functions, for your exam. You can get the direct link to download the PDF at the end of the article! We hope you find this post on Functions and Anatomy of Human Body helpful. Go through some more of our similar posts to enhance your general awareness:. Boost up your preparation and practice to brush up your skills by clicking on the link below which will take you to Testbook Practice!

Practice Questions for Govt. Sign Up for Free Create free Account? Sign In. Open in App Create free Account. Search for:. Sign Up. Get Pass Pass. UP Police. AAI JE. Bihar Police. Table of Contents. Human Skeleton bones at birth, in adults. Longest bone — Femur thighbone. Smallest bone — Stapes in the ear. Other bones — Humerus upper arm , Fibula lower leg , Tibia shinbone.

Muscular System Skeletal, smooth and cardiac muscles. Largest muscle — Gluteus Maximus buttock. Smallest muscle — Stapedius in the ear. Teeth 20 baby or milk teeth 32 adults permanent teeth Incisors 8 Canines 4 Premolars or Bicuspids 8 Molars 12 Made of enamel.

Average length in adult human male is 6. Largest gland in the human body. Secretes the enzyme — bile. Located in the upper right quadrant of the abdominal cavity. Has four lobes. Can be fractured. Can be regenerated from the part. Pancreas An endocrine gland that produces several important hormones. Chief among these hormones are insulin, glucagon, somatostatin, pancreatic polypeptide. It also secretes digestive enzymes called pancreatic juices.

Insulin is produced from near the area called Islets of Langerhans. Primary bronchus — right and left. These branch into smaller secondary and tertiary bronchi. No gas exchange takes place in bronchi. Also maintains pH homeostasis. Also removes excessive organic molecules from the blood. Thus it removes waste products of metabolism.

Also produce hormones — renin, calcitriol, and erythropoietin. Two bean-shaped organs made up of cells called nephrons. Uterus It is a hormone-responsive reproductive sex organ in females. Aka womb. One end connects to the fallopian tubes. The other end, the cervix, opens into the vagina. It is within the uterus that the egg is fertilized, and the fetus is developed. Thyroid Gland One of the largest endocrine glands in the body.

It consists of two connected lobes. It is found in the neck. They help regulate growth and rate of function of many other systems in the body.

T3 and T4 are synthesized from iodine and tyrosine. It also produces calcitonin which plays a role in calcium homeostasis. The hormonal output is regulated by thyroid-stimulating hormone TSH. Divided into 4 chambers — Left atrium top , right atrium top , left ventricle bottom , right ventricle bottom. In a healthy heart, blood flows one way through the heart due to heart valves, which prevent backflow. Enclosed by a protective sac called pericardium. Wall of heart made up of — epicardium, myocardium, endocardium.

Blood low in oxygen enters right atrium from superior and inferior venae cavae. From here it passes to the right ventricle. From here it is sent to the lungs, where it receives oxygen and gives off CO2. Oxygenated blood returns to the left atrium and passes to the left ventricle. From here it leaves heart through the aorta. The heart is a fist-sized organ that is placed in the middle of the chest cavity. It is slightly offset to the left.

The left heart is stronger so heartbeats felt more strongly on the left. Bone Marrow Flexible tissue in the interior of bones. Red blood cells produced by the bone marrow in heads of long bones. Bone marrow is a key component of the lymphatic system. Brain The main organ of the human central nervous system and the human body. Located in head, protected by the skull. Composed neurons, glial cells, and blood vessels. Divided into three parts — forebrain, midbrain, and hindbrain.

The cerebral cortex is so large that it overshadows all other parts of the human brain. Three parts of the cerebral cortex — cerebrum forebrain , cerebellum hindbrain , and brainstem.

There are two hemispheres in the brain — left and right. The mind is an emergent property of the brain. Nerves Enclosed, cable-like bundles of axons nerve fibers.

Part of the peripheral nervous system. Provides a pathway for electrochemical nerve impulses to and from peripheral organs.

Categorized into three groups based on the direction of signals — afferent nerves from sensory neurons to the central nervous system , efferent nerves from CNS to muscle and glands and mixed nerves contains both signals. Categorized into two groups based on where they connect to CNS — spinal nerves connect to the spinal cord , and cranial nerves connect directly to the brain. Consists of three parts — the outer ear, middle ear, and inner ear.

The outer ear consists of the auricle visible part of the ear and ear canal. It gathers and focusses sound energy on to the eardrum. The eardrum is a membrane that separates the external ear from the middle ear. The middle ear contains three ossicles which transfer vibrations from the eardrum to inner ear.

The inner ear is a bony labyrinth. It has two main functional parts — cochlea and vestibular system. Continue Reading in App. Next Post. More from testbook. No more posts found! Deficiency Diseases and Malnutrition.

10.4: Human Organs and Organ Systems

Different organs can work together to perform a common function, like how the parts of your digestive system break down food. We refer to an integrated unit as an organ system. Groups of organ systems work together to make complete, functional organisms, like us! There are 11 major organ systems in the human body. The circulatory system is a body-wide network of blood, blood vessels, and lymph. Read more. Every tissue within the body requires oxygen to function.

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The Organization and Structure of the Human Body

A number of complex processes and systems together form the human body. Zillions of cells and many organs work in coordination in the body to enable us to perform everyday functions. The human body and its anatomy can be complicated topics to study and revise.

The human body is actually an amazing coalition of many different systems that work together to keep everything functioning correctly. For example, some systems handle food and energy, while others focus on taking in oxygen and moving it around the body. By learning about the different systems working inside the body, you can understand how everything works together to keep you healthy, growing, and strong. Your brain and spinal cord are the major parts of the central nervous system.

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Internal body organs

Younger primary students may have little knowledge about internal bodily organs. They tend to think the contents of the body are what they have seen being put into or coming out of it, such as food and blood. Their experiences with everyday cuts, scratches and bruises seem to reinforce a view that blood is below the surface of the skin, filling the spaces inside the body like a bag of blood.

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Introduction: Some terms used to describe the relative positions of body parts are used. ISBN , Introduction and Terminology. These systems are closely interrelated and interdependent. See image of free textbook below.

Human Body Printables. The Human Body Workbook is geared towards elementary age students. These worksheets will help students to understand the function and structure of many human body systems. This is a mini book based on the book Ouch! By, Melvin Berger there's a link up above on Amazon Page 1. For body parts worksheets and a printable game to match these cards, check out these worksheets in the flashcard worksheet section.

Also called the alimentary canal. The audio, illustrations, photos, and videos are credited beneath the media asset, except for promotional images, which generally link to another page that contains the media credit. The Rights Holder for media is the person or group credited. Tyson Brown, National Geographic Society. National Geographic Society.

organ systems in your body so they can undergo cellular respiration. Cell type - Muscle. Major Organs and Their Functions. Heart – the major muscle of the.

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ГЛАВА 125 - Сколько у нас времени? - крикнул Джабба. Техники в задней части комнаты не откликнулись. Все их внимание было приковано к ВР. Последний щит угрожающе таял. Сьюзан и Соши занялись поисками во Всемирной паутине.

В кабине Сьюзан жадно вдохнула свежий прохладный воздух и, почувствовав головокружение, прижалась к стенке лифта. Вскоре спуск закончился, переключились какие-то шестеренки, и лифт снова начал движение, на этот раз горизонтальное. Сьюзан чувствовала, как кабина набирает скорость, двигаясь в сторону главного здания АНБ. Наконец она остановилась, и дверь открылась. Покашливая, Сьюзан неуверенно шагнула в темный коридор с цементными стенами.


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