Online Science Notes

Science notes for all

  • Home
  • Introduction
  • Physics
  • Chemistry
  • Biology
    • Developmental biology
    • Cell biology
    • Zoology
      • Adaptation in living organisms
      • Useful insects
    • Botany
    • Anatomy and Physiology
      • Cardiovascular system
      • Skeletal system
      • Endocrine system
  • Microbiology
    • Bacteriology
    • Virology
    • Mycology
    • Parasitology
    • Immunology
    • Bacterial genetics
    • Pharmaceutical microbiology
  • Laboratory tests
  • Biotechnology
  • Molecular Biology
  • Biochemistry
  • Geology and Astronomy
  • Food and Nutrition
  • Differences between
  • Did you know that?
  • Inventions and discoveries
  • About the Author

Anatomy and Physiology

Electrocardiogram, the recording of electrical activities of the heart

August 7, 2018 Sushil Humagain 0

A permanent recording of the electrical events during a cardiac cycle made on a graph paper in the form of waves is called electrocardiogram (ECG). […]

Differences between medullated and non-medullated nerve fibers

July 16, 2018 Sushil Humagain 0

S.N. Medullated (Myelinated) nerve fiber Non-medullated (Non-myelinated) nerve fiber 1. It comprises of neuraxis, which is covered by two sheaths; i) inner thick myelin sheath […]

Structure and functions of the human brain

July 16, 2018 Sushil Humagain 0

The brain is soft, whitish, somewhat flattened organ situated in the cranial cavity of the skull which protects the brain from mechanical injury. The brain […]

Cardio-vascular diseases (Types, Causes and Prevention)

July 5, 2018 Sushil Humagain 0

Many diseases affect the blood vessels and the heart. These include hypertensive heart diseases, coronary heart diseases, rheumatic heart diseases, heart block and stroke. A […]

Organization of the nervous system

June 23, 2018 Sushil Humagain 0

Our body is constantly reacting and adjusting to the changes in the outside environment and within the body itself (internal environment), which are called stimuli […]

Pulmonary air volumes and capacities

May 30, 2018 Sushil Humagain 0

The quantities of air the lungs received, held or expeled under different conditions are called pulmonary or lung volumes. Pulmonary capacity refers to a combination […]

Differences between arteries and veins

February 14, 2018 Sushil Humagain 0

S.N. Arteries Veins 1. Arteries carry blood away from the heart and distribute to different body parts.   Veins bring blood from different body parts […]

Differences between blood and lymph

February 12, 2018 Sushil Humagain 0

S.N. Blood Lymph 1. It is a fluid connective tissue which is red in color. It is a colorless fluid connective tissue. 2. It is […]

Differences between axon and dendrites

February 12, 2018 Sushil Humagain 0

S.N. Axon Dendrites 1. There is generally one axon per neuron. They are usually many in number in a neuron. 2. It arises from a […]

Structure and types of neuron (The nervous tissue)

February 3, 2018 Sushil Humagain 0

The nervous tissue is purely ectodermal in origin and has the least regeneration power. It first appeared in the members of Coelenterata (Cnidaria) in which […]

Posts pagination

« 1 … 6 7 8 9 »




Recent Posts

  • Doppler Ultrasound: Uses, types and report interpretation
  • Varicose Veins: Causes, Signs, Management, and Prevention
  • Evolution: Theories of origin of life and evidence of evolution
  • Semi-conservative DNA Replication
  • Meiotic cell division (Meiosis), its stages and significance




Recent Comments

  • Jaya Narayan Bhusal on Electric bell (Construction and working mechanism)
  • Safal Parajuli on Sexual reproduction in animals
  • Sakshi Gauro on Cranial nerves (Types, Origin, Distribution and Function)
  • Sandesh Koirala on Sericulture and life cycle of silkworm
  • Jay Prasad on Adaptation in animals




Archives

  • January 2026
  • December 2025
  • December 2024
  • September 2023
  • July 2023
  • May 2023
  • April 2023
  • December 2022
  • July 2022
  • August 2021
  • July 2021
  • June 2021
  • May 2021
  • April 2021
  • March 2021
  • February 2021
  • January 2021
  • December 2020
  • November 2020
  • October 2020
  • September 2020
  • August 2020
  • July 2020
  • June 2020
  • May 2020
  • April 2020
  • March 2020
  • February 2020
  • January 2020
  • December 2019
  • November 2019
  • October 2019
  • September 2019
  • August 2019
  • July 2019
  • June 2019
  • May 2019
  • April 2019
  • March 2019
  • February 2019
  • January 2019
  • December 2018
  • November 2018
  • October 2018
  • September 2018
  • August 2018
  • July 2018
  • June 2018
  • May 2018
  • March 2018
  • February 2018
  • January 2018
  • December 2017
  • November 2017
  • October 2017
  • September 2017
  • August 2017
  • July 2017

Categories

  • Adaptation in living organisms
  • Anatomy and Physiology
  • Bacterial genetics
  • Bacteriology
  • Biochemistry
  • Biology
  • Biotechnology
  • Botany
  • Cardiovascular system
  • Cell biology
  • Chemistry
  • Developmental biology
  • Did you know that?
  • Differences between
  • Endocrine system
  • Food and Nutrition
  • Geology and Astronomy
  • Immunology
  • Inventions and discoveries
  • Laboratory tests
  • Microbiology
  • Molecular Biology
  • Mycology
  • Parasitology
  • Pharmaceutical microbiology
  • Physics
  • Skeletal system
  • Uncategorized
  • Useful insects
  • Virology
  • Zoology




Copyright © 2026 | WordPress Theme by MH Themes