Tissue Level of Organisation

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Cells are highly organised units which function as a group of similar cells, called tissue.

Below you can find a collection of videos that can help provide a more visual approach to Tissue Level of Organisation.

Epithelial Tissue

Glandular Epithelial Tissue

Types of Connective Tissue


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Cell Structure, Function and Level of Organisation

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The cell is the basic living structural and functional unit of the body.

Below you can find a collection of videos that can help provide a more visual approach to cell structure, cell function and cell level of organisation.

Selective Permeability and Passive Transport

Facilitated Diffusion through a Plasma Membrane

Passive Transport: Simple Diffusion and Facilitated Diffusion

Hypotonic, Isotonic and Hypertonic Solutions

The Filtration Process

Glomerular Filtration in Kidneys

The Difference Between Passive and Active Transport

The Sodium Potassium Pump

Electrochemical Gradients in Secondary Active Transport

Endocytosis, Phagocytosis and Pinocytosis

Exocytosis


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Fundamentals of Physiology

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Physiology is the science of functional mechanisms of living organisms such as the processes that maintain the identity of a living body during its exchange with its surroundings, and the manner in which information is received from the surroundings and how the organism reacts to influence its environment.

Below you can find a collection of videos that can help provide a more visual approach to physiology for nursing students.

Introduction to Physiology

Homeostasis Control through the Positive and Negative Feedback System


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Introduction to Anatomy

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Anatomy is the study of structure and the relationship among structures.

Below you can find a collection of videos that can help provide a more visual approach to anatomy for nursing students.

Anatomy Directional Terms

Anatomy Body Planes and Sections

Body Cavities and Membranes

Abdominal Quadrants and Regions


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Introduction to Pharmacology

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This Introduction to Pharmacology post features a collection of videos that provide a more visual approach for student nurses, for study purposes…

Pharmacology is the study of drugs and their actions on the body.

Below you can find a collection of videos that can help provide a more visual approach to an introduction to pharmacology for nursing students.


Pharmacodynamics

Pharmacodynamics refers to the mechanisms of drug action…the study of how a drug affects our bodies.

The majority of drugs elicit a response depending on how they interact with a particular protein, which happens through a receptor protein embedded in the cell membrane, or inside the cell within the cytoplasm or in the nucleus.

Sometimes a drug acts as a ligand for a receptor.

A drug may be:

  • Agonist: mimics the native ligand and elicits the typical physiological response (a.k.a. facilitator) – Agonist promotes normal function of the protein.
  • Antagonist: binds to the active site but DOES NOT activate the receptor (a.k.a. blocker / inhibitor) – Antagonist silences the protein and prevents function.

Drug Potency: the strength of a drug at a particular dosage or the amount of a drug required to produce a particular effect. Potency can also be described as the affinity of a drug for a receptor (high affinity = small amount of drug needed).

Drug Efficacy: maximum effect that can be achieved by a drug. Efficacy can also be described as the effect the drug has on the receptor and how well it acts as an agonist or an antagonist.

Pharmacokinetics

  • Absorption: how the drug moves from site of administration into the bloodstream
  • Distribution: journey through the bloodstream to reach target cells and molecules
  • Metabolism: modification by enzymes to render the drug ineffective
  • Excretion: the removal of the drug from the body via urine/faeces

Pharmacodynamics: Mechanisms of Drug Action

Pharmacokinetics: How drugs move through the body

Special thanks to the creator of the featured videos on this post, specifically Youtube Channel Professor Dave Explains.


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