Cat Nictitating Membrane

The price covers all students within a department (multi-user educational licence). Once payment has been received the software is supplied as a download. Online Previews before purchasing are available on request.

An interactive, menu driven program which simulates experiments on the superior cervical ganglion-nictitating membrane preparation of the cat (in vivo) to teach the pharmacology of ganglionic transmission and sympathetically innervated smooth muscle.

Introduction: provides information about the program and it's curricula context;

Tutorial: presents diagrammatic representations of the effector junction and the superior cervical ganglion. This section of the program uses animated sequences to demonstrate the stages of transmission at both the synapse and neuro-effector junction and highlights possible sites of action of drugs;

Methods: describes the preparation, protocols for nerve stimulation and administration of drugs to the superior cervical ganglion and the nictitating membrane, and the method of recording contractions of the nictitating membrane.

Experiments: allows students to perform simulated experiments on the preparation and provides recordings of the force of contraction of both ipsilateral and contralateral nictitating membranes which are displayed on a screen designed to emulate a chart recorder. A sub-menu gives students some control over experimental parameters (they can choose:

1. to administer an agent from a list: saline (vehicle control), acetylcholine, noradrenaline, atropine, phentolamine, propranolol, isoprenaline, hexamethonium, physostigmine, nicotine (low and high dose), tyramine, an unknown (which is randomly selected from the list above when the program is run);
2. the site of administration;
3. whether to electrically stimulate preganglionic nerves (half-maximal stimulation).

Although it is envisaged that the tutor will develop a set of tasks for students to address when using the simulation which will meet their own teaching objectives, this section does also includes some suggested tasks to aid independent use of the program.

Recommended System Requirements: Microsoft Windows XP (32 bit), Windows Server 2003 (32-bit), Windows Server 2008 (32 bit), Windows Vista (32 bit), Windows 7 (32 bit and 64 bit), Windows 8, 2.33GHz or faster x86-compatible processor, or Intel Atom 1.6GHz or faster processor for netbooks, 128MB of RAM (1GB of RAM recommended for netbooks); 128MB of graphics memory, Internet Explorer 7.0 or later, Mozilla Firefox 4.0 or later, Google Chrome, Safari 5.0 or later, or Opera 11.