Catalogue or guide to the Liverpool Museum of Anatomy, 29 Paradise Street.

  • Liverpool Museum of Anatomy.
Date:
[1877?]
Catalogue details

Licence: Public Domain Mark

Credit: Catalogue or guide to the Liverpool Museum of Anatomy, 29 Paradise Street. Source: Wellcome Collection.

    55/68 page 53
    trfse the lnuhest. from its specific gravity being the least. By this means- t.be heat imparted by the mother reaches it. After fertilization there are- two new cells, which produce others around them ; these last are absorbed' into the two, which continuing to increase form a mass of a mulberry colour- which moves up against the yolk-bag and surrounds it. This lining mem¬ brane is like that which surrounds the stomach. In its centre is a cell with a ring-like spot upon its walls, which is termed the nota-primitiva,„• this is the nucleus, aud cells are formed on this that lay the foundation of the brain and spinal cord. The heart appears early on the second day of incubation. As the yolk diminishes the whole of its sac is absorbed into the abdomen of the embryo, and stage after stage the embryo abvances, till finally the young chick breathes and breaks its shell. In the study of embryology the same rule governs the first condition of ali animals, the highest as well as the lowest,, namely, A SIMPLE CERL IS THE STARTING POINT OF LIFE. THE ORGANS OF SENSE ; OR, THE FIVE SENSES. The organs by which we are brought into relation with sur¬ rounding objects are five in number, namely : the eye, the ear, the nose, the tongue, and the skin, which respectively give us the power of sight, hearing, smell, taste, and touch or feeling—four of these are situated in the head; that of touch is distributed over every part of the body. ,It is the resistance we meet within coming in contact with external objects that gives any idea of their hardness or softness; and especially when the papillae at the end of the fingers pass over an object, do we become acquainted with its comparative roughness or smoothness. It can be improved, and made to compensate for any injury or deficiency in the other organs. The Eye indicates to ns the presence of light, and by it we teike cognizance of the form, size, colour, and position of surround¬ ing objects. Its formation shows it to be a wonderful optical j instrument, so complete that it will take in all surrounding scenery and depict it upon the expanded surface of the optic nerve, and so adjusted that it can adapt itself to every intensity of light, and turn in every direction with the utmost facility. The lectures of the Demonstrator in the Museum will direct attention , and explain the structure of this admirable organ. The visitor Is also referred to the representations. No. 645 and No. 198.
    digitised image 1
    digitised image 2
    digitised image 3