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Brain Dissection, Internal

This video shows the a sagittal cut in the brain of a sheep and identifies the major structures of the brain such as the  cerebrum, corpus callosum, cerebellum, pons, medulla, thalamus, hypothalamus, pineal gland, and the four ventricles.

Pectoral Muscles

      Dissected cat shows the main muscles of the thoracic region:  the pectoantebrachialis, pectoralis major, pectoralis minor and the xiphihumeralis.

Biceps, Lateral and Long Head

The biceps brachii is a two headed muscle on located in the upper arm region.  “Brachii” usually denotes structures found in the upper extremities and “biceps” means that it is a two-headed muscle.  On the cat, if you tease away the fascia you can separate these two

Large Intestine (Colon)

The large intestine has three main sections which can be difficult to identify in the cat.  Shown below is the abdominal cavity with most of the small intestine removed and the large intestine positioned in such a way to identify the three sections.  The first section after

Cecum and Colon

This image shows the jejunum and the ileum as it joins the large intestine (colon).  The pouch at this connection point in the cat is called the cecum.  In humans, the cecum has an attached appendage.   A valve can be found at this point in the

Stomach and Duodenum

This image shows the stomach and the first section of the small intestine, called the duodenum.  The next section of the small intestine is the jejunum followed by the ileum which connects it to the large intestine.

Jugular Veins, Internal and External

The chest cavity of the cat is opened to reveal the major veins that branch from the heart.  Shown in blue are the superior vena cava, the brachiocephalic, subclavian and the internal and external jugular veins.   

Heart – Coronary Vessels

This image of the heart shows a close-up view of the coronary vessels that are located on its surface.  The cat has been injected with latex to color the vessels (blue for veins, pink for arteries.)  Also visible is the pulmonary artery and the aorta.

Label the Eye

  A = retina | B = choroid | C = sclera | D = cornea E = lens  | F = pupil | G = iris  | H = suspensory ligaments I = optic disk | J = optic nerve | K = fovea centralis (macula)