Ventral Thoracic Muscles

There are two major deep muscles to find in the ventral thoracic region. The serratus ventralis of the cat is homologous to the serratus anterior in the human. This muscle has a number of divisions coming from the ribs.

Between the serratus anterior and the scapula is subscapu-laris. This muscle lies on the medial/ventral surface of the scapula.

Deep to the serratus anterior are the external and internal intercostals. As their name implies, the intercostal muscles are between the ribs and the external ones are superficial to the deeper internal intercostals. These muscles assist the diaphragm in breathing.

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Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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