The pharynx is a passageway shared by the digestive and respira tory systems. It has lateral, posterior, and medial walls through out, but is open [...]
Muscles of respiration: inspiration is always an active process. The following muscles are involved: The diaphragm is the most important muscle of [...]
Veins are low-pressure vessels that have larger lumina and thinner walls than arteries. In general, veins have more collagenous connec ti-ve tissue and [...]
Arteries are classified according to their size, the appearance of their tunica media, or their major function.
Large elastic conducting arteries [...]
There are 12 thoracic vertebrae. The vertebrae have facets on their bodies to articulate with the heads of ribs; each rib articulates with the body of [...]
Cervical vertebrae: There are seven cervical vertebrae of which the first two are atypical. All cervical vertebrae have openings in their transverse [...]
The extensive chapter covers the major bones of the skeleton as well as their associated muscles and tendons. Blood suppfy and inner-vation are reviewed [...]
Muscles are the active part of the motor apparatus; their contraction produces various movements.
The muscles may be divided from a physiological [...]
Skeletal (voluntary) system.
The dermomyotome further differentiates into the myotome and the dermatome.
Cells of the myotome migrate ventrally to [...]
A tissue is a group of cells working together to do a special job. A histologist is one who specializes in the study of tissues. The cells, of which the [...]