Anatomy and Physiology Review

Front

What is the primary function of collagen in the dermis?

Back

Collagen provides structural support and strength to the skin, forming lines of cleavage that influence the direction of skin tension.

Front

What is the periosteum?

Back

The periosteum is a dense layer of vascular connective tissue that covers the diaphysis of long bones, providing attachment for muscles and serving as a conduit for blood vessels and nerves.

Front

What is the ventral cavity?

Back

The ventral cavity is the front part of the body that contains the thoracic cavity (chest) and the abdominopelvic cavity, housing most of the digestive organs.

Front

Define the term 'diaphysis'.

Back

The diaphysis is the long, tubular shaft of a long bone, primarily composed of compact bone and containing the medullary cavity.

Front

What is the role of keratin in the skin?

Back

Keratin is a fibrous protein that provides waterproofing and protection to the skin, hair, and nails.

Front

What is the significance of lines of cleavage in surgical procedures?

Back

Lines of cleavage indicate the direction of collagen fibers in the skin, and incisions made parallel to these lines heal better and result in less scarring.

Front

What is the function of melanin in the skin?

Back

Melanin is a pigment produced by melanocytes that provides color to the skin and protects against UV radiation.

Front

What are the main components of the thoracic cavity?

Back

The thoracic cavity contains the heart, lungs, and major blood vessels, protected by the rib cage.

Front

What is the endosteum?

Back

The endosteum is a thin membrane lining the medullary cavity of long bones, involved in bone growth and repair.

Front

What is the role of the digestive system?

Back

The digestive system is responsible for breaking down food, absorbing nutrients, and eliminating waste.