Integumentary System Vocab

1. What are epithelial membranes?

They are also called covering and lining membranes. It includes the cutaneous membrane (skin), mucous membranes, and the serous membranes. Although they all contain an epithelium sheet, it is always combined with an underlying layer of connective tissue.

They are exclusively composed of epithelial cells.

They are found only in plant tissues.

They do not serve a protective function.

Epithelial membranes consist of both epithelial cells and an underlying layer of connective tissue, providing a protective covering and lining for various parts of the body.

Explanation

Epithelial membranes consist of both epithelial cells and an underlying layer of connective tissue, providing a protective covering and lining for various parts of the body.

2. What is the cutaneous membrane?

The membrane surrounding the heart

The lining of the digestive tract

The covering of the brain

Your skin. Its superficial epidermis is composed of a keratinizaing stratified squamous epithelium. The underlying dermis is mostly dense (fibrous) connective tissue. It is exposed to air and is a dry membrane.

The cutaneous membrane refers specifically to the skin, whereas the lining of the digestive tract, the membrane surrounding the heart, and the covering of the brain are different types of membranes in the body.

Explanation

The cutaneous membrane refers specifically to the skin, whereas the lining of the digestive tract, the membrane surrounding the heart, and the covering of the brain are different types of membranes in the body.

3. What is the composition of mucous membrane?

Composed of epithelium (the type varies with the site) resting on a loose connective tissue membrane called a lamina propria. This membrane type lines all body cavities that open to the exterior, such as those of the hollow organs of the respiratory, digestive, urinary, and reproductive tracts.

Consists of nerve cells and blood vessels

Contains only connective tissue

Is solely made up of muscle tissue

Mucous membranes are composed of a specific structure which includes epithelium and lamina propria, serving as a protective lining for body cavities. The incorrect answers do not accurately represent the composition of mucous membrane.

Explanation

Mucous membranes are composed of a specific structure which includes epithelium and lamina propria, serving as a protective lining for body cavities. The incorrect answers do not accurately represent the composition of mucous membrane.

4. What is a serous membrane?

A type of muscle tissue found in the heart.

A layer of skin that protects organs.

A membrane made up of dense irregular connective tissue.

Composed of a layer of simple squamous epithelium resting on a layer of areoler connective tissue. In contrast to mucous membranes, serous membranes line body cavities that are closed to the exterior (except for the dorsal cavity and joint cavities). Serous membranes occur in pairs. The parietal layer lines a specific portion of the wall of the ventral body cavity. It folds in on itself to form the visceral layer, which covers the outside of the organs in that cavity.

A serous membrane is composed of a layer of simple squamous epithelium resting on a layer of areolar connective tissue, not dense irregular connective tissue or muscle tissue. It acts to line body cavities and is different from the skin layer that protects organs.

Explanation

A serous membrane is composed of a layer of simple squamous epithelium resting on a layer of areolar connective tissue, not dense irregular connective tissue or muscle tissue. It acts to line body cavities and is different from the skin layer that protects organs.

5. What is the peritoneum?

A layer of skin tissue.

The serosa lining the body cavity and covering its organs is the peritoneum.

The membrane that covers the lungs.

A type of muscle found in the abdomen.

The peritoneum is the serosa lining the body cavity and covering its organs, not a type of muscle, the membrane covering the lungs, or a layer of skin tissue.

Explanation

The peritoneum is the serosa lining the body cavity and covering its organs, not a type of muscle, the membrane covering the lungs, or a layer of skin tissue.

6. What is the name of the membrane surrounding the lungs?

The membrane surrounding the lungs is the diaphragm.

The membrane surrounding the lungs is the pleura.

The membrane surrounding the lungs is the pericardium.

The membrane surrounding the lungs is the mediastinum.

The pleura is a double-layered membrane surrounding the lungs and lining the chest cavity. It helps protect and cushion the lungs during breathing.

Explanation

The pleura is a double-layered membrane surrounding the lungs and lining the chest cavity. It helps protect and cushion the lungs during breathing.

7. What is the membrane surrounding the heart known as?

Epicardium

Endocardium

Myocardium

The membrane surrounding the heart is the pericardium.

The pericardium is the tough, fibrous sac that surrounds the heart and protects it. The endocardium is the innermost layer of the heart, the myocardium is the middle muscular layer, and the epicardium is the outermost layer.

Explanation

The pericardium is the tough, fibrous sac that surrounds the heart and protects it. The endocardium is the innermost layer of the heart, the myocardium is the middle muscular layer, and the epicardium is the outermost layer.

8. What is the function of synovial membrane?

Helps in absorption of nutrients from the digestive system

A protective barrier against foreign invaders

Responsible for storing excess water in the body

Composed of soft areoler connective tissue and contain no epithelial cells at all. These membranes line the fibrous capsules surrounding joints, where they provide a smooth surface and secrete a lubricating fluid. They also line small sacs of connective tissue called bursae and the tube-like tendon sheaths.

The synovial membrane's function is to line the fibrous capsules surrounding joints, providing a smooth surface and secreting a lubricating fluid. It also lines structures like bursae and tendon sheaths, aiding in joint movement.

Explanation

The synovial membrane's function is to line the fibrous capsules surrounding joints, providing a smooth surface and secreting a lubricating fluid. It also lines structures like bursae and tendon sheaths, aiding in joint movement.

9. What are bursae?

A type of bone found in the human body

A type of white blood cell

Smalls sacs of connective tissue that are lined by synovial membrane.

Fluid-filled sacs found in the brain

Bursae are small sacs of connective tissue that act as cushions between bones and tendons or muscles around a joint.

Explanation

Bursae are small sacs of connective tissue that act as cushions between bones and tendons or muscles around a joint.

10. What are tendon sheaths?

Tube-like structures that are lined by synovial membrane.

Muscle fibers responsible for generating movement.

Thin layers of cartilage that protect the ends of bones in joints.

Organs that store bile produced by the liver.

Tendon sheaths are tube-like structures that surround tendons to reduce friction during movement. They are lined by synovial membrane to provide lubrication.

Explanation

Tendon sheaths are tube-like structures that surround tendons to reduce friction during movement. They are lined by synovial membrane to provide lubrication.