Katherine White- Chapter 12 Lymphology Knowt

What are the general functions of the lymphatic system?

The lymphatic system helps in maintaining fluid balance, absorbing fats from the digestive system, and plays a role in immune defense.

How does lymphatic fluid flow from capillaries to the heart?

Lymphatic fluid flows from capillaries into lymphatic vessels, is filtered through lymph nodes, and then drains into the right or left lymphatic ducts before returning to the heart.

What is the right lymph duct?

The right lymph duct, or right lymphatic duct, is responsible for draining lymph from the right upper quadrant of the body into the right subclavian vein.

What is the left lymphatic duct?

The left lymphatic duct, or thoracic duct, is the largest lymphatic vessel that drains lymph from the lower body, left arm, left side of the head, and neck into the left subclavian vein.

What are lacteals?

Lacteals are specialized lymphatic vessels in the small intestine that absorb dietary fats and fat-soluble vitamins from the digestive tract.

What are lymph nodes?

Lymph nodes are small, bean-shaped structures that filter lymph and are key components of the immune system.

Where is there a large collection of lymph nodes?

A large collection of lymph nodes can be found in the cervical, axillary, and inguinal regions.

What is the spleen?

The spleen is an organ that filters blood, recycles iron, and plays a role in immune function.

What is white pulp tissue?

White pulp tissue consists of lymphoid tissue and is involved in the immune response in the spleen.

What is red pulp tissue?

Red pulp tissue is involved in blood filtration, removal of old red blood cells, and storage of platelets.

What are the additional functions of the spleen?

Additional functions of the spleen include the production of lymphocytes, the recycling of iron, and serving as a blood reservoir.

What is the thymus?

The thymus is an organ where T lymphocytes mature and is crucial for the development of the immune system.

What are tonsilar tissue?

Tonsilar tissue is lymphoid tissue located in the throat that helps defend against pathogens entering through the mouth and nose.

What is lymphedema?

Lymphedema is the swelling that occurs when lymph fluid does not adequately drain, often due to lymphatic system damage.

What are autoimmune diseases?

Autoimmune diseases occur when the immune system mistakenly attacks the body’s own cells.

What is lupus erythematosus?

Lupus erythematosus is a chronic autoimmune disease that can affect multiple organs and is characterized by inflammation and tissue damage.

What is rheumatoid arthritis?

Rheumatoid arthritis is an autoimmune disorder that primarily affects joints, causing inflammation, pain, and eventual joint damage.

What is rheumatic heart disease?

Rheumatic heart disease is damage to the heart valves and heart muscle caused by rheumatic fever, a complication of untreated strep throat.

What is myasthenia gravis?

Myasthenia gravis is an autoimmune disease that causes weakness in the skeletal muscles by disrupting communication between nerves and muscles.

What is multiple sclerosis?

Multiple sclerosis is an autoimmune disease that affects the central nervous system by damaging the myelin sheath of nerve fibers.

What is ulcerative colitis?

Ulcerative colitis is a chronic inflammatory bowel disease that causes inflammation and ulcers in the colon and rectum.

What is juvenile onset diabetes?

Juvenile onset diabetes, or Type 1 diabetes, is a condition where the pancreas produces little to no insulin, typically diagnosed in children and adolescents.