Lymphatic, Respiratory 🫁, Digestive🍎, Urinary🚽

What is the function of the lymphatic system?

Fluid return and immune defense

Where do lymphocytes mature?

B cells (bone marrow), T cells (thymus)

What does “self” mean in immunity?

Recognition of body’s own cells

What is innate immunity?

Non-specific defense

What is adaptive immunity?

Specific defense with memory

What are antigen-presenting cells?

Cells that display antigens (dendritic, B cells)

What do T cells do?

Kill infected cells or coordinate response

What do B cells do?

Produce antibodies

What is tidal volume?

Air in a normal breath

What is vital capacity?

Max air exhaled after max inhale

What is the route of air?

Nose → pharynx → larynx → trachea → bronchi → lungs

What is Boyle’s law?

Pressure and volume are inversely related

What do chemoreceptors detect?

CO2, O2, and pH levels

What is the GI tract?

Tube food passes through

What are accessory organs?

Organs that aid digestion (liver, pancreas)

What are parts of the small intestine?

Duodenum, jejunum, ileum

What are parts of the large intestine?

Cecum, colon, rectum

What are the phases of digestion?

Cephalic, gastric, intestinal

What is the order of filtrate flow in the nephron?

Glomerulus → capsule → PCT → loop → DCT → collecting duct

What hormone increases water reabsorption?

ADH

What hormone increases sodium reabsorption?

Aldosterone

What hormone lowers blood pressure via sodium excretion?

ANP