In the lung's tiny air sacs, oxygen and carbon dioxide cross an extremely thin wall. Which epithelial tissue lines those air spaces?

A passage to the lungs traps inhaled dust in mucus and moves it steadily toward the throat. Which epithelial tissue lines this passage?

Filtrate in many kidney tubules is adjusted as cells reclaim water, salts, and glucose while secreting wastes. Which epithelial tissue lines many of those tubules?

In the small intestine, digested nutrients pass from the lumen into blood and lymph. Which epithelium forms much of this lining?

The outer body surface resists abrasion and slows water loss. Which epithelium covers it?

The urinary bladder lining expands as urine is stored and recoils after emptying. Which epithelium lines it?

Under many epithelial sheets, a loose layer cushions small vessels and lets immune cells move through. Which connective tissue is found there?

Beneath the skin, a soft layer stores energy and helps reduce heat loss. Which connective tissue is common there?

A cord between muscle and bone must transmit pull along one main direction. Which connective tissue makes most of that cord?

Ringed supports around the windpipe keep the airway open while allowing some flexibility. Which connective tissue forms those supports?

Simple squamous epithelium is a one-cell-thick layer of very thin cells for rapid exchange. Where is it found?

Stratified squamous epithelium has many layers, so surface cells can rub away without exposing deeper cells. Where is it found?

Simple cuboidal epithelium forms a single layer of boxlike cells that secrete or absorb. Where is it common?

Transitional epithelium has layered cells whose surface shape changes as the organ fills. Where is it found?

Dense regular connective tissue contains parallel collagen fibers built to resist tension in one direction. Where is it found?

Adipose tissue is packed with cells that store triglycerides and cushion organs. Where is it found?

Hyaline cartilage has a smooth, firm matrix that reduces friction and supports flexible structures. Where is it found?

Areolar connective tissue is loose, gel-like packing with fibers running in many directions. Where is it found?

An air-exchange surface needs gases to cross with minimal distance. Which feature fits that job?

Kidney tubule cells must move ions, nutrients, and wastes between filtrate and blood. Which feature fits that work?

The lining of the small intestine must absorb nutrients and release mucus. Which feature best suits that site?

The skin surface must tolerate rubbing without leaking body fluids. Which structural feature fits that site?

The lining of the urinary bladder must change shape as volume rises and falls. What feature fits this job?

A tendon must resist a strong pull from one direction when a muscle contracts. Which structural feature fits that site?

Cartilage in a joint must provide firm support while staying smoother and more flexible than bone. Which feature fits that site?

If the air-exchange lining thickened into many layers, what would be lost?

Smoking can replace the normal mucus-moving airway lining with a tougher layered lining. What function is reduced?

If the bladder lining were replaced by a rigid, nonstretching layered surface, what would the organ lose?

If dense regular connective tissue in a tendon is torn and disorganized, what is lost first?

If the small-intestine lining lost its tall absorptive cells, what would decrease?