A tissue is built from tightly packed cells with almost no material between them, has a free surface, and rests on a basement membrane. What tissue class is it?

A tissue has cells scattered through abundant extracellular matrix with fibers that bind, support, or protect other body parts. What tissue class is it?

A tissue contains excitable cells that shorten when internal protein filaments slide past each other. What tissue class is it?

A tissue is specialized for rapid body communication using impulse-conducting cells and supporting cells. What tissue class is it?

An avascular sheet covers a body surface, lines an organ cavity, and can replace worn surface cells quickly. What tissue class is it?

A tissue cushions organs, stores energy, or forms tendons, cartilage, bone, and blood because its matrix varies widely. What tissue class is it?

A tissue is made of contractile cells that generate force for body movement, organ squeezing, or pumping blood. What tissue class is it?

One tissue class forms the brain, spinal cord, and sensory pathways that monitor conditions and coordinate responses. What class is it?

Cells in a tissue attach to each other with many junctions and show polarity, with one side facing a surface and the other attached below. What tissue class is it?

A tissue has fibroblasts, chondrocytes, or other cells living in a nonliving matrix that provides most of the tissue's physical properties. What class is it?

The lining of air sacs is one cell layer thick, and each cell is flat and very thin so gases can diffuse quickly. What epithelial subtype is it?

A kidney tubule lining has one layer of cells that are about as tall as they are wide and specialize in secretion and absorption. What epithelial subtype is it?

A digestive tract lining has one layer of tall cells with mucus-producing goblet cells among them. What epithelial subtype is it?

The outer skin surface has many cell layers, with flattened cells at the free surface protecting against abrasion. What epithelial subtype is it?

A trachea lining looks layered because nuclei sit at different heights, and cilia move mucus along its surface. What epithelial subtype is it?

A urinary bladder lining stretches as the organ fills, and its surface cells change shape instead of tearing. What epithelial subtype is it?

A sweat gland duct has two layers of cells that are about equal in height and width, giving extra protection to the duct wall. What epithelial subtype is it?

A large gland duct has several layers, with tall surface cells over shorter basal cells. What epithelial subtype is it?

A capillary wall is only one flat cell layer thick, allowing oxygen and carbon dioxide to cross the vessel wall. What epithelial subtype is it?

An ovary surface covering has a single layer of cells with roughly equal height and width for protection and secretion. What epithelial subtype is it?

A loose mesh under an organ lining contains fibroblasts, collagen fibers, elastic fibers, much ground substance, and many small vessels. What connective subtype is it?

A tissue contains large cells with lipid droplets that push the nucleus to the edge, with little extracellular matrix between cells. What connective subtype is it?

Parallel collagen bundles with few cells and poor blood supply resist pulling force in one direction, as in tendons and ligaments. What connective subtype is it?

Collagen bundles run in many directions in a tissue such as the dermis, letting it resist stress from several directions. What connective subtype is it?

A firm, glassy gel matrix lacks its own blood vessels and supports airway rings and the ends of long bones. What connective subtype is it?

A flexible gel matrix with many elastic fibers supports the external ear and epiglottis without its own blood vessels. What connective subtype is it?

Thick collagen fibers in a firm matrix form shock-absorbing pads between vertebrae and in the pubic symphysis. What connective subtype is it?

A hard mineralized matrix is arranged in rings around central canals that contain blood vessels. What connective subtype is it?

Cells and platelets are suspended in a fluid matrix called plasma and are moved through vessels by the pumping heart. What connective subtype is it?

Branching fibers form a soft internal framework that supports immune cells in lymph nodes and spleen. What connective subtype is it?

Long cylindrical fibers have many nuclei, obvious stripes, and voluntary control for moving the skeleton. What tissue subtype is it?

Branching striped cells have one or two central nuclei, join end to end, and contract without conscious control. What tissue subtype is it?

Spindle-shaped cells lack stripes and contract slowly in the walls of hollow organs without conscious control. What tissue subtype is it?

A cell has a body, dendrites, and a long axon, and it conducts electrical impulses to another cell. What subtype is it?

A support cell insulates axons, nourishes signaling cells, or protects tissue but does not carry the main electrical message. What subtype is it?

Under the microscope, each long muscle fiber has many nuclei pressed against its edge, just under the cell membrane. What tissue subtype is it?

Muscle in the walls of blood vessels tightens to narrow the vessel and reduce blood flow. What tissue subtype is it?

Dark bands called intercalated discs cross the tissue where neighboring cells join end to end. What tissue subtype is it?

Which nervous tissue cell is long-lived and generally does not divide in adults, so damaged ones are seldom replaced?

Astrocytes, microglia, and Schwann cells all belong to which group of nervous tissue cells?