Lab 2

Question 1

Single layer of flattened cells with disc-shaped central nuclei and sparse cytoplasm; human lung, lung alveoli, capillary wall

Answer 1

Simple squamous epithelium

Question 2

Single layer of cube like cells with large, spherical central nuclei; human kidney tubules

Answer 2

Simple cuboidal epithelium

Question 3

Single layer of tall cells with round to oval nuclei; some have cilia; layer may contain goblet cells; human stomach, lining of digestive tract

Answer 3

Simple columnar epithet

Question 4

Single layer of cells of differing heights, some not reaching the free surface; nuclei seen at different levels; may contain goblet cells and cilia; lining of trachea

Answer 4

Pseudostratified ciliated columnar

Question 5

Thick membrane composed of several cell layers; basal cells are cuboidal or columnar and metabolically active; surface cells are squamous; epidermis of skin, lining of esophagus

Answer 5

Stratified squamous epithelium

Question 6

Two layers of cube like cells; salivary glands

Answer 6

Stratified cuboidal

Question 7

Several cell layers; basal cells usually cuboidal; superficial cells elongated and columnar; male urethra

Answer 7

Stratified columnar epithelium

Question 8

Resembles both stratified squamous and stratified cuboidal; basal cells cuboidal or columnar; surface cells some shaped or squamouslike; ureters, bladder

Answer 8

Transitional epithelium

Question 9

Gel-like matrix with all three fiber types; cells: fibroblasts, macrophages, mast cells, and some white blood cells; under epithelia

Answer 9

Loose connective tissue, areolar

Question 10

Matrix as in areolar, but very sparse; closely packed adipocytes, or fat cells, have nucleus pushed to the side by large fat droplet; under skin, in abdomen

Answer 10

Loose connective tissue, adipose

Question 11

Network of reticular fibers in a typical loose ground substance; reticular cells lie on the network; lymphoid organs

Answer 11

Loose connective tissue, reticular

Question 12

Primarily parallel collagen fibers; a few elastin fibers; major cell type is the fibroblast; tendons, ligaments

Answer 12

Dense connective tissue, dense regular

Question 13

Primarily irregularly arranged collagen fibers; some elastic fibers; major cell type is the fibroblast; dermis of skin, fibrous joints

Answer 13

Dense connective tissue, dense irregular

Question 14

Amorphous but firm matrix; collagen fibers form an imperceptible network; chondroblasts produce the matrix and when mature (chondrocytes) lie in lacunae; costal cartilage, nose, trachea

Answer 14

Hyaline cartilage

Question 15

Similar to hyaline cartilage but more elastic fibers in matrix; ear, epiglottis

Answer 15

Elastic cartilage

Question 16

Matrix similar to but less firm than that in hyaline cartilage; thick collagen fibers predominate; intervertebral discs

Answer 16

Fibrocartilage

Question 17

Hard, calcified matrix containing many collagen fibers; osteocytes lie in lacunae

Answer 17

Bone

Question 18

Neurons are branching cells; cell processes that may be quite long extend from the nucleus-containing cell body; also contributing to nervous tissue are nonirritable supporting cells; brain and spinal cord

Answer 18

Neuralgia/ neuron

Question 19

Long, cylindrical, multinucleate cells; obvious striations

Answer 19

Skeletal muscle

Question 20

Branching, striated, generally uninucleate cells that interdigitate at specialized junctions (intercalated discs)

Answer 20

Cardiac muscle

Question 21

Spindle-shaped cells with central nuclei; no striations; cells arranged closely to form sheets

Answer 21

Smooth muscle