Lab 2 - Animal Cells & Tissues

Question 1

represented by a single layer of flattened cells, the alveoli of lungs and the inner walls of arteries are examples

Answer 1

Simple squamous epithelium

Question 2

represented by a single layer of box‐shaped cells, found in tubules of the mammalian kidney

Answer 2

Simple cuboidal epithelium

Question 3

contain a single layer of elongated, rectangular cells, found in inner lining of stomach

Answer 3

Simple columnar epithelium

Question 4

layered arrangement of cells, in many cases, these tissues are composed of more than one type of cell

Answer 4

Stratified Squamous Epithelium

Question 5

composed of widely spaced cells within a gelatinous, glycoprotein matrix that provides firm, but flexible support

Answer 5

Cartilage

Question 6

embedded within the matrix of cartilage, hollow chambers, contains choanocytes

Answer 6

lacunae

Question 7

cartilage‐producing cells.

Answer 7

chondrocytes

Question 8

found between bones, where it cushions the surfaces of joints, Its intercellular matrix is composed primarily of chondrin with thin collagen fibers to provide support and suppleness

Answer 8

hyaline cartilage

Question 9

contains fine collagen fibers and numerous elastic fibers that provide greater elasticity to this cartilage

Answer 9

Elastic cartilage

Question 10

one of the most specialized structural connective tissues, and the strongest of them, In addition to providing structural support for the body, bone is responsible for storing calcium that can be withdrawn by the body as blood calcium levels drop, and for producing red blood cells in the bone marrow

Answer 10

Bone

Question 11

bone-producing cells

Answer 11

osteocytes

Question 12

thin, concentric layers

Answer 12

lamellae

Question 13

layered rings around tiny, narrow pathways

Answer 13

Haversian canals

Question 14

nutrients are transported to the osteocytes through tiny, fingerlike channels in the lamellae

Answer 14

canaliculi

Question 15

a type of connective tissue that stores or sequesters food for the body in the form of fat droplets, contains oil-filled vacuoles

Answer 15

adipose connective tissue

Question 16

loosely scattered cells surrounded by a clear, gelatinous matrix, contains thin elastic fibers and thicker nonelastic fibers composed of collagen

Answer 16

loose connective tissue

Question 17

The cells that secrete collagen and other fibrous proteins

Answer 17

fibroblasts

Question 18

contains tightly packed collagen fibers, making it stronger than loose connective tissue. Dense connective tissue is further classified based on the arrangement of collagen fibers into regular and irregular types

Answer 18

dense connective tissue

Question 19

the cords that connect muscles to bones

Answer 19

Tendons

Question 20

the attachments that connect bones to one another

Answer 20

ligaments

Question 21

long and spindle‐shaped and contain single nuclei

Answer 21

smooth muscle

Question 22

composed of long, unbranched muscle fibers that are actually composites of many individual muscle cells, giving these fibers their multinucleated appearance

Answer 22

skeletal muscle

Question 23

is not under voluntary control and its nuclei are not located on the periphery of the cells

Answer 23

cardiac muscle

Question 24

clusters of nerve cell bodies found throughout the body

Answer 24

ganglia

Question 25

gap junctions that allow communication between the cells of the muscle fibers and permit cardiac muscle to depolarize quickly and contract as a unit, much like skeletal muscle, though unlike the slow, wavelike contractions of other involuntary muscle

Answer 25

Intercalated disc

Question 26

cover external surfaces for protection or line the internal surfaces of body cavities and vessels. They function as barriers, and in secretion and absorption

Answer 26

Epithelial Tissues

Question 27

bind, support, and protect body parts and systems

Answer 27

Connective tissues

Question 28

permit movement of the animal through its environment and/or movement of substances through the animal

Answer 28

Muscle tissues

Question 29

initiate and transmit electrical nerve impulses to and from the body parts and store information in the form of biochemical compounds. They serve in communication and control of the animal

Answer 29

Nervous tissues