General Biology : Sir Nico's Materials Animal Tissues

Question 1

This type of tissue is commonly seen outside the body as coverings
or as linings of organs and cavities. Epithelial tissues are characterized by closely joined
cells with tight junctions (i.e., a type of cell modification).

Answer 1

Epithelial Tissue

Question 2

for secretion

Answer 2

cuboidal—

Question 3

brick-shaped cells; for secretion and active absorption

Answer 3

Simple Columnar

Question 4

plate-like cells; for exchange of material through diffusion

Answer 4

simple squamous—

Question 5

multilayered and regenerates quickly; for protection

Answer 5

stratified squamous—

Question 6

a single layer of cells; may just look stacked because of
varying height; for the lining of the respiratory tract; usually lined with cilia (i.e., a
type of cell modification that sweeps the mucus).

Answer 6

pseudo-stratified columnar—

Question 7

Connective Tissue

Answer 7

• Blood
• Connective Tissue Proper (CTP)
• Cartilage
• Bone

Question 8

made up of plasma (i.e., liquid extracellular matrix); contains water, salts, and
dissolved proteins; erythrocytes that carry oxygen (RBC), leukocytes for defense (WBC),
and platelets for blood clotting.

Answer 8

BLOOD—

Question 9

made up of loose connective tissue that is
found in the skin and fibrous connective tissue that is made up of collagenous fibers
found in tendons and ligaments. Adipose tissues are also examples of loose connective
tissues that store fats which function to insulate the body and store energy.

Answer 9

CONNECTIVE TISSUE PROPER (CTP)—

Question 10

characterized by collagenous fibers embedded in chondroitin sulfate.
Chondrocytes are the cells that secrete collagen and chondroitin sulfate. Cartilage
functions as a cushion between bones.

Answer 10

CARTILAGE —

Question 11

mineralized connective tissue made by bone-forming cells called osteoblasts
which deposit collagen. The matrix of collagen is combined with calcium, magnesium,
and phosphate ions to make the bone hard. Blood vessels and nerves are found in a
central canal surrounded by concentric circles of osteons.

Answer 11

BONE —

Question 12

Muscle Tissue

Answer 12

• skeletal—striated;
• cardiac—striated;
• smooth—not striated;

Question 13

These tissues are composed of long cells called muscle fibers that allow
the body to move voluntarily or involuntary. The movement of muscles is a response to
signals coming from nerve cells.

Answer 13

Muscle Tissue—

Question 14

These tissues are composed of nerve cells called neurons and glial
cells that function as support cells. These neurons sense stimuli and transmit electrical
signals throughout the animal body.

Answer 14

Nervous Tissue—

Question 15

is the part of the neuron that receives impulses from other neurons

Answer 15

Dendrite

Question 16

the part where the impulse is transmitted to other neurons.

Answer 16

Axon