A&P1 Exam 1: Histology: Tissues (Lab 2)

What is the main difference between regular and irregular dense connective tissue?

In dense regular the fibers are packed tightly and run parallel. In dense irregular, the bundles of fiber are thicker and run in multiple planes.

What are the two types of cells that compose nervous tissue, and what are their functions?

Neuroglia (assists transmission of impulses) Neuron (conducts cells transmission impulses)

Where is compact bone found?

Outside of bones

What are the 4 types of connective tissue, with an example of each?

1. Loose (areolar) 2. dense (regular, irregular, elastic) 3. special fibrous matrix (bone, blood) 4. special fluid matrix (cartilage)

What are the 4 types of simple epithelial tissue?

1. Simple Squamous 2. Simple Cuboidal 3. Simple Columnar 4. Pseudostratified

What are the 4 types of stratified epithelial tissue?

1. Transitional 2. Stratified Columnar 3. Stratified Squamous 4. Stratified Cuboidal

Name the six functions of blood

1. Transports oxygen from lungs to body cells 2. Protects the body from pathogens 3. Brings waste carbon dioxide from cells to lungs 4. Transports nutrients and hormones 5. Regulates body temperature 6. Clots to prevent blood loss at site of injury

______________________________ secrete hormones into the bloodstream, whereas ______________________________ secrete substances into ducts and onto the skin or the lumen of a hollow organ.

Apocrine, Endocrine

Where is loose connective tissue found in the body?

Around blood vessels and organs.

What are two types of specialized connective tissue that consist of cells in a fluid matrix (not a ground substance with fibers)?

Blood & lymph

Osteocytes

Bone tissue This contains multile collagen fibers and calcium salts.

What are the 3 types of muscle tissue, and where are they each located?

Cardiac (walls of heart) Smooth (walls of hollow visceral organs) Skeletal (attached to skeleton)

Chondrocytes

Cartilage tissue This contains less collagen fibers and calcium salts.

Neuroglia

Cells that support and protect neurons

Connective Tissue

Consists of cells in a matrix of amorphous ground substance and fibers, supports the body and binds tissues and organs. Two specialized tissues, blood and lymph, contain fluid instead of fibers.

Nervous Tissue

Consists of neurons and neuroglia that conduct impulses from on part of the body to another.

Epitheleal tissue

Consists of sheets of cells that cover body structures and glands that produce secretions.

Muscle Tissue

Consists of skeletal, cardiac, and smooth muscle fibers that produce body movements.

Name the four main types of body tissue & describe each

Epitheleal (sheets of cells covering structures/glands) Connective (amorphous ground fibers binds tissues/organs) Muscle (produce movements) Nervous (neurons that conduct impulses between parts of body)

Neurons

Individual cells in the nervous system that receive, integrate, and transmit information.

Where is spongy bone found?

Inside bones

What is the function of adipose tissue?

Protects, insulates, stores fat

Loose connective tissue contains cells that are interspersed in an extracellular matrix that is characterized by its loosely arranged ______________________________ and abundant ______________________________.

Protein fibers, ground substance

What is the function of reticular tissue?

Provides supporting framework

In general, ______________________________ facilitate absorption and filtration, whereas ______________________________ tend to protect underlying tissues from abrasion.

Simple epithelia, stratified epithelia

What are the 3 types of muscle tissue?

Skeletal Smooth Cardiac

What is the main difference between areolar and adipose tissues?

The difference between them is the areolar has fewer cells and a lot of matrix. Adipose tissue has many cells and both white and brown adipocytes.

Goblet cells and mammary glands are both exocrine glands—how are they similar and how are they different?

They are similare because the use the merocrine method of secretion which secretes vesicles into a duct, but they also may use apocrine methods when under stress. They are also both in males and females. Mammary glands are responsible for lactation. Goblet cells produce mucin.

What is the function of areolar tissue?

Wraps around organs & stores water and salt, holds organs in place.