Tissues Under The Microscope

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Questions and Answers

What are the four types of tissues?

Epithelial, muscle, connective, nervous.

What are the three types of epithelial tissue? What two forms do they come in?

Squamous, cuboidal, columnar. They come in simple (flat/one layer) or stratified (layered/complex).

What kind of cells does this epithelial tissue have? Where do the types of cells in this tissue occur? What are their function?

Stratified (layered) squamous cells. They occur at abrasions and on the skin. Their function is to protect the body.

What kind of cells does this epithelial tissue have? What structure is the pointer pointed to? What is the function of the types of cells in this tissue?

Columnar cells. The pointer is pointed at villus. Their function is to absorb nutrients from food and transfer them to blood. Signup and view all the answers

What kind of cells does this epithelial tissue have? What is the function of the types of cells in this tissue?

Cuboidal cells. Their function is to reabsorb nutrients to put back into blood. Signup and view all the answers

What kind of cells does this epithelial tissue have? What is the function of the structures attached to these cells?

Simple columnar cells with cilia. The cilia filters air when you breathe. Signup and view all the answers

What kind of muscle tissue is this? Is it striated? Where can this type of tissue be found and why?

Smooth muscle tissue. It is not striated. This type of tissue can be found in the esophagus, intestine, and stomach, allowing food to push through. Signup and view all the answers

What kind of muscle tissue is this?

Smooth muscle tissue. Signup and view all the answers

What kind of muscle tissue is this? Is it striated? What structure does it have that allows for communication between cardiac muscle cells?

Cardiac muscle tissue. It is striated. It has intercalated discs that allow for communication between cardiac muscle cells. Signup and view all the answers

What kind of muscle tissue is this? Is it striated?

Skeletal muscle tissue. It is striated. Signup and view all the answers

What kind of connective tissue is this? Give an example of this kind of tissue, seen here. Where is it found in the body?

Loose connective tissue. An example is areolar tissue. It surrounds organs. Signup and view all the answers

What kind of connective tissue is this? Give an example of this kind of tissue, seen here.

Dense connective tissue. An example is tendon (fibrous). Signup and view all the answers

What kind of connective tissue is this?

Adipose tissue. Signup and view all the answers

What kind of connective tissue is this? What are its cells called?

Cartilage. Its cells are called chondrocytes. Signup and view all the answers

What kind of connective tissue is this? What is osteon, seen here?

Bone connective tissue. Osteon is the structural unit of dense bone. Signup and view all the answers

What kind of connective tissue is this? What are its two types of cells called? How do you distinguish these cells?

Blood connective tissue. The two types are erythrocytes (red blood cells) and leukocytes (white blood cells). Erythrocytes have no nuclei and are dyed red; leukocytes have nuclei and are dyed purple. Signup and view all the answers

What kind of tissue is this and what are its cells called? What is the other kind of nervous tissue (not shown here)?

Nervous tissue. Its cells are called neurons. The other kind is glial cells. Signup and view all the answers

Study Notes

Types of Tissues

Four main types of tissues: epithelial, muscle, connective, nervous.

Epithelial Tissue

Three types of epithelial tissue: squamous, cuboidal, columnar.
Two forms of epithelial tissue: simple (one layer) and stratified (multiple layers).

Stratified Squamous Cells

Composed of stratified squamous epithelial cells.
Found in areas subject to abrasion, such as the skin, providing protection.

Columnar Cells with Villus

Composed of columnar epithelial cells.
Structure indicated by pointer: villus.
Function: absorption of nutrients from food into the bloodstream.

Cuboidal Cells

Composed of cuboidal epithelial cells.
Function: reabsorption of nutrients to return to the blood.

Simple Columnar Cells with Cilia

Composed of simple columnar epithelial cells.
Function of cilia: filter air during inhalation, found in the trachea.

Smooth Muscle Tissue

Type: smooth muscle tissue, non-striated.
Found in: esophagus, intestines, and stomach, allowing movement of food through the digestive tract.

Cardiac Muscle Tissue

Type: cardiac muscle tissue, striated.
Unique structure: intercalated discs facilitating communication between cardiac cells.

Skeletal Muscle Tissue

Type: skeletal muscle tissue, striated.

Connective Tissue

Types of connective tissue: Proper (Loose and Dense).
Loose connective tissue example: areolar, surrounding organs with ample ground (white) space.
Dense connective tissue example: tendon, characterized by very little ground space.

Adipose Tissue

Type: adipose (fat) connective tissue.
Characterization: cells/nuclei pushed to the side.

Cartilage

Type: cartilage connective tissue.
Cells specific to cartilage: chondrocytes.

Bone

Type: bone connective tissue.
Osteon: structural unit seen in dense bone.

Blood

Type: blood connective tissue.
Two primary cell types: erythrocytes (red blood cells) and leukocytes (white blood cells).
Erythrocytes distinguished by hemoglobin and lack of nuclei; leukocytes have nuclei, typically stained purple for identification under a microscope.

Nervous Tissue

Type: nervous tissue, primarily composed of neurons.
Other type of nervous tissue: glial cells, not visible under the microscope.

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Description

Explore the fundamental types of tissues through this flashcard quiz. Learn about epithelial, muscular, connective, and nervous tissues, as well as their classifications and characteristics. Perfect for biology students who wish to deepen their understanding of tissue types.