Topic 1: Introduction To Histology

Question 1

Name all of the chemical level of organization in biological systems in order

Answer 1

1.) Chemical Level
2.) Cellular Level
3.) Tissue Level
4.) Organ Level
5.) Organ System
6.) Organismal Level

Question 2

What characterizes the cellular level of organization?

Answer 2

• Cells are the basic structural and functional units of life.
• it is the individual cells of an organism

Cells are made up of molecules and perform essential functions.

Question 3

What is the tissue level of organization?

Answer 3

Groups of similar cells that perform a specific function.

Tissues are classified into four main types: epithelial, connective, muscle, and nervous.

Question 4

What defines the organ level of organization?

Answer 4

Structures made up of different types of tissues working together.

Organs perform specific functions vital for an organism’s survival.

Question 5

What is an organ system?

Answer 5

A group of organs that work together to perform complex functions.

Examples include the digestive system, respiratory system, and circulatory system.

Question 6

Fill in the blank: The smallest independent unit of life is a _______.

Answer 6

cell

Question 7

True or False: Molecules are made up of atoms.

Answer 7

True

Question 8

What level of organization consists of multiple cells working together?

Answer 8

Tissue level

This level includes various tissues that have specific functions.

Question 9

What is the role of an organ in an organism?

Answer 9

To perform specific functions vital for survival.

Organs are composed of different tissue types that collaborate to achieve these functions.

Question 10

What are the four main types of tissues in the human body?

Answer 10

• Epithelial
• Connective
• Muscle
• Nervous

Each tissue type has distinct functions and characteristics.

Question 11

Fill in the blank: A group of organs that work together is known as an _______.

Answer 11

organ system

Question 12

What are the interacting components of the Tissue?

Answer 12

• Cell
• Extracellular Matrix

Question 13

It is composed of macromolecules, which mostly forms complex molecules such as collagen fiber

Answer 13

Extracellular Matrix

Question 14

It supports the cell, contains the fluid transporting nutrients to the cell and carrying away their wastes and secretory products

Answer 14

Extra cellular Matrix

Question 15

4 types of tissues

Answer 15

• Epithelial Tissues
• connective tissue
• nervous tissue
• muscle tissue

Question 16

This tissue is for cover, absorption, secretion

Answer 16

Epithelial Tissue

Question 17

This tissue is for suppprt and binds 5ue epithelium to underlying tissue

Answer 17

Connective Tissue

Question 18

This tissue is for movement

Answer 18

Muscle Tissue

Question 19

Prepares the tissue sample for examination

Answer 19

Tissue processing

Question 20

It examines the tissue under the microscope while detecting abnormalities

Answer 20

Visualization

Question 21

Diagnosis and management

Answer 21

Use results as a guide

Question 22

Maintaining tissue in a life like matter

Answer 22

Fixation

Question 23

2 examples of a fixative solution

Answer 23

Formaldehyde
Glutaraldehyde

Question 24

These solutions cross link proteins and inactive degradative enzymes

Answer 24

Fixative Solutions

Question 25

It cross link adjacent proteins

Answer 25

Glutaraldehyde

Question 26

What type of fixative solution do you usually use for an electron microscopy?

Answer 26

Glutaraldehyde solution

Question 27

Glutaraldehyde treated tissue must be immersed in...

Answer 27

Buffer osmium tetroxide

Question 28

Tissue has 2 interacting components

Answer 28

Cells and ECM

Question 29

A rectangular structure that houses a tissue during fixation

Answer 29

Tissue cassettes

Question 30

Removes water and fats through a series of increasing alcoholo concentrated solutions

Answer 30

Dehydration

Question 31

State the increasing alcohol concentration and how many minutes it is soaked.

Answer 31

1.) 70% <15 min> 2.) 95% <15 min> 3.) 100% <15 min> 4.) 100% <30 min> 5.) 100% <45min>

Question 32

True or false: Ethanol is a superior fat solvent

Answer 32

False. It is poor fat solven

Question 33

2 examples of superior fat solven

Answer 33

Acetone and Isopropanol

Question 34

Transitional solvent

Answer 34

Chloroform/trichloroethane

Question 35

Alcohol is removed in organic solvents in which both alcohol and paraffin are miscible

Answer 35

Clearing

Question 36

Clearing solvent

Answer 36

Xylene